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Convert Joule to Watt hour

1 Joule = 2.7778e-4 Watt hour · 1 Watt hour = 3,600 Joule

Exact factor — no rounding beyond display precision.

Conversion formula

1 J = 0.0002777777778 Wh  →  J = 2.7778e-4 Wh

The reverse direction: 1 Wh = 3600 J.

Quick reference

JWh
1 J2.7778e-4 Wh
2 J5.5556e-4 Wh
3 J8.3333e-4 Wh
5 J0.00138889 Wh
10 J0.00277778 Wh
20 J0.00555556 Wh
25 J0.00694444 Wh
50 J0.0138889 Wh
100 J0.0277778 Wh
250 J0.0694444 Wh
500 J0.138889 Wh
1,000 J0.277778 Wh

About these units

The Joule (J) and the Watt hour (Wh) are both units of energy. Under the standard definition, one J equals exactly 2.7778e-4 Wh. This category's SI base unit is the joule.

Other conversions from Joule

J to kJJ to calJ to kcalJ to kWhJ to eVJ to BTU