Kilojoules to Watt hours
One kilojoule is 0.2777778 watt hours. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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1 kilojoule = 0.2777778 watt hours · open this conversion
Formula
watt hours = kilojoules × 0.277777778
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
Kilojoules to Watt hours table
| Kilojoules | Watt hours |
|---|---|
| 1 kJ | 0.2777778 Wh |
| 2 kJ | 0.5555556 Wh |
| 5 kJ | 1.388889 Wh |
| 10 kJ | 2.777778 Wh |
| 20 kJ | 5.555556 Wh |
| 25 kJ | 6.944444 Wh |
| 50 kJ | 13.88889 Wh |
| 100 kJ | 27.77778 Wh |
| 150 kJ | 41.66667 Wh |
| 200 kJ | 55.55556 Wh |
| 250 kJ | 69.44444 Wh |
| 300 kJ | 83.33333 Wh |
| 400 kJ | 111.1111 Wh |
| 500 kJ | 138.8889 Wh |
| 600 kJ | 166.6667 Wh |
| 800 kJ | 222.2222 Wh |
| 1,000 kJ | 277.7778 Wh |
| 1,500 kJ | 416.6667 Wh |
| 2,000 kJ | 555.5556 Wh |
| 2,500 kJ | 694.4444 Wh |
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Other energy conversions
⇄ Watt hours to KilojoulesKilojoules to JoulesKilojoules to CaloriesKilojoules to KilocaloriesKilojoules to Kilowatt hours
Frequently asked questions
▸How many watt hours are in a kilojoule?
One kilojoule is 0.2777778 watt hours. watt hours = kilojoules × 0.277777778.
▸How do I convert kilojoules to watt hours?
Multiply the number of kilojoules by 0.277777778. For example, 10 kJ × 0.277777778 = 2.777778 Wh.
▸What is the difference between kilojoules and watt hours?
Kilojoule (kJ) and Watt hour (Wh) both measure energy. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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