21 Joules to Calories
Convert 21 joules (J) to calories (cal) with formulas, examples, and conversion tables.
J
cal
21 Joules (J) = 5.01912045889 calories (cal)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 Calorie = 4.184 Joules
2Divide the value by the conversion factor:
21 ÷ 4.184 = 5.01912045889
3Result:
21 Joules (J) = 5.01912045889 calories (cal)
Joules to Calories Conversion Table
| Joules | Calories |
|---|---|
| 1 J | 0.239006 cal |
| 2 J | 0.478011 cal |
| 3 J | 0.717017 cal |
| 4 J | 0.956023 cal |
| 5 J | 1.19503 cal |
| 10 J | 2.39006 cal |
| 20 J | 4.78011 cal |
| 21 J | 5.01912 cal |
| 50 J | 11.9503 cal |
| 100 J | 23.9006 cal |
21 Joules in Other Units
| Unit | 21 J = |
|---|---|
| Joules to Kilojoules | 0.021 kJ |
| Joules to Megajoules | 2.1e-5 MJ |
| Joules to Gigajoules | 2.1e-8 GJ |
| Joules to Watt-hours | 0.00583333333333 Wh |
| Joules to Kilowatt-hours | 5.83333333333e-6 kWh |
| Joules to Megawatt-hours | 5.83333333333e-9 MWh |
| Joules to Calories | 5.01912045889 cal |
| Joules to Kilocalories | 0.00501912045889 kcal |
| Joules to BTU | 0.0199040812845 BTU |
| Joules to Therms | 1.9904159527e-7 therm |
| Joules to Foot-pounds | 15.4887816967 ft·lb |
| Joules to Electronvolts | 1.31071415197e20 eV |
| Joules to Ergs | 210000000 erg |