ENERGY CONVERSION
Kilojoule to Watt-hour.
Convert kilojoule (kJ) to watt-hour (Wh), with the math explained.
1 kJ = 0.2777777778 Wh
THE MATH, MADE SIMPLE
How to convert kilojoule to watt-hour
Multiply your kilojoule value by 0.277777777778 to get the equivalent in watt-hour. Both units are normalized through the joule.
Wh = kJ × 0.277777777810 kJ = 2.77777777778 Wh
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
kJ to Wh conversion table
| Kilojoule (kJ) | Watt-hour (Wh) |
|---|---|
| 1 kJ | 0.277777777778 Wh |
| 2 kJ | 0.555555555556 Wh |
| 5 kJ | 1.38888888889 Wh |
| 10 kJ | 2.77777777778 Wh |
| 20 kJ | 5.55555555556 Wh |
| 50 kJ | 13.8888888889 Wh |
| 100 kJ | 27.7777777778 Wh |
| 500 kJ | 138.888888889 Wh |
| 1,000 kJ | 277.777777778 Wh |
About the kilojoule
The kilojoule (kJ) is a unit of energy. One kilojoule equals 1,000 joule (base unit) in this calculator.
All kilojoule conversionsAbout the watt-hour
The watt-hour (Wh) is a unit of energy. One watt-hour equals 3,600 joule (base unit) in this calculator.
All watt-hour conversionsCommon questions
What is 1 kJ in Wh?
One kilojoule equals 0.277777777778 Wh. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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