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Dew point
This calculator determines dew point from given temperature and relative humidity of air
Boiling point of pure water at elevated altitudes
This online calculator finds the water boiling temperature given the atmospheric pressure in millimeters of mercury.
Temperature scales
Conversion between different temperature scales
Wind Chill Index
This online calculator computes Wind Chill Index using Wind Chill Formula from Environment Canada
Apparent temperature
This online calculator computes the apparent temperature, taking into consideration wind speed and relative air humidity. It uses the Australian Bureau of Meteorology formula
Saturation vapor pressure
This online calculator computes saturation vapor pressure for a given temperature and atmospheric (barometric) pressure
Relative humidity to absolute humidity and vice versa calculators
The first calculator converts relative humidity to absolute humidity for a given temperature and barometric pressure. The second calculator converts absolute humidity to relative humidity for a given temperature and barometric pressure
Density of oil
Recalculation of the density of oil for different temperature and pressure values. Formulas are taken from Russia's GOST R 8.610-2004. "State system for ensuring the uniformity of measurements for the density of oil. The tables for recalculation" standard
Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.
Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.
Grain Drying with Natural Air
Calculator to determine conditions for drying grain.
Humindex
This calculator calculates Humindex, index used by Canadian meteorologists to describe how hot the weather feels to the average person, by combining the effect of heat and humidity.
Heat Index
This calculator calculates heat index (apparent temperature), which is used by US meteorologists to determine the human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in the shade.
Petroleum product density
Petroleum product density conversion, according to GOST 3900-85
Quantity of heat
This calculator can find missing values in the relationship between heat and temperature: heat added or removed, specific heat, mass, initial temperature and final temperature.
Thermodynamics – calculator for solving mixing problems
An online calculator to solve thermodynamic equilibrium problems, such as finding the final temperature when mixing fluids, or finding the required temperature for one of the fluids to achieve a final mixed temperature
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