Kilocalories to Joules
One kilocalorie is 4,184 joules. 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 joules · open this conversion
Formula
joules = kilocalories × 4,184
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
Kilocalories to Joules table
| Kilocalories | Joules |
|---|---|
| 1 kcal | 4,184 J |
| 2 kcal | 8,368 J |
| 5 kcal | 20,920 J |
| 10 kcal | 41,840 J |
| 20 kcal | 83,680 J |
| 25 kcal | 104,600 J |
| 50 kcal | 209,200 J |
| 100 kcal | 418,400 J |
| 150 kcal | 627,600 J |
| 200 kcal | 836,800 J |
| 250 kcal | 1,046,000 J |
| 300 kcal | 1,255,200 J |
| 400 kcal | 1,673,600 J |
| 500 kcal | 2,092,000 J |
| 600 kcal | 2,510,400 J |
| 800 kcal | 3,347,200 J |
| 1,000 kcal | 4,184,000 J |
| 1,500 kcal | 6,276,000 J |
| 2,000 kcal | 8,368,000 J |
| 2,500 kcal | 10,460,000 J |
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Other energy conversions
⇄ Joules to KilocaloriesKilocalories to KilojoulesKilocalories to CaloriesKilocalories to Watt hoursKilocalories to Kilowatt hours
Frequently asked questions
▸How many joules are in a kilocalorie?
One kilocalorie is 4,184 joules. joules = kilocalories × 4,184.
▸How do I convert kilocalories to joules?
Multiply the number of kilocalories by 4,184. For example, 10 kcal × 4,184 = 41,840 J.
▸What is the difference between kilocalories and joules?
Kilocalorie (kcal) and Joule (J) 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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