Weather & Environmental Monitoring Calculators

Weather, climate, air quality and environmental monitoring.

17 tools · 100% Free · Works Offline

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Absolute Humidity CalculatorConvert relative humidity and temperature into absolute humidity in grams per cubic metre with…

Beaufort Scale CalculatorConvert wind speed to Beaufort scale force and sea state description, or the reverse, with this…

Wind Chill CalculatorCalculate wind chill temperature from air temperature and wind speed to see how cold it…

Heat Index CalculatorCalculate the heat index or feels-like temperature from air temperature and humidity, free and…

All Weather & Environmental Monitoring Calculators (17)

Guide to Weather Calculators

These tools turn raw weather readings into the derived figures that growers, HVAC and building crews, pilots, outdoor workers and safety planners actually act on. The catch is that "temperature" alone rarely answers the question: heat stress needs humidity, frost risk needs dew point, and pump or spray decisions depend on evapotranspiration and vapour pressure deficit rather than the thermometer. Pick by the decision you're making, not by the single reading you have to hand.

Heat and cold stress on people

Use Wind Chill when it's cold and windy, Heat Index in hot humid conditions, and Apparent Temperature when you want a single feels-like figure that folds in both wind and humidity for outdoor work planning.

Wind Chill Calculator Heat Index Calculator Apparent Temperature Calculator Dew Point Calculator

Humidity and moisture in the air

Reach for Dew Point or Absolute Humidity when you need the actual moisture content, and the Wet & Dry Bulb tool when all you have is a sling psychrometer reading to convert into relative humidity.

Dew Point Calculator Absolute Humidity Calculator Humidity from Wet & Dry Bulb Calculator Apparent Temperature Calculator

Growing, irrigation and frost

Vapour Pressure Deficit and Evapotranspiration drive glasshouse ventilation and irrigation scheduling, while Frost Risk and Rainfall Intensity flag when to protect crops or size drainage.

Vapour Pressure Deficit (VPD) Calculator Evapotranspiration (Hargreaves) Calculator Frost Risk Temperature Calculator Rainfall Intensity Calculator Degree Days Calculator

Wind, air and sky

Convert observed conditions to a Beaufort force, adjust wind speed from one measurement height to another, or estimate air density and cloud base for aviation and turbine work.

Beaufort Scale Calculator Beaufort Wind Scale Calculator Wind Speed at Height Calculator Air Density Calculator Cloud Base Height Calculator

Storms and energy demand

Estimate how far away lightning struck from the flash-to-thunder gap, and use Degree Days to plan heating or cooling energy over a season.

Lightning Distance Calculator Degree Days Calculator Beaufort Wind Scale Calculator

Important calculation notice

These calculators are intended for education, estimation and preliminary checks. Verify all inputs, units, assumptions, material properties and applicable standards. Safety-critical or final engineering designs should be checked by a suitably qualified professional.

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Weather & Environmental Monitoring Calculators

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All Weather & Environmental Monitoring Calculators (17)

Wind & Sky7 calculators

Temperature & Humidity4 calculators

Feels-Like & Comfort3 calculators

Rainfall & Agronomy3 calculators

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