On this page you will find nine types of energy related unit converters, those are unit converters for:

Here you can make conversions of the most commonly used units between the metric and the imperial systems.

The energy converter, converts to and from: Joule, Kilojoule, Megajoule, Gigajoule, Petajoule and Exajoule, Watt – hour, Kilowatt – hour and Megawatt – hour, Ampere – hour, Newton – metre, Kilopond metre, Calorie and Kilocalorie and Btu.

** Calculate CO _{2} emissions from various fuels, get the chemical formula for common fuels, generate combustion equations. Try our energy calculators**

The power converter, converts to and from: Watt, Kilowatt, Horsepower and Newtom metre.

The length converter, converts to and from: Ångstrøm, Nanometre, Micrometre, Millimetre, Centimetre, Decimetre Metre and Kilometre, Inch, Foot, Yard and Mile.

The area converter, converts to and from: Square Millimetre, Square Centimetre, Square Decimetre, Square metre and Square Kilometre, Square Inch, Square Foot, Square yard and Acre.

The volume converter, converts to and from: Cubic Millimetre, Cubic Centimetre, Litre, Cubic metre, Cubic Inch and Cubic Foot, Gallon and Barrel.

The weight and mass converter, converts to and from: Picogram, nanogram, Microgram, Milligram, Gram Hectogram, Kilogram and Ton, Pound and Ounce.

The temperature converter, converts to and from: Celsius, Kelvin and Fahrenheit.

The pressure converter, converts to and from: Millibar, Bar and Atmosphere, Pound, Pascal, Kilopascal and Newton.

The speed converter, converts to and from: Metre per second, Kilometres per hour, Miles per hour, Speed of light, Mach (Speed of Sound).