Watt-hours to Kilojoules Converter
Convert Wh to kJ instantly — and see every other energy unit at once.
1 Wh=3.6 kJ
1 Wh in every unit
Joules
3,600J
Kilojoules
3.6kJ
Megajoules
0.0036MJ
Watt-hoursfrom
1Wh
Kilowatt-hours
0.001kWh
Calories (small)
860.4207cal
Kilocalories (kcal)
0.860421kcal
BTU
3.4121BTU
Electronvolts
22,469,432,668,058,747,000,000eV
Foot-pounds
2,655.22ft·lb
Common Watt-hours to Kilojoules conversions
| Watt-hours (Wh) | Kilojoules (kJ) |
|---|---|
| 1 Wh | 3.6 kJ |
| 2 Wh | 7.2 kJ |
| 5 Wh | 18 kJ |
| 10 Wh | 36 kJ |
| 25 Wh | 90 kJ |
| 50 Wh | 180 kJ |
| 100 Wh | 360 kJ |
| 250 Wh | 900 kJ |
| 500 Wh | 1800 kJ |
| 1000 Wh | 3600 kJ |
The formula
Watt-hours (Wh) — a unit of energy.
Kilojoules (kJ) — a unit of energy.
Worked examples
1 Wh→3.6 kJ
Apply Watt-hours × 3.6 with input = 1. Result: 3.6 kJ.
5 Wh→18 kJ
Apply Watt-hours × 3.6 with input = 5. Result: 18 kJ.
10 Wh→36 kJ
Apply Watt-hours × 3.6 with input = 10. Result: 36 kJ.
FAQ
How do I convert Watt-hours to Kilojoules?
Use the formula: kJ = Watt-hours × 3.6. You can also use the converter above — type any value and the result updates instantly.
Where are Watt-hours used?
Watt-hours (Wh) — a unit of energy.
Where are Kilojoules used?
Kilojoules (kJ) — a unit of energy.
How do I convert Kilojoules back to Watt-hours?
Use the Kilojoules to Watt-hours converter.