Electronvolts to Calories Converter
Convert electronvolts (eV) 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
- 3.829294e-20 cal
How to use the electronvolts to calories converter
- Enter the electronvolts (eV).
- The results update as you type, or press Calculate.
- Read the calories first, then the supporting figures below it.
Formula
Calories = electronvolts × 3.829294e-20
Worked example
For example, with these inputs:
- Electronvolts (eV): 1
the calculator returns:
- Calories: 3.829294e-20 cal
Electronvolts to Calories table
| Electronvolts | Calories |
|---|---|
| 1 eV | 3.829294e-20 cal |
| 2 eV | 7.658588e-20 cal |
| 5 eV | 1.914647e-19 cal |
| 10 eV | 3.829294e-19 cal |
| 20 eV | 7.658588e-19 cal |
| 25 eV | 9.573235e-19 cal |
| 50 eV | 1.914647e-18 cal |
| 100 eV | 3.829294e-18 cal |
| 250 eV | 9.573235e-18 cal |
| 500 eV | 1.914647e-17 cal |
| 1,000 eV | 3.829294e-17 cal |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
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.
Frequently asked questions
How many calories are in one electronvolt?
1 eV = 3.829294e-20 cal.
How do I convert eV to cal?
Calories = electronvolts × 3.829294e-20.