Convert joules to kilojoules
Instantly convert joules to kilojoules using our free online calculator. See the formula and a full reference table below.
kilojoules
1 joule = 1.0000e-3 kilojoules
Formula:
joules × 1.0000e-3 = kilojoulesJoule → Kilojoule reference table
| joules | kilojoules |
|---|---|
| 1 joule | 1.0000e-3 kilojoules |
| 2 joules | 2.0000e-3 kilojoules |
| 5 joules | 5.0000e-3 kilojoules |
| 10 joules | 0.01 kilojoules |
| 25 joules | 0.025 kilojoules |
| 50 joules | 0.05 kilojoules |
| 100 joules | 0.1 kilojoules |
| 250 joules | 0.25 kilojoules |
| 500 joules | 0.5 kilojoules |
| 1000 joules | 1 kilojoules |
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Frequently asked questions
How many kilojoules are in 1 joule?
1 joule equals 1.0000e-3 kilojoules.
What is the formula to convert joules to kilojoules?
Multiply the number of joules by 1.0000e-3 to get the equivalent in kilojoules.
Is this converter accurate?
Yes. All conversions use internationally recognized conversion factors with up to 6 decimal places of precision.