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1 Joules to Kilojoules

Answer
1 J = 0.001 kJ
kilojoules = joules × 0.001
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0.001

1 joule = 0.001 kilojoules · open this conversion

How the answer is worked out

One joule is 0.001 kilojoules, so converting is a single multiplication:

1 J × 0.001 = 0.001 kJ

Conversion table around 1 J

JoulesKilojoules
1 J0.001 kJ
2 J0.002 kJ
5 J0.005 kJ
10 J0.01 kJ
20 J0.02 kJ
25 J0.025 kJ
50 J0.05 kJ
100 J0.1 kJ
150 J0.15 kJ
200 J0.2 kJ
250 J0.25 kJ
300 J0.3 kJ
400 J0.4 kJ
500 J0.5 kJ
600 J0.6 kJ
800 J0.8 kJ
1,000 J1 kJ
1,500 J1.5 kJ
2,000 J2 kJ
2,500 J2.5 kJ
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Nearby conversions

2 J to kJ5 J to kJ10 J to kJ
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Related conversions

⇄ 1 Kilojoules to Joules1 Joules to Calories1 Joules to Kilocalories1 Joules to Watt hours1 Joules to Kilowatt hours

Frequently asked questions

▸How many kilojoules is 1 joules?
1 joules is 0.001 kilojoules. The conversion multiplies by 0.001, so 1 × 0.001 = 0.001.
▸What is the formula to convert joules to kilojoules?
kilojoules = joules × 0.001. One joule is 0.001 kilojoules.
▸How do I convert 1 kilojoules back to joules?
Use the reverse conversion: 1 kilojoules is 1,000 joules.
▸Is this conversion exact?
The underlying factor is exact as defined by the SI and the 1959 international agreements. The figure shown is rounded to seven significant digits for readability.
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