Converting Free

Unit ConverterRight in Your Browser

Convert between the units people actually use — lbs to kg, cm to inches, celsius to fahrenheit, ml to oz and dozens more. Each converter shows the formula and a common-values chart. Everything is calculated locally on your device: no server, no tracking, works offline.

Weight & Mass

Pounds, kilograms, stone, grams, ounces and more.

Lbs to Kg Kg to Lbs Kg to Stone Stone to Kg G to Oz Oz to G Lbs to Stone Stone to Lbs Mg to G G to Mg Oz to Lbs Lbs to Oz G to Kg Kg to G Kg to Tonnes Tonnes to Kg Oz to Kg Kg to Oz Lbs to G G to Lbs

Length & Distance

Centimeters, inches, feet, meters, kilometers and miles.

Temperature

Celsius, Fahrenheit and Kelvin.

Celsius to Fahrenheit Fahrenheit to Celsius Celsius to Kelvin Kelvin to Celsius Fahrenheit to Kelvin Kelvin to Fahrenheit

Volume & Cooking

Liters, gallons, milliliters, fluid ounces, cups and spoons.

Speed

Km/h, mph, knots and meters per second.

Kmh to Mph Mph to Kmh Knots to Mph Mph to Knots Ms to Kmh Kmh to Ms Kmh to Knots Knots to Kmh Ms to Mph Mph to Ms Knots to Ms Ms to Knots Mph to Fps Fps to Mph Fps to Kmh Kmh to Fps Fps to Ms Ms to Fps

Area

Square feet, square meters, acres and hectares.

Sqft to Sqm Sqm to Sqft Acres to Hectares Hectares to Acres Sqm to Sqyd Sqyd to Sqm Acres to Sqft Sqft to Acres Sqm to Hectares Hectares to Sqm Sqmi to Sqkm Sqkm to Sqmi Sqyd to Sqft Sqft to Sqyd

Data Storage

Bits, bytes, kilobytes, megabytes, gigabytes and terabytes.

Kb to Mb Mb to Kb Mb to Gb Gb to Mb Gb to Tb Tb to Gb Kb to Gb Gb to Kb Mb to Tb Tb to Mb Bits to Bytes Bytes to Bits Bytes to Kb Kb to Bytes Bytes to Mb Mb to Bytes Bytes to Gb Gb to Bytes

Time & Duration

Milliseconds, seconds, minutes, hours, days and weeks.

Ms to Seconds Seconds to Ms Seconds to Minutes Minutes to Seconds Minutes to Hours Hours to Minutes Hours to Days Days to Hours Days to Weeks Weeks to Days Seconds to Hours Hours to Seconds Ms to Minutes Minutes to Ms Seconds to Days Days to Seconds

Pressure

Psi, bar, kilopascals, atmospheres and mmHg.

Energy

Calories, kilojoules, kilowatt-hours and BTU.

Cal to Kj Kj to Cal Kcal to Kj Kj to Kcal Btu to Kj Kj to Btu Kwh to Btu Btu to Kwh Kwh to Kj Kj to Kwh J to Kj Kj to J Cal to J J to Cal Kcal to Cal Cal to Kcal

Power

Horsepower, kilowatts and watts.

Hp to Kw Kw to Hp Kw to W W to Kw Hp to W W to Hp

Torque

Newton-meters, pound-feet and inch-pounds.

Nm to Lbft Lbft to Nm Nm to Inlb Inlb to Nm Lbft to Inlb Inlb to Lbft

Need a time zone instead?

Converting Free also has DST-correct converters for every common time-zone pair.

All time zone converters →