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Wh to kJ Converter

Convert watt-hour (Wh) to kilojoule (kJ). Enter a value for an instant result, or use the examples and reverse conversion below.

520units ready to convert
ENERGY

Energy & work

Mechanical, electrical, thermal and particle energy.

Wh
kJ

Try a decimal, 1e-9, 1/3, or 5 1/2.

Result3.6 kJ1 Wh = 3.6 kJ
HOW IT IS CALCULATED

Convert through joule

Enter a watt-hour value to calculate kilojoule with full internal precision before display rounding.

Display PrecisionAuto · 6 significant digits

Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.

QUICK REFERENCE

All units in this quantity

UnitSymbolConverted value
ergfrom Wherg36000000000
microjoulefrom WhµJ3600000000
millijoulefrom WhmJ3600000
joulefrom WhJ3600
kilojoulefrom WhkJ3.6
megajoulefrom WhMJ0.0036
gigajoulefrom WhGJ0.0000036
watt-hourfrom WhWh1
kilowatt-hourfrom WhkWh0.001
megawatt-hourfrom WhMWh0.000001
thermochemical caloriefrom Whcalₜₕ860.421
thermochemical kilocaloriefrom Whkcalₜₕ0.860421
International Table caloriefrom WhcalIT859.845
International Table British thermal unitfrom WhBtuIT3.41214
U.S. thermfrom Whtherm US0.0000341296
foot pound-forcefrom Whft·lbf2655.22
electronvoltfrom WheV2.24694e22
kiloelectronvoltfrom WhkeV2.24694e19
megaelectronvoltfrom WhMeV2.24694e16
gigaelectronvoltfrom WhGeV22469400000000
ton of TNTfrom Wht TNT0.000000860421

SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.

Wh to kJ Conversion Reference

Watt-hour (Wh) and kilojoule (kJ) are units of energy & work. Use this page to convert in either direction.

Conversion Examples

Watt-hour to Kilojoule
Watt-hour (Wh)Kilojoule (kJ)
1 Wh3.6 kJ
5 Wh18 kJ
10 Wh36 kJ
100 Wh360 kJ

Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.

Reverse Conversion

kJ to Wh (kilojoule to watt-hour)

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