Wind Chill Calculator
Calculate the perceived wind chill temperature using NWS formulas. Get frostbite risk categories, estimated exposure time limits, and wind unit conversions.
Inputs Configuration
Calculation Output Status
Successfully Solved
How Wind Chill Calculator Works
Use our winter weather feels-like tool to analyze absolute cold and convection impacts.
Enter Air Temperature
Provide the ambient air temperature measured by standard outdoor thermometers.
Provide Wind Speed
Enter the velocity of the air currents blowing across the local area.
Select Velocity Unit
Toggle between miles per hour, kilometers per hour, knots, or meters per second.
Wind Chill Index Formulas
Understand the physical and biological parameters that influence skin temperature drop rates.
Calculate Feels-Like Temperature
Solve standard NWS formulas that model human heat loss under varying convection velocities.
Determine Frostbite Risk
Identify risk levels (low, moderate, high, or extreme) based on standardized wind chill index ranges.
Check Exposure Time Limits
Review NWS warning timers indicating how many minutes it takes for exposed skin to freeze.
Fahrenheit and Celsius Conversion
Convert inputs and outputs dynamically between imperial and metric temperature systems.
Frequently Asked Questions About Wind Chill
Frequently Asked Questions
Is this wind chill calculator free?
Yes. Calculate wind chill indexes and frostbite risks with no registration.
Does wind speed affect absolute temperature?
No. Wind speed increases the rate of heat loss but does not lower the physical air temperature.
How is NWS wind chill calculated?
The National Weather Service uses standard math equations that combine air temperature and wind speed inputs.
Does this include frostbite risk warnings?
Yes. Calculate wind chill with NWS formulas plus frostbite risk categories and exposure limits.