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Energy

Watt-hours to Calories

Convert watt-hours (Wh) to calories (cal). Type a value below to see the result update instantly. Reference table and formula included.

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Wh
⇌
cal

1 Wh = 860.42 cal

Watt-hours to Calories Conversion Table

Common values, ready to copy:

watt-hourscalories
1 Wh860.42 cal
2 Wh1720.84 cal
5 Wh4302.1 cal
10 Wh8604.21 cal
25 Wh21510.52 cal
50 Wh43021.03 cal
100 Wh86042.07 cal
1,000 Wh860420.65 cal
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Formula

calories = watt-hours × 8.60420650e+2

Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.

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