Joules to Megacalories Converter
Convert joules (watt-seconds) (J) to megacalories (Mcal), with the formula, a conversion table and exact factors.
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 J = 2.39005736138e-7 Mcal
- 1 × 2.39005736138e-7 = 2.39005736138e-7 Mcal
How to convert joules to megacalories
1 Mcal = 4,184,000 J, so divide by 4,184,000 to go from joules (watt-seconds) to megacalories (1 J = 2.39005736138 × 10⁻⁷ Mcal).
Mcal = J ÷ 4,184,000 J = Mcal × 4,184,000
Worked example:
1 J = 2.39005736138e-7 Mcal 5 × 2.39005736138e-7 = 1.19502868069e-6 Mcal
Joules to megacalories table
| Joules | Megacalories |
|---|---|
| 1 J | 2.39005736138 × 10⁻⁷ Mcal |
| 2 J | 4.78011472275 × 10⁻⁷ Mcal |
| 3 J | 7.17017208413 × 10⁻⁷ Mcal |
| 4 J | 9.56022944551 × 10⁻⁷ Mcal |
| 5 J | 1.19502868069 × 10⁻⁶ Mcal |
| 6 J | 1.43403441683 × 10⁻⁶ Mcal |
| 7 J | 1.67304015296 × 10⁻⁶ Mcal |
| 8 J | 1.9120458891 × 10⁻⁶ Mcal |
| 9 J | 2.15105162524 × 10⁻⁶ Mcal |
| 10 J | 2.39005736138 × 10⁻⁶ Mcal |
| 15 J | 3.58508604207 × 10⁻⁶ Mcal |
| 20 J | 4.78011472275 × 10⁻⁶ Mcal |
| 25 J | 5.97514340344 × 10⁻⁶ Mcal |
| 30 J | 7.17017208413 × 10⁻⁶ Mcal |
| 40 J | 9.56022944551 × 10⁻⁶ Mcal |
| 50 J | 1.19502868069 × 10⁻⁵ Mcal |
| 75 J | 1.79254302103 × 10⁻⁵ Mcal |
| 100 J | 2.39005736138 × 10⁻⁵ Mcal |
| 250 J | 5.97514340344 × 10⁻⁵ Mcal |
| 500 J | 0.000119502868069 Mcal |
| 1000 J | 0.000239005736138 Mcal |
About the units
- Joules (J)
- Joules (watt-seconds), a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
- Megacalories (Mcal)
- Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
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