Kilocalories to Kilojoules
One kilocalorie is 4.184 kilojoules. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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1 kilocalorie = 4.184 kilojoules · open this conversion
Formula
kilojoules = kilocalories × 4.184
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
Kilocalories to Kilojoules table
| Kilocalories | Kilojoules |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 20 kcal | 83.68 kJ |
| 25 kcal | 104.6 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 150 kcal | 627.6 kJ |
| 200 kcal | 836.8 kJ |
| 250 kcal | 1,046 kJ |
| 300 kcal | 1,255.2 kJ |
| 400 kcal | 1,673.6 kJ |
| 500 kcal | 2,092 kJ |
| 600 kcal | 2,510.4 kJ |
| 800 kcal | 3,347.2 kJ |
| 1,000 kcal | 4,184 kJ |
| 1,500 kcal | 6,276 kJ |
| 2,000 kcal | 8,368 kJ |
| 2,500 kcal | 10,460 kJ |
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Other energy conversions
⇄ Kilojoules to KilocaloriesKilocalories to JoulesKilocalories to CaloriesKilocalories to Watt hoursKilocalories to Kilowatt hours
Frequently asked questions
▸How many kilojoules are in a kilocalorie?
One kilocalorie is 4.184 kilojoules. kilojoules = kilocalories × 4.184.
▸How do I convert kilocalories to kilojoules?
Multiply the number of kilocalories by 4.184. For example, 10 kcal × 4.184 = 41.84 kJ.
▸What is the difference between kilocalories and kilojoules?
Kilocalorie (kcal) and Kilojoule (kJ) both measure energy. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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