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Kilocalories to Kilojoules

Convert Kilocalories to Kilojoules with an exact factor. One kilocalorie equals 4.184 Kilojoules.

Result4.184

How to convert Kilocalories to Kilojoules

The converter above changes Kilocalories into Kilojoules instantly. As a reference point, one kilocalorie corresponds to 4.184 Kilojoules, and one kilojoule corresponds to 0.23900574 Kilocalories. Use the table below for common values.

Kilocalories × 4.184 = Kilojoules

For example, 5 Kilocalories = 20.92 Kilojoules.

About the units

Kilocalories to Kilojoules conversion table

KilocaloriesKilojoules
1 kcal4.184 kJ
2 kcal8.368 kJ
3 kcal12.552 kJ
5 kcal20.92 kJ
10 kcal41.84 kJ
20 kcal83.68 kJ
25 kcal104.6 kJ
50 kcal209.2 kJ
100 kcal418.4 kJ
250 kcal1,046 kJ
500 kcal2,092 kJ
1,000 kcal4,184 kJ

Kilojoules to Kilocalories conversion table

KilojoulesKilocalories
1 kJ0.23900574 kcal
2 kJ0.47801147 kcal
3 kJ0.71701721 kcal
5 kJ1.19502868 kcal
10 kJ2.39005736 kcal
20 kJ4.78011472 kcal
25 kJ5.9751434 kcal
50 kJ11.95028681 kcal
100 kJ23.90057361 kcal
250 kJ59.75143403 kcal
500 kJ119.50286807 kcal
1,000 kJ239.00573614 kcal

Frequently asked questions

How many Kilojoules is one kilocalorie?
One kilocalorie is 4.184 Kilojoules.
Are these energy conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Kilocalories to Kilojoules?
Multiply the number of Kilocalories by 4.184. To convert back, multiply Kilojoules by 0.23900574.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026