calories to kilocalories
Convert calorie (small) to kilocalorie (food cal) — instant, free, with the formula shown.
How to convert calorie (small) to kilocalorie (food cal)
To convert calorie (small) to kilocalorie (food cal), multiply by 0.001:
For example, 10 cal × 0.001 = 0.01 kcal.
cal to kcal conversion table
| calories (cal) | kilocalories (kcal) |
|---|---|
| 1 cal | 0.001 kcal |
| 2 cal | 0.002 kcal |
| 5 cal | 0.005 kcal |
| 10 cal | 0.01 kcal |
| 25 cal | 0.025 kcal |
| 50 cal | 0.05 kcal |
| 100 cal | 0.1 kcal |
| 250 cal | 0.25 kcal |
| 500 cal | 0.5 kcal |
| 1000 cal | 1 kcal |
Other calorie (small) conversions
Convert to kilocalorie (food cal) from another unit
cal to kcal — frequently asked
How many kilocalories are in 1 calorie (small)?
1 calorie (small) = 0.001 kilocalories (cal × 0.001 = kcal).
What is the formula to convert calorie (small) to kilocalorie (food cal)?
Multiply your calorie (small) value by 0.001 to get kilocalorie (food cal).
How do I convert 10 calories to kilocalories?
10 cal = 0.01 kcal. For 100 cal the answer is 0.1 kcal. Use the calculator on this page for any other value.
When to convert calorie (small) to kilocalorie (food cal)
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.