Joules to Watt-hours Converter

Convert joules (J) to watt-hours (Wh) instantly. Type a value below; the result updates as you type. 1 J = 0.000277778 Wh.

How to convert joules to watt-hours

1 J = 0.00027777778 Wh. To convert joules to watt-hours, divide the value by 3,600.

watt-hours = joules ÷ 3,600

Worked examples

  • 5 J = 0.00138889 Wh
  • 12 J = 0.00333333 Wh
  • 100 J = 0.0277778 Wh

Common joules to watt-hours conversions

How many watt-hours is 2 J?

2 J is equal to 0.000555556 Wh.

How many watt-hours is 10 J?

10 J is equal to 0.00277778 Wh.

How many watt-hours is 20 J?

20 J is equal to 0.00555556 Wh.

How many watt-hours is 50 J?

50 J is equal to 0.0138889 Wh.

How many watt-hours is 100 J?

100 J is equal to 0.0277778 Wh.

How many watt-hours is 500 J?

500 J is equal to 0.138889 Wh.

Joules to watt-hours conversion table

Joules (J)Watt-hours (Wh)
1 J0.000277778 Wh
2 J0.000555556 Wh
3 J0.000833333 Wh
4 J0.00111111 Wh
5 J0.00138889 Wh
6 J0.00166667 Wh
7 J0.00194444 Wh
8 J0.00222222 Wh
9 J0.0025 Wh
10 J0.00277778 Wh
15 J0.00416667 Wh
20 J0.00555556 Wh
25 J0.00694444 Wh
30 J0.00833333 Wh
40 J0.0111111 Wh
50 J0.0138889 Wh
75 J0.0208333 Wh
100 J0.0277778 Wh
250 J0.0694444 Wh
500 J0.138889 Wh
1,000 J0.277778 Wh

Related conversions

Frequently asked questions

How many watt-hours are in 1 joule?

1 joule (J) equals 0.000277778 watt-hours (Wh).

How do I convert joules to watt-hours?

To convert joules to watt-hours, divide the value by 3,600. For example, 5 J = 0.00138889 Wh.

How many joules are in 1 watt-hour?

1 watt-hour (Wh) equals 3,600 joules (J).

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