Kilowatt-hours to joules
1 kilowatt-hour in joules
1 kWh = 3,600,000 J
J = kWh × 3,600,000
To convert kilowatt-hours to joules, multiply by 3,600,000. The table below gives the values people look up most often, and the converter works for any number.
Kilowatt-hours to joules table
| Kilowatt-hours | Joules |
|---|---|
| 1 kWh | 3,600,000 |
| 2 kWh | 7,200,000 |
| 3 kWh | 10,800,000 |
| 4 kWh | 14,400,000 |
| 5 kWh | 18,000,000 |
| 10 kWh | 36,000,000 |
| 15 kWh | 54,000,000 |
| 20 kWh | 72,000,000 |
| 25 kWh | 90,000,000 |
| 30 kWh | 108,000,000 |
| 40 kWh | 144,000,000 |
| 50 kWh | 180,000,000 |
| 75 kWh | 270,000,000 |
| 100 kWh | 360,000,000 |
| 250 kWh | 900,000,000 |
| 500 kWh | 1,800,000,000 |
| 1,000 kWh | 3,600,000,000 |
How the conversion works
The relationship is J = kWh × 3,600,000. Both units measure energy, so the conversion is a fixed factor that never changes.
Common questions
- How many joules are in one kilowatt-hour?
- One kilowatt-hour equals 3,600,000 joules. J = kWh × 3,600,000.
- How do you convert kilowatt-hours to joules?
- Use J = kWh × 3,600,000. So 10 kWh is 36,000,000 J.
- How many kilowatt-hours are in one joule?
- One joule equals 2.778 × 10^-7 kilowatt-hours, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place