Weather Tools and Calculators for Wind, Rain, Heat and Humidity
Convert forecast units or calculate heat index, wind chill and dew point. Each free tool renders a worked starting value and updates when you change an input.
Choose the measurement you need
Convert a unit or calculate how weather feels
Convert the units printed in a forecast or calculate what the conditions mean for the human body. Every tool starts with a worked value in the server-rendered page, then updates instantly when you change an input.
For air temperature itself, use the Celsius, Fahrenheit, Kelvin and Rankine converters.
Weather unit converters
Translate the measurements used by forecasts, weather stations and climate tables.
Feels-like and moisture calculators
Combine temperature, wind and moisture to interpret conditions rather than merely convert a unit.
Which weather tool should I use?
| Question | Tool |
|---|---|
| How hot does humidity make the air feel? | Heat index calculator |
| How cold does wind make exposed skin feel? | Wind chill calculator |
| What is the dew point or relative humidity? | Dew point calculator |
| How many inches is a rainfall total in millimetres? | Rainfall converter |
| How do hPa, inHg, millibars and psi compare? | Pressure converter |
| How do mph, km/h, knots and m/s compare? | Wind speed converter |
How these tools fit a weather report
Wind speed, pressure and rainfall converters translate observations without changing their meaning. Dew point and humidity tools describe moisture. Heat index and wind chill combine measurements to estimate how conditions feel under the assumptions explained on each calculator page. Use the matching guide beside a result when you need thresholds, limitations or safety context.