Watt hours to Kilojoules
One watt hour is 3.6 kilojoules. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
ad 728x90
ad 320x50
1 watt hour = 3.6 kilojoules · open this conversion
Formula
kilojoules = watt hours × 3.6
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
Watt hours to Kilojoules table
| Watt hours | Kilojoules |
|---|---|
| 1 Wh | 3.6 kJ |
| 2 Wh | 7.2 kJ |
| 5 Wh | 18 kJ |
| 10 Wh | 36 kJ |
| 20 Wh | 72 kJ |
| 25 Wh | 90 kJ |
| 50 Wh | 180 kJ |
| 100 Wh | 360 kJ |
| 150 Wh | 540 kJ |
| 200 Wh | 720 kJ |
| 250 Wh | 900 kJ |
| 300 Wh | 1,080 kJ |
| 400 Wh | 1,440 kJ |
| 500 Wh | 1,800 kJ |
| 600 Wh | 2,160 kJ |
| 800 Wh | 2,880 kJ |
| 1,000 Wh | 3,600 kJ |
| 1,500 Wh | 5,400 kJ |
| 2,000 Wh | 7,200 kJ |
| 2,500 Wh | 9,000 kJ |
native ad unit
Other energy conversions
⇄ Kilojoules to Watt hoursWatt hours to JoulesWatt hours to CaloriesWatt hours to KilocaloriesWatt hours to Kilowatt hours
Frequently asked questions
▸How many kilojoules are in a watt hour?
One watt hour is 3.6 kilojoules. kilojoules = watt hours × 3.6.
▸How do I convert watt hours to kilojoules?
Multiply the number of watt hours by 3.6. For example, 10 Wh × 3.6 = 36 kJ.
▸What is the difference between watt hours and kilojoules?
Watt hour (Wh) and Kilojoule (kJ) 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.
ad 300x250