Unitvale

Wh to kJ converter

1 watt-hour equals 3.6 kilojoules. Conversions use kJ = Wh × 3.6

Wh → 3.6 kJ
kJ = Wh × 3.6

Converter

Worked examples

watt-hours to kilojoules conversion table

WhkJArithmetic
1 Wh3.6 kJ× 3.6
2 Wh7.2 kJ× 3.6
3 Wh10.8 kJ× 3.6
4 Wh14.4 kJ× 3.6
5 Wh18 kJ× 3.6
6 Wh21.6 kJ× 3.6
8 Wh28.8 kJ× 3.6
10 Wh36 kJ× 3.6
12 Wh43.2 kJ× 3.6
15 Wh54 kJ× 3.6
20 Wh72 kJ× 3.6
25 Wh90 kJ× 3.6
30 Wh108 kJ× 3.6
40 Wh144 kJ× 3.6
50 Wh180 kJ× 3.6
60 Wh216 kJ× 3.6
70 Wh252 kJ× 3.6
80 Wh288 kJ× 3.6
90 Wh324 kJ× 3.6
100 Wh360 kJ× 3.6

How to convert Wh to kJ

  1. Take your value in watt-hours.
  2. Multiply by 3.6
  3. That is your answer in kilojoules — no rounding needed until you choose a display precision.

Related conversions

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Questions

How many kilojoules in 1 watt-hour?
Exactly 3.6 kJ. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert Wh to kJ?
Multiply the watt-hours figure by 3.6 — or use the converter above, which updates as you type.
Is Wh to kJ the same as kJ to Wh?
No — they are inverses. One Wh is 3.6 kJ, while one kJ is 0.27777778 Wh.
What is 1 Wh in kJ?
1 Wh = 3.6 kJ (see the value page for the full arithmetic).