Unit converter

Enter a value in the box on the left and click the button at the right to convert.

Avoid using commas and symbols.

Temperature Conversion

Convert between degrees Fahrenheit ( °F ) and degrees Celsius ( °C )

Distance Conversion

Convert between miles ( mi. )* and kilometers ( km )

Convert between feet ( ft. ) and meters ( m )

Convert between nautical miles ( Nm ) and kilometers ( km )

Convert between nautical miles ( Nm ) and miles ( mi.)

* Miles (mi) = statute/land miles.

Speed and Wind Conversion

Convert between miles per hour ( mph ) and knots ( kts. )

Convert between knots ( kts. ) and meters/second ( m/sec )

Weight/Mass/Volume Conversions

Convert between pounds ( lbs. ) and kilograms ( kg )

Convert between gallons ( gal. ) and liters ( l )

For the options below, choose a Specific Gravity ›

Relative Humidity Calculation

Enter air temperature ( Tair ) and dew point temperature ( Tdp ) in degrees Fahrenheit ( °F )

Wind Chill Calculation

Enter air temperature ( T air ) in degrees Fahrenheit and wind speed in mph

Heat Index Calculation

Enter air temperature ( Tair ) in degrees Fahrenheit and relative humidity (RH) in percent

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