Humidity temperature calculator This calculator uses the following temperature conversion rules: 1 °C = 33. Recommended Relative Humidity Recommended relative humidity level. ” Being a user, you need to find the RH in Celcius, Farehhite, or Kelvin scale. Humidity describes the proportion of water vapor in the air, liquid water (e. If the relative humidity is 60% at a temperature of 25°C, the saturation vapor pressure \( E_s \) can be calculated as: Mar 20, 2024 · How to calculate heat index? First, determine the relative humidity. abs. 2% relative humidity as the entering air, 61° dry bulb with 79. Latent Heat of Vaporization (Lv): Typically 2,500,000 Joules per kilogram (J/kg) at 0°C. Calculate online thermodynamic properties of moist (humid) air based on Hyland and Wexler formulation approved by American Society of Heating, Refrigeration and Air-conditioning Engineers. xlsx‎ (52. The actual vapor pressure is calculated using the dew point. Then click "Calculate". Specific Heat Capacity of Water Vapor (Cpv): Typically 1860 Joules per kilogram per Kelvin (J/(kg·K)). Enter a temperature or a dewpoint or both: relative humidity - requires both temp and dewpoint % Enthalpy of Moist Air calculator uses Enthalpy of Moist Air = 1. Relative Humidity Calculation Formula. The absolute humidity indicates the mass of water vapor per cubic meter By definition, wet-bulb temperature is the lowest temperature a portion of air can acquire by evaporative cooling only. Pick a cold outside temperature and adjust the actual humidity so that the relative humidity is about 60%. This is simply the outside temperature in °C. Once you've calculated relative humidity, you can use it in our wet-bulb temperature calculator. ) Dew Point Calculator is a web resource created by the Image Permanence Institute to help express and visualize the relationship between temperature, relative humidity and dew point. Nice 😎 Feb 10, 2025 · The Relative Humidity Converter simplifies RH calculation by taking: Air Temperature in °C or °F; Dew Point in °C or °F; After entering values, the tool computes RH and categorizes it into: Too Dry: < 30%; Comfortable: 30-50%; Moderate: 50-60%; Humid: 60-70%; Very Humid: > 70%; Example Calculation. Enter the air temperature and the dew point in degrees Fahrenheit, then click on the Calculate RH to compute the relative humidity. Find formulas and units for absolute humidity, dew point, enthalpy, mixing ratio, saturated vapor pressure and more. Relative humidity or dew point. Jul 31, 2024 · You can calculate the relative humidity, or the amount of moisture in the air, if you know the air temperature and dew point. Then click Calculate. However, determining the relative humidity requires additional data. Example Calculation. 100% means that no more water vapor in the air can be absorbed. Dec 4, 2019 · This allows calculation of the RH that the air will acquire at a different temperature. 67 * temperature It is the ratio of the current absolute humidity to the maximum absolute humidity possible for the current temperature. Summary: This calculator determines the relative humidity of air after it has been heated or cooled. Agricultural Professionals: Farmers and agricultural scientists may use this calculator to assess the humidity levels, which can influence crop growth, disease development, and irrigation decisions. 1"wc leaving static pressure with the "Moist Air This is the humidity ratio including the water droplets - the fog. Humidity Calculator on PST Website This calculator shows the inter-relationship of air temperature and moisture content with dew point and wet-bulb temperature as measured by a psychrometric thermometer. With h 3, and ω 3, determine the dry bulb temperature, relative humidity, and specific volume. Why is relative humidity essential for indoor comfort? It affects how we perceive temperature and can impact heating, cooling, and health. We have several ways of expressing atmospheric moisture content, but the two most common are dew-point temperature and relative humidity. The absolute humidity of air can vary depending on temperature and pres How does a relative humidity calculator work. Online calculator with Saturated Humid Air Table. Absolute humidity To find the amount of water vapor (moisture) in the air, users can utilize the above formula for paperwork calculation or use this relative humidity calculator with the known input values of atmospheric temperature and dewpoint of air. 48%. The ideal dewpoint temperature is anywhere between -4. The value for absolute humidity is returned as part of the results of the calculation, but it is relative humidity that is widely used in everyday life and is used as part of the calculation of dew point temperature. The calculator can accept two sets of inputs: either temperature and relative humidity or the current and maximum humidity ratios. The calculator will display the actual vapor pressure (2856 Pa) and the absolute humidity (20. Relative Humidity RH (%) The humidity calculator / moisture calculator converts between different humidity parametrs (relative humidity, dew point, frost point, saturation (equillibrium) vapor pressure, absolute humidity, specific humidity, mixing ratio, enthalpy, wet bulb temperature, dry bulb temperature etc. If the air temperature is 25°C and the Apr 27, 2024 · The VPD chart calculator allows you to use either relative humidity & air temperature or dewpoint to calculate your vapor pressure deficit. Heating your house tends to make the air excessively dry. Type the dew point temperature as 70 °F (~21. When air is at its maximum (100 %) humidity, the wet-bulb temperature is equal to the normal air temperature (dry-bulb temperature). Vaisala Humidity Calculator includes calculation and conversion for: Relative humidity; Wet-bulb temperature; Enthalpy; Water concentration; Dew point temperature; Absolute humidity; Water vapor pressure Our free dew point calculator calculates and converts dp to ppmv, ppm to mgm3, dp to ppm, relative humidity, molecular weight (Air, 02, N2, H2, C02, CO and more Gases), Wet-bulb temperature, ppmV, Water Activity, and more. Use this calculator on your workout and race days days to adjust your goal pace Jun 15, 2024 · Humidity Ratio (W): Calculate the humidity ratio, which is the mass of water vapor per unit mass of dry air (kg of water vapor/kg of dry air). If you click on the advanced mode, you can calculate other parameters such as: The globe thermometer temperature; The Wet-Bulb Globe Temperature (outdoor); and; Wet-Bulb Globe Temperature (indoor). For further information on these parameters, check out the dew point calculator. Moisture Content Calculation Calculate the moisture content in products like wood on wet and dry basis. Includes 53 different calculations. Apr 26, 2024 · What is the Temperature Humidity Index (THI)? The Temperature Humidity Index (THI) is a measure that combines ambient temperature and relative humidity to assess the level of stress and discomfort experienced by individuals, especially animals in a given environment. As the humidity decreases, the wet-bulb temperature becomes lower than the normal air Nov 5, 2022 · What is absolute humidity? Absolute humidity indicates the amount of water vapor in the air. 4 %. Relative Humidity RH (%) Aug 25, 2023 · Choose the appropriate calculator and enter the values. The temperature (air or dew point) can be specified in Celsius (°C), Fahrenheit (°F) or Kelvin (°K). What is Heat Index? Heat index is often referred to as humiture, and is similar to wind chill in its attempt to measure the perceived rather than the actual temperature. Temperature, expressed in degrees Celsius (°C) or Fahrenheit (°F), is a fundamental parameter dictating air comfort levels. Using the HI formula, determine the heat index using the information from The temperature changes based on the relative humidity, temperature & pressure of atmosphere. Enter dry-bulb and wet-bulb temperature of the air and click the button to calculate relative humidity. Free Psychrometric Calculator online. We usually express it in grams of water vapor per cubic meter of air (g/m³). Jul 21, 2016 · ︎ View all of our weather calculators. ). May 12, 2022 · Relative Humidity Calculator Enter a temperature and a dew point, in either Fahrenheit or Celsius. Choose the temperature unit between degrees Fahrenheit, degrees Celsius, or Kelvin; Enter the air temperature; Enter the relative humidity and click the "Calculate" button to determine the heat There is a 50 m x 20 m swimming pool with water temperature 20 o C. Air Temperature ; Humidity; Radiant Heat (heat coming from sunlight or sources such as furnaces) Air Movement (wind or ventilation) How To Calculate Wet Bulb Temperature? To calculate wet bulb temperature, determine: Dry Bulb Temperature (T): The standard air temperature; Relative Humidity (RH): The percentage of moisture in the air Oct 3, 2024 · How does temperature affect relative humidity? As temperature increases, the air's capacity to hold water vapor increases, which can decrease relative humidity if the moisture content does not change. Relative Humidity RH (%) Td = dew point temperature expressed in Celsius (°C). : The saturation vapor pressure is calculated using the temperature. Why does high humidity feel uncomfortable. Measure the temperature outside. Measure the current temperature using a thermometer. 15; approx. Support IP and SI units. g. Developed by Tim Padfield (MA in Chemistry from Oxford University, Ph. By inputting these figures, the calculator offers an exact rate, aiding in weather estimation and habitation temperature adjustments. This can be summarised as follows: Relative Humidity = 100% * Pw / Pws. FAQs on Relative Humidity Calculator: What is relative humidity used for? It helps us understand moisture levels in the air, impacting weather, health, and comfort. This dew point calculator helps you determine the dew point temperature. Who Can Use This Calculator? Enter the values of relative humidity (60%) and air temperature (32 °C). This online calculator computes the apparent temperature, taking into consideration wind speed and relative air humidity. Using wet-bulb and dry-bulb temperatures: Dry-bulb temperature: 25°C; Wet-bulb temperature: 20°C; Using a psychrometric chart, we can estimate the dew point to be around 17°C. Enter dry bulb temperature, plus either wet bulb temp, %RH or dewpoint temp Relative Humidity % Dewpoint temp °C To calculate air psychrometric properties - Enter dry-bulb temperature (T) and any one of others. Humidity Calculator on PST Website Apr 16, 2024 · This calculator can assist them in determining the relative humidity based on dew temperature and air temperature. Relative Humidity Calculator (from Dew Point)Enter in the air temperature (T air) and dew point temperature (T dp) in degrees Fahrenheit (o F) or Celcius (o C, second row), then click "Calc RH" to compute the relative humidity (RH). Example of a Dew Point Calculation. The relative humidity is derived from the ratio of the actual vapor pressure to the saturation vapor pressure. The calculator below uses this formula to calculate humindex by air temperature and dew point. 2) Enter values in 2 of the 3 boxes. The Wet Bulb Temperature Calculator uses the following inputs: Dry Bulb Temperature (°C or °F) → The actual air temperature measured with a thermometer. Outside temperature: °C: Relative humidity outside: % Calculated grams of H 2 O per kg of air:: With the following fields you can calculate the (new) relative humidity is the outside air is heated in a closed space (room, office, factory hall e. Using Dew Point Temperature: Using Relative Humidity: Air Temperature o F o C: The above calculation can be used to demonstrate a perennial winter problem in colder climates. 7530 is a rounded constant based on the molecular weight of water, latent heat of vaporization, and the universal gas constant. Oct 12, 2024 · Example 1: If the air temperature is 25°C and the dew point is 15°C, the Relative Humidity Calculator might indicate a relative humidity of 57%. Note: This calculator makes approximations that limit its use to the natural climate near sea level. D. This calculator works well with input values in either degrees Fahrenheit or degrees Celsius scale. Use this Heat Index Calculator to calculate the heat index (HI) based on air temperature (T) and relative humidity (RH). Save data to Excel, CSV or Open Office File Format. 8 °F. Printable Charts: Temperature to Heat Index. The following Humidex-Based Heat Stress Calculator from OHCOW uses temperature and humidity percentage (%) to calculate humidex and provides recommended actions. 014659 kg/kg. Some theory and formulas can be found below the calculator. This humidity is measure as a % Finally, calculate the wet bulb. You can also calculate humidity by considering the ratio of the actual water pressure at the given temperature and the saturated water vapour pressure. Humidity Calculator on PST Website The first calculator converts relative humidity to absolute humidity for a given temperature and barometric pressure. Dew point is the temperature below which the water vapor starts to condensate, in °C. Select the one most suitable for your calculation needs. Follow this detailed guide to accurately use the calculator. from the Technical University of Denmark). That means that above 66°F, we won’t see any condensation (dew formation). Our calculator can determine the heat index based on temperature and either relative humidity or dew point. For an example of an actual "Moist Air Specific" ton of air conditioning, input 80° dry bulb, with 51. 1 °C). Use the toggle switch to deselect the dew point temperature if unknown. It used to the temperature, Dewpoint to estimate humidity. You need to know its starting temperature and relative humidity as well as its target temperature. 005*Dry Bulb Temperature in °C+Specific Humidity*(2500+1. The calculation will then proceed with a dry air approximation. The first set of data is easy to look up, so let's go with using temperature and humidity for now. from a given value. The RH calculator will display the relative humidity as 44. While you can use complicated mathematical equations, if math is not your forte then simply look up a relative humidity calculator online. Calculate Temperature, Dewpoint, or Relative Humidity. You can convert your data with a simple click and discover the impacts on temperature and pressure. Related Wind Chill Calculator | Dew Point Calculator. Can relative humidity exceed 100%? Under typical conditions, relative humidity cannot exceed 100%. Specific humidity of moist air vs. Calculate Absolute Humidity: Use our simple online calculator to determine the absolute humidity of the air based on the temperature and relative humidity. T = air temperature considered to be in Celsius (°C). 1 °C Relative Humidity Calculation: Enter in the air temperature ( T air) and dew point temperature ( T dp) in degrees Fahrenheit ( o F ) then click on the Calculate RH to compute the relative humidity ( RH ) What is Relative Humidity? “ Relative Humidity is a measure of the amount and moisture content at a specific temperature and dew point. Fahrenheit Celsius Kelvin: Fahrenheit: RH: Celsius % Kelvin: Enter your actual station pressure (not the altimeter setting): In the chart settings (icon under the chart), you can adjust the Temperature Axis and Humidity Ratio Axis, enable and set your Comfort Area and define the Air Density. 9*Dry Bulb Temperature in °C) to calculate the Enthalpy of Moist Air, Enthalpy of Moist Air formula is defined as the total heat content of moist air per unit mass, which is a measure of the total energy of the air, including the energy associated with the temperature and May 3, 2021 · just like that i want a excel formula which will calculate the humidity by using dry and wet blub temperature readings and display it in the humidity cell Attached Files Temp chart for Online. RH = relative humidity in percent (%). Now, let's try using the above equation. Determine the relative humidity or the dew point. The formula used to calculate the saturation vapor pressure (es) is: es = 6. The maximum saturation humidity ratio in the air above the water surface is 0. Absolute humidity: If you know the absolute humidity (mass of water vapor per unit volume of air), you can calculate dew point using specialized formulas or tables. Additionally, you can use the result of this calculator in our heat index Humidity is often discussed in terms of absolute humidity and relative humidity, as it is on this calculator. The second calculator does the opposite - converts absolute humidity to relative humidity for a given temperature and barometric pressure. Dew Point to Absolute Humidity: First, convert dew point to relative humidity, then calculate absolute humidity using the formula for RH to AH. What causes “humidity” in the air? The higher humidity we have, the higher the dew point temperature will be. Calculate the volumetric flow rate with: V 3 = m 3 v 3 Enter a temperature, relative humidity and actual station pressure : Temperature: wet-bulb: unit: dewpoint. 5° C to 15. For example, an air temperature of 83°F with a relative humidity of 70% would result in an estimated 88°F perceived Enter the air temperature as 95 °F (35 °C). Measure the temperature using an accurate thermometer. Where AH is the absolute humidity ; Pw is the water vapor pressure ; R is the gas constant for water vapor (461. The ideal heat index ranges from 80 degrees Fahrenheit to 101 degrees Fahrenheit with relative humidity ranges from 40% to 100%. To calculate humidity use this Relative Humidity Formula: Example: When the ambient temperature (in celsius) is 35 degrees, dew point is 30 degrees, the approximate relative humidity is: Approximate Relative Humidity = 75% Relative humidity, dew point, and temperature are related to one another. This measurement is used in HVAC (heating, ventilation, and air conditioning), weather forecasting, and many industrial applications. Here are some formulas you The dewpoint temperature is the temperature at which the humidity ratio is equal to the humidity ratio at saturation: W s (p, t d ) = W Relative Humidity, RH%: The ratio of water vapor in the air to the maximum amount of water vapor the air can hold at a given temperature. The temperature in the mixed air can be found in the diagram where the enthalpy line - 35 kJ/kg - crosses the The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. Feb 18, 2023 · Welcome to the wet-bulb calculator, a tool that will let you calculate the wet-bulb temperature by inputting the air temperature and relative humidity. . T dew = dew point temperature in degrees Celsius (°C), T = air temperature in degrees Celsius (°C), RH = relative humidity (%), ln = natural logarithm. First, determine the current temperature. The calculator takes as input the air temperature and relative humidity, and calculates the heat index. Nov 9, 2023 · Updated in November 2023 to include the effect of humidity in the density altitude calculation. How to use this calculator. Here, the dewpoint temperature should be given in Kelvin; the magic number 5417. Humidity is affected by temperature. Our air density calculator is able to use one of these values to compute the other, or you can also use our dew point calculator. For example, if we have a dry bulb temperature of 20℃ and a wet bulb temperature of 15℃ what is the relative humidity? Using the calculator, we see that this is 58. Nov 11, 2024 · The Wet Bulb Calculator is a valuable tool for calculating the wet bulb temperature, which combines air temperature and humidity levels to indicate cooling capacity in the air. Heat index is a function of air temperature and humidity. 8 KB, 97 views) Download Feb 6, 2025 · Dyno Correction Factor Calculator . Next, determine the current relative humidity. Enter a temperature that you would like and choose your units: What the temperature feels like to your body: Fahrenheit Celsius ° F: Enter your relative humidity: Calculate Temperature, Dewpoint, or Relative Humidity. As temperature rises, air can retain more humidity in vapor form, as evidenced by increased moisture content (g/kg or gr/lb) at higher temperatures while maintaining the same relative humidity. Using the Relative Humidity Calculator. Temperature Dew Point °F °C °F °C Specific humidity (ω). This information can be used to make informed decisions related to outdoor activities, such as scheduling work or leisure activities, and to monitor potential heat-related health risks, especially during extreme heat events. How to calculate wet bulb temperature. This Correction Factor Calculator determines the dyno correction factor which is to be multiplied by the actual dyno data in order to correct for the effects of temperature, barometric pressure, humidity, and altitude. Calculate VPD using wet-bulb temperature If you are using dry- and wet-bulb temperature measurements instead of relative humidity, you can still calculate vapor pressure deficit. You can also use this tool to calculate air temperature and dew point. The Rotronic Humidity Calculator calculates various humidity parameters such as dew point, frost point, vapor concentration, water vapor content, relative humidity, enthalpy, etc. Absolute humidity, measured in grams per cubic meter (g/m³), provides a direct measure of the actual amount of water vapor present in the air, which is crucial for various applications in meteorology, environmental monitoring, and indoor Vaisala Humidity Calculator includes 2 calculation modes: basic and advanced. A convenient, precise and customizable psychrometric chart & calculator tool for HVAC engineers. Let's say we have an air temperature of 20°C (68°F) and relative humidity of 70%. The Relative Humidity Calculator is a tool designed to help you determine various characteristics of the air’s moisture content based on temperature, dew point, and atmospheric pressure. 0098 kg/kg - check Mollier diagram. Wondering how to calculate wet-bulb temperature? Take a wet wick and tie it around the bulb of the thermometer. Relative Humidity (%) → The percentage of moisture present in the air compared to the maximum it can hold at that temperature. 5° C to avoid discomfort of human beings, however, the ideal value of dew point will change based on relative humidity, temperature & pressure of atmosphere. You can easily calculate the dew point from relative humidity and temperature. Your degree of comfort depends upon the relative humidity. How to Use: Step 2 — Preservation Evaluation Psychrometric Calculator . 5) T is the temperature (C) To calculate the absolute humidity, divide the water vapor pressure by the product of the gas constant and air temperature. The RH Calculator allows the users to know the RH at a specific temperature unit. These calculations are derived from SAE J1349 Revision AUG2004. You can calculate the dew point temperature by inputting the air temperature and relative humidity. It uses the Australian Bureau of Meteorology formula So, the calculator about Wind Chill Index can tell us how cold the wind is. Next, determine the current temperature. Axes: By adjusting the ranges, you can focus on just a part of the diagram. Finally, calculate the heat index. 278 g/m 3). 25"wc entering and 0. As the temperature of the air rises, the relative humidity falls. Wet bulb temperature definition: is the lowest temperature (T wb) to which air can be cooled by adding evaporating water into the air, considering constant pressure. Learn how to measure relative Relative Humidity = 100% * Current Absolute Humidity / Max Absolute Humidity. A humidity calculator tells us how humid the air is by looking at the temperature and how much water is in the air. Return to the top. In other words, it's the amount of moisture in the air compared to what the air can maximally "hold" at that temperature: relative humidity = 100% × current absolute humidity / max absolute humidity …at the current temperature. Absolute Humidity: The Rotronic Humidity Calculator calculates various humidity parameters such as dew point, frost point, vapor concentration, water vapor content, relative humidity, enthalpy, etc. We can calculate the dew point temperature as follows: The humidity calculator quickly estimates relative humidity with formula. US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service El Paso, TX 7955 Airport Rd Santa Teresa, NM 88008 (575) 589-4088 Home; Engineering; Meteorology; Real feel heat index (HI) calculator to find the apparent air temperature which combines relative humidity & air temperature. Using the current temperature and the humidity, calculate the wet-bulb temperature. The tool has an inbuilt temperature conversion option that allows you to input the temperature in other units. humidity h enthalpy Tw wet bulb Calculate the mass flow, enthalpy, and humidity ratio of the mixed air stream using these expressions: m 1 h 1 + m 2 h 2 = m 3 h 3 m 1 + m 2 = m 3 m 1 ω 1 + m 2 ω 2 = m 3 ω 3. Using the calculator linked above, determine the relative humidity. Calculate the relative humidity of air using the temperature and dew point with an online calculator. Additionally, this calculator accommodates the dew point temperature as an input, allowing you to calculate either the air temperature or relative humidity. Relative Humidity Calculation. How to Calculate Relative Humidity (RH)? Feb 18, 2023 · Calculate the dew point, given the air temperature and relative humidity; Predict the air temperature corresponding to some specific relative humidity and dew point. Equations displayed for easy reference. 7% relative humidity as the leaving air, 0 feet for altitude, 400 Entering actual CFM for air flow, 0. Example: At 80°F temperature and 60% humidity levels the dew point is 66°F. On/Off or customizable. Example 2: With an air temperature of 20°C and a dew point of 10°C, the calculator could show a relative humidity of 50%, demonstrating the tool's practical application in determining the moisture Vapor Pressure Calculator. Air temperature. rain, dew) does not count. 01 kg/kg - intersect. Relative humidity is the amount of water vapor in the air. 1) Choose a temperature scale. Relative Humidity in Production and Process Environments Jul 28, 2022 · Welcome to the dew point calculator, a tool that will let you know what is the dew point (also known as dewpoint) in the environment, given the temperature and relative humidity. Calculate thermodynamic properties based on dry bulb temperature, relative humidity and pressure at 1 bar or 14. The dewpoint is one of the most relevant properties in thermodynamics, present in many applications , such as: The Rotronic Humidity Calculator calculates various humidity parameters such as dew point, frost point, vapor concentration, water vapor content, relative humidity, enthalpy, etc. The "virtual" mixing point in the Mollier diagram is where the enthalpy line - 35 kJ/kg and the humidity ratio line - 0. 112 * exp((17. 5 psi. We can assume it's as high as 95 °F. Oct 3, 2024 · \( DP \) is the dew point temperature (°C). There's more than one way to calculate relative humidity. ) Humidity Calculator. Comfort Area: This is the range of the desired Temperature and Humidity. (Note: absolute temp = Celcius + 273. Calculate humidity attributes using temperature, relative humidity and pressure. If you want to calculate relative humidity, just enter the values of absolute humidity and temperature. The relative humidity indicates the proportion of the highest possible saturation. So if you open your window the cold humid air from outside will enter inside, but when it comes back up to temperature it may be less humid than the air was inside. Looking again at today's weather report, you see that it's 68 ºF (20 ºC) with a relative humidity of 70%. The easiest way to do this is entering the dry and wet bulb temperatures into the calculator above and then click calculate. With air temperature 25 o C and 50% relative humidity the humidity ratio in the air is 0. How the Wet Bulb Temperature Calculator Works. With the DKS humidity calculator, the parameters volume fractions trace moisture [ppmV], relative humidity RH [in %] and the dew point temperature Tdp [in °C] in the range -70 to +100 °C can be approximately converted. relative humidity, water vapor and air density. Calculate air’s relative humidity after changing its temperature. Step 1: Enter Air Temperature Racing in Hot Weather? Now you can calculate exactly how much heat is impacting your race and workout times We’ve created an online calculator that will help you plan and account for exceedingly hot temperatures during workouts or on Race Day. nqwhk ptndtl hcgyl gfhdv eyt mqwdw xicatqk wdwm ybvs yrr ybhi lzipvtk iuhz kbkzl uapm