joules to kilojoules

Free online joules to kilojoules converter, type a value and get the result instantly. No signup, works offline in your browser.

—

All calculations run locally in your browser, nothing is uploaded.

Conversion formula

1 J = 0.001 kJ

How to convert joules to kilojoules step by step

  1. Write down the value you want to convert in joules.
  2. Multiply it by the conversion factor: 0.001 (because 1 J = 0.001 kJ).
  3. The result is your value in kilojoules. Example: 10 J × 0.001 = 0.01 kJ.

Tip: to go the other way, divide by the factor, or use the kilojoules to joules converter.

joules to kilojoules conversion table

joules (J)kilojoules (kJ)
0.1 J0.0001 kJ
0.25 J0.00025 kJ
0.5 J0.0005 kJ
1 J0.001 kJ
2 J0.002 kJ
3 J0.003 kJ
4 J0.004 kJ
5 J0.005 kJ
6 J0.006 kJ
8 J0.008 kJ
10 J0.01 kJ
15 J0.015 kJ
20 J0.02 kJ
25 J0.025 kJ
30 J0.03 kJ
40 J0.04 kJ
50 J0.05 kJ
60 J0.06 kJ
75 J0.075 kJ
100 J0.1 kJ
120 J0.12 kJ
122 J0.122 kJ
146 J0.146 kJ
150 J0.15 kJ
190 J0.19 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
750 J0.75 kJ
800 J0.8 kJ
1000 J1 kJ
1500 J1.5 kJ
1810 J1.81 kJ
1930 J1.93 kJ
2000 J2 kJ
2500 J2.5 kJ
3000 J3 kJ
4000 J4 kJ
5000 J5 kJ
7500 J7.5 kJ
10000 J10 kJ
10500 J10.5 kJ

Related converters

Joules to caloriesJoules to kilocaloriesJoules to watt-hoursJoules to kilowatt-hoursJoules to electronvoltsJoules to BTUJoules to foot-poundsJoules to refrigeration ton-hoursKilojoules to caloriesKilojoules to kilocaloriesKilojoules to watt-hoursKilojoules to kilowatt-hoursKilojoules to electronvoltsKilojoules to BTUKilojoules to foot-poundsKilojoules to refrigeration ton-hoursCalories to joulesCalories to kilojoulesCalories to kilocaloriesCalories to watt-hoursCalories to kilowatt-hoursCalories to electronvoltsCalories to BTUCalories to foot-pounds

FAQ

How do I convert joules to kilojoules?

Type a value in joules in the converter above, the equivalent in kilojoules is calculated instantly. 1 J equals 0.001 kJ.

What is the formula to convert joules to kilojoules?

Multiply the value in joules by 0.001 to get the value in kilojoules.

How many kilojoules are in 1 joules?

There are 0.001 kilojoules in 1 J.

How do I convert kilojoules back to joules?

Divide the value in kilojoules by 0.001, or use the swap button (⇄) in the converter above.

What does J stand for?

J is the standard abbreviation for joules. E.g. 1 J = 0.001 kJ.

What does kJ stand for?

kJ is the standard abbreviation for kilojoules.