Joules to Calories Converter
Convert joules (J) to calories (cal) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Result
- Calories
- 0.239006 cal
How to use the joules to calories converter
- Enter the joules (J).
- The results update as you type, or press Calculate.
- Read the calories first, then the supporting figures below it.
Formula
Calories = joules × 0.2390057361
Worked example
For example, with these inputs:
- Joules (J): 1
the calculator returns:
- Calories: 0.239006 cal
Joules to Calories table
| Joules | Calories |
|---|---|
| 1 J | 0.239006 cal |
| 2 J | 0.478011 cal |
| 5 J | 1.195 cal |
| 10 J | 2.3901 cal |
| 20 J | 4.7801 cal |
| 25 J | 5.9751 cal |
| 50 J | 11.9503 cal |
| 100 J | 23.9006 cal |
| 250 J | 59.7514 cal |
| 500 J | 119.5029 cal |
| 1,000 J | 239.0057 cal |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Frequently asked questions
How many calories are in one joule?
1 J = 0.239006 cal.
How do I convert J to cal?
Calories = joules × 0.2390057361.