Calories Converter
Convert calories (thermochemical) (cal) to other units, with every conversion from 1 cal listed.
Change the values and press Calculate to work out your own figures.
Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 cal = 0.00396566683139 Btu
- 1 × 0.00396566683139 = 0.00396566683139 Btu
1 cal in other units
| Conversion | 1 cal equals |
|---|---|
| Calories to british thermal units | 0.00396566683139 Btu |
| Calories to electronvolts | 2.61144739675 × 10¹⁹ eV |
| Calories to gigajoules | 4.184 × 10⁻⁹ GJ |
| Calories to joules | 4.184 J |
| Calories to kilocalories | 0.001 kcal |
| Calories to kiloelectronvolts | 2.61144739675 × 10¹⁶ keV |
| Calories to kilojoules | 0.004184 kJ |
| Calories to kilowatt-hours | 1.16222222222 × 10⁻⁶ kWh |
| Calories to megacalories | 1 × 10⁻⁶ Mcal |
| Calories to megaelectronvolts | 26,114,473,967,500 MeV |
| Calories to megajoules | 4.184 × 10⁻⁶ MJ |
| Calories to megawatt-hours | 1.16222222222 × 10⁻⁹ MWh |
| Calories to million btu | 3.96566683139 × 10⁻⁹ MMBtu |
| Calories to quads | 3.96566683139 × 10⁻¹⁸ quad |
| Calories to therms | 3.96566683139 × 10⁻⁸ thm |
| Calories to watt-hours | 0.00116222222222 Wh |
About the units
- Calories (cal)
- Calories (thermochemical), a specialised unit. The thermochemical calorie, 4.184 J, used on US food labels as 1 Calorie = 1 kilocalorie. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.