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Kilowatt-hours to joules converter

Convert kilowatt-hours (kWh) to joules (J).

Energy converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

kWh

J

CONVERSION

1 kWh ≈ 3600000 J

Precision changes displayed rounding, not calculation accuracy.

FORMULAJ = kWh × 3600000

FORMULA & EXAMPLES

How to convert Kilowatt-hours to joules

J = kWh × 3600000

Multiply the kWh reading by 3600000.

Worked examples

1 kWh ≈ 3600000 J

1 × 3600000 ≈ 3600000

10 kWh ≈ 36000000 J

10 × 3600000 ≈ 36000000

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 joules table

Fixed reference · Kilowatt-hour to Joule

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

Kilowatt-hour (kWh)Joule (J)
00
0.1360000
0.51800000
13600000
27200000
518000000
1036000000
2590000000
50180000000
100360000000
10003600000000
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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