Kilowatt-hour to Joule Converter
免费能量转换器, 即时换算焦耳、卡路里、千瓦时和英热单位
1Kilowatt-hour=3600000Joule
1 Joule = 2.777778e-7 Kilowatt-hour
Kilowatt-hour
- Symbol
- kWh
- System
- Metric/Imperial
- Dimension
- Various
Joule
- Symbol
- J
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Kilowatt-hour | Joule | Joule | Kilowatt-hour |
|---|---|---|---|
| 1 | 3600000 | 1 | 2.777778e-7 |
| 2 | 7200000 | 2 | 5.555556e-7 |
| 3 | 10800000 | 3 | 8.333333e-7 |
| 5 | 18000000 | 5 | 0.0000013889 |
| 10 | 36000000 | 10 | 0.0000027778 |
| 25 | 90000000 | 25 | 0.0000069444 |
| 50 | 180000000 | 50 | 0.0000138889 |
| 100 | 360000000 | 100 | 0.0000277778 |
| 500 | 1.800000e+9 | 500 | 0.0001388889 |
| 1000 | 3.600000e+9 | 1000 | 0.0002777778 |
Conversion Formula
Joule = Kilowatt-hour × 3600000
Kilowatt-hour = Joule × 2.777778e-7
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 3600000.
How to convert Kilowatt-hour to Joule
Multiply the value in kilowatt-hour by 3600000 to get joule. For example, 5 Kilowatt-hour = 18000000 Joule. All results in the 能量 converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 3600 too early — keep full precision until the final display. For 能量, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Joule in 1 Kilowatt-hour?
- 1 Kilowatt-hour = 3600000 Joule.
- How many Kilowatt-hour in 1 Joule?
- 1 Joule = 2.777778e-7 Kilowatt-hour.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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