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Watt-hours to joules converter

Convert watt-hours (Wh) to joules (J).

Energy converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

Wh

J

CONVERSION

1 Wh ≈ 3600 J

Precision changes displayed rounding, not calculation accuracy.

FORMULAJ = Wh × 3600

FORMULA & EXAMPLES

How to convert Watt-hours to joules

J = Wh × 3600

Multiply the Wh reading by 3600.

Worked examples

1 Wh ≈ 3600 J

1 × 3600 ≈ 3600

1000 Wh ≈ 3600000 J

1000 × 3600 ≈ 3600000

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.

Watt-hours to joules table

Fixed reference · Watt-hour to Joule

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

Watt-hour (Wh)Joule (J)
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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