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joule Unit Converter
Background:
joule [J]
The SI-derived unit for energy, work, and heat, named after British physicist James Prescott Joule. 1 joule = 1 newton-meter = 1 watt-second. Widely used in physics, engineering, and nutrition (e.g., food energy is often labeled in kilojoules, kJ). Universally adopted and part of China’s statutory measurement system.
kilojoule [kJ]
The SI-derived unit for energy, work, and heat, named after British physicist James Prescott Joule. 1 joule = 1 newton-meter = 1 watt-second. Widely used in physics, engineering, and nutrition (e.g., food energy is often labeled in kilojoules, kJ). Universally adopted and part of China’s statutory measurement system.
Convert joule [J] to kilojoule [kJ]
| joule [J] | kilojoule [kJ] |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 4 J | 0.004 kJ |
| 5 J | 0.005 kJ |
| 10 J | 0.01 kJ |
| 20 J | 0.02 kJ |
| 30 J | 0.03 kJ |
| joule [J] | kilojoule [kJ] |
|---|---|
| 40 J | 0.04 kJ |
| 50 J | 0.05 kJ |
| 100 J | 0.1 kJ |
| 200 J | 0.2 kJ |
| 300 J | 0.3 kJ |
| 400 J | 0.4 kJ |
| 500 J | 0.5 kJ |
| 1000 J | 1 kJ |
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