1 calorie (cal) = 0.001 kilocalories (kcal). To convert, divide by 1,000: kcal = cal ÷ 1,000. For example, 500 cal = 0.5 kcal.
kcal = cal ÷ 1,000
Calories to kilocalories table
| Calories (cal) | Kilocalories (kcal) |
|---|---|
| 100 | 0.1 |
| 200 | 0.2 |
| 300 | 0.3 |
| 400 | 0.4 |
| 500 | 0.5 |
| 1,000 | 1 |
| 2,000 | 2 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
| 25,000 | 25 |
| 50,000 | 50 |
| 100,000 | 100 |
The two units
Calorie (cal). The thermochemical calorie, exactly 4.184 joules. Food "Calories" are kilocalories.
Kilocalorie (kcal). One thousand calories: the "Calorie" on food labels.
Because both units are defined in terms of the same base unit, the factor 0.001 is exact, not a rounded measurement.
Convert calories to other units
- Calories to joules — 1 cal = 4.184 J
- Calories to kilojoules — 1 cal = 0.004184 kJ
- Calories to watt-hours — 1 cal = 0.0011622222 Wh
- Calories to kilowatt-hours — 1 cal = 0.0000011622 kWh
- Calories to British thermal units — 1 cal = 0.0039656668 BTU
- Calories to electronvolts — 1 cal = 2.611447e+19 eV
Convert other units to kilocalories
Questions people ask
- How many kilocalories are in a calorie?
- 0.001, exactly.
- How do you convert calories to kilocalories?
- kcal = cal ÷ 1,000. It is the same as dividing by 1,000.
- How do you convert kilocalories back to calories?
- cal = kcal × 1,000. See kilocalories to calories.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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