1 joule (J) = 0.0002390057 kilocalories (kcal). To convert, divide by 4,184: kcal = J ÷ 4,184. For example, 500 J = 0.1195028681 kcal.
kcal = J ÷ 4,184
Joules to kilocalories table
| Joules (J) | Kilocalories (kcal) |
|---|---|
| 100 | 0.0239005736 |
| 200 | 0.0478011472 |
| 300 | 0.0717017208 |
| 400 | 0.0956022945 |
| 500 | 0.1195028681 |
| 1,000 | 0.2390057361 |
| 2,000 | 0.4780114723 |
| 2,500 | 0.5975143403 |
| 5,000 | 1.195028681 |
| 10,000 | 2.390057361 |
| 25,000 | 5.975143403 |
| 50,000 | 11.95028681 |
| 100,000 | 23.90057361 |
The two units
Joule (J). The SI unit of energy: one newton acting over one meter.
Kilocalorie (kcal). One thousand calories: the "Calorie" on food labels.
Convert joules to other units
- Joules to kilojoules — 1 J = 0.001 kJ
- Joules to calories — 1 J = 0.2390057361 cal
- Joules to watt-hours — 1 J = 0.0002777778 Wh
- Joules to kilowatt-hours — 1 J = 2.777778e-7 kWh
- Joules to British thermal units — 1 J = 0.0009478171 BTU
- Joules to electronvolts — 1 J = 6.241509e+18 eV
Convert other units to kilocalories
Questions people ask
- How many kilocalories are in a joule?
- 0.0002390057.
- How do you convert joules to kilocalories?
- kcal = J ÷ 4,184. It is the same as dividing by 4,184.
- How do you convert kilocalories back to joules?
- J = kcal × 4,184. See kilocalories to joules.
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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