Heat, Cold & Humidity
Compare heat index, wind chill, dew point, relative humidity, wet bulb, WBGT, apparent temperature and humidex without treating unlike indices as interchangeable.
☀ Weather & Climate Calculator Category
Weather & Climate Calculators
Calculate heat index, wind chill, dew point, humidity, wet bulb, WBGT, apparent temperature, rainfall, snow, pressure and aviation-weather quantities with 16 transparent tools.
Showing all 16 weather and climate calculators.
Heat Index Calculator
Calculate the NOAA heat index from air temperature and relative humidity with official adjustments, risk bands and unit conversion.
Wind Chill Calculator
Calculate the U.S.–Canada wind chill index from air temperature and wind speed in common metric and customary units.
Dew Point Calculator
Calculate dew point from air temperature and relative humidity using the Magnus equation in Fahrenheit or Celsius.
Relative Humidity Calculator
Calculate relative humidity from air temperature and dew point using the Magnus saturation-vapour-pressure relationship.
Wet-Bulb Temperature Calculator
Estimate natural wet-bulb temperature from dry-bulb temperature and relative humidity using the published Stull approximation.
WBGT Calculator
Calculate indoor/shaded or outdoor Wet Bulb Globe Temperature from measured natural wet-bulb, globe and dry-bulb temperatures.
Apparent Temperature Calculator
Calculate Australian-style apparent temperature from air temperature, relative humidity and wind speed with unit conversion.
Humidex Calculator
Calculate the Canadian humidex from air temperature and dew point with Celsius and Fahrenheit input and interpretation bands.
Cloud Base Calculator
Estimate lifted condensation level and approximate cumulus cloud-base height from surface temperature and dew point.
Lightning Distance Calculator
Estimate lightning distance from the flash-to-thunder time using the speed of sound and display the five-seconds-per-mile rule.
Rainfall Intensity Calculator
Calculate average rainfall intensity from measured precipitation depth and elapsed time in inches or millimetres per hour.
Snow-to-Rain Ratio Calculator
Calculate snow-to-liquid ratio and snow water equivalent from measured snow depth and liquid precipitation.
Snow Load Calculator
Estimate uniform snow weight from snow depth and bulk density in psf and kPa for preliminary screening only.
Station Pressure Calculator
Estimate atmospheric pressure at elevation from sea-level pressure using the standard-atmosphere barometric relationship.
Pressure Altitude Calculator
Estimate pressure altitude from field elevation and altimeter setting using the standard aviation planning approximation.
Density Altitude Calculator
Estimate density altitude from pressure altitude and outside-air temperature using the standard aviation approximation.
No matching weather or climate calculator was found. Try another term or select “All.”
About Our Weather & Climate Calculators
This internationally usable collection applies published meteorological equations to user-entered observations. Every tool identifies its units, formula, validity limits, supporting values and dynamic calculation steps. The pages calculate locally and do not claim to provide live observations or forecasts.
Storms, Rain & Snow
Estimate lightning distance, average rainfall intensity, snow-to-liquid ratio and uniform snow weight from measured values.
Pressure, Clouds & Aviation
Inspect approximate cloud base, station pressure, pressure altitude and density altitude with explicit standard-atmosphere assumptions.
Weather safety notice: Use official forecasts, observations and warnings for decisions. These educational calculations do not certify safety, flight performance or structural capacity.
Weather & Climate Calculator FAQs
Yes. Every calculator runs in the browser without registration.
No. They calculate from values entered by the user; obtain current observations and warnings from an official weather service.
Yes. Each calculator provides the unit choices relevant to its published equation and intended audience.
No. Weather alerts, workplace heat programs, aircraft manuals, building codes and qualified professionals remain controlling.
No. The calculation runs locally in the browser.
Yes. Each result presents four colored details and at least five calculation steps, with extra steps where needed.