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Kilowatt-hours to kilojoules converter

Convert kilowatt-hours (kWh) to kilojoules (kJ).

Energy converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

kWh

kJ

CONVERSION

1 kWh ≈ 3600 kJ

Precision changes displayed rounding, not calculation accuracy.

FORMULAkJ = kWh × 3600

FORMULA & EXAMPLES

How to convert Kilowatt-hours to kilojoules

kJ = kWh × 3600

Multiply the kWh reading by 3600.

Worked examples

1 kWh ≈ 3600 kJ

1 × 3600 ≈ 3600

10 kWh ≈ 36000 kJ

10 × 3600 ≈ 36000

Frequently asked questions

Is a watt-hour the same quantity as a watt?

No. A watt-hour measures energy; a watt measures power. One watt-hour is the energy transferred at one watt for one hour, equal to 3,600 joules.

Kilowatt-hours to kilojoules table

Fixed reference · Kilowatt-hour to Kilojoule

Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.

Kilowatt-hour (kWh)Kilojoule (kJ)
00
0.1360
0.51800
13600
27200
518000
1036000
2590000
50180000
100360000
10003600000
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.

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