Energy Converter
Convert between J, cal, kWh, Btu, eV and ft·lb.
Input Data
Value
Source unit.
Target unit.
Results
Converted energy.
3,600
Explanatory note about the result.
1 kwh = 3600 kj
At a glance:Base is the joule: 1 kJ=1000 J; 1 cal(thermochemical)=4.184 J; 1 kcal=4184 J; 1 Wh=3600 J; 1 kWh=3.6e6 J; 1 Btu(IT)=1055.05585262 J; 1 eV=1.602176634e-19 J; 1 ft·lb=1.3558179483314 J. Convert to J first, then to the target.
Formula
J = input × source factor.
result = J ÷ target factor.
How to Use
- Enter a value, pick from/to units.
- The tool returns the converted energy.
Case Studies
1 kWh → kJ
3.6e6 J ÷ 1000 = 3600 kJ.
FAQ
Which calorie?
Uses the thermochemical calorie (1 cal = 4.184 J); the IT calorie differs slightly.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.