Unit Converters

Energy Converter

Convert between 11 energy units including joules, kilojoules, megajoules, calories and more. Accurate factors, instant results.

Enter values

Result

Kilojoules

3,600 kJ

1 kWh = 3,600 kJ

1 kWh in every energy unit

Unit	Value
Joules (J)	3,600,000
Kilojoules (kJ)	3,600
Megajoules (MJ)	3.6
Calories (cal)	860,420.65
Kilocalories (food Calories) (kcal)	860.4207
Watt-hours (Wh)	1,000
Kilowatt-hours (kWh)	1
British thermal units (BTU)	3,412.14
Therms (thm)	0.034121
Foot-pounds (ft·lb)	2,655,223.7
Electronvolts (eV)	2.246943 × 10^25

About the Energy Converter

Convert between 11 energy units including joules, kilojoules, megajoules, calories and more. Accurate factors, instant results.

Also known as: energy unit converter, energy conversion, joule converter, calorie converter, convert energy units.

How to use this calculator

Enter value, from, to.
The result updates instantly as you type — press Calculate (or Enter) at any time.
Review the breakdown shown under the main result.
Use Copy result or Share to save the answer or send a link with your inputs.

Worked example

Using the values pre-filled in the calculator above:

Value = 1
From: Kilowatt-hours (kWh)
To: Kilojoules (kJ)

the calculator returns:

Kilojoules: 3,600 kJ