Calories to Megajoules
Convert cal to MJ. 1 calorie = 0.000004184 MJ, and 1 megajoule = 239,005.736138 cal.
Formula Multiply the value in calories by 0.000004184. Calories to Megajoules table
1 calorie in every unit
| Joules | 4.184 | J |
|---|---|---|
| Kilojoules | 0.004184 | kJ |
| Megajoules | 0.000004184 | MJ |
| Kilocalories | 0.001 | kcal |
| Watt-hours | 0.001162222222 | Wh |
| Kilowatt-hours | 0.000001162222 | kWh |
| British thermal units | 0.003965666831 | BTU |
| Foot-pounds | 3.08596003258 | ft·lbf |
| Electronvolts | 2.611447e+19 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert calories to megajoules
Multiply the value in calories by 0.000004184.
For example, 10 cal = 0.00004184 MJ, and 10 MJ = 2,390,057.36138 cal.
Frequently asked questions
How many megajoules are in one calorie?
1 calorie = 0.000004184 MJ.
What is 10 cal in MJ?
10 cal = 0.00004184 MJ.
How do I convert MJ back to cal?
Multiply the value in megajoules by 239,005.736138. 1 megajoule = 239,005.736138 cal.
Calories to Megajoules table
| Calories (cal) | Megajoules (MJ) |
|---|---|
| 0.1 | 0.0000004184 |
| 0.5 | 0.000002092 |
| 1 | 0.000004184 |
| 2 | 0.000008368 |
| 3 | 0.000012552 |
| 4 | 0.000016736 |
| 5 | 0.00002092 |
| 6 | 0.000025104 |
| 7 | 0.000029288 |
| 8 | 0.000033472 |
| 9 | 0.000037656 |
| 10 | 0.00004184 |
| 15 | 0.00006276 |
| 20 | 0.00008368 |
| 25 | 0.0001046 |
| 30 | 0.00012552 |
| 50 | 0.0002092 |
| 75 | 0.0003138 |
| 100 | 0.0004184 |
| 250 | 0.001046 |
| 500 | 0.002092 |
| 1,000 | 0.004184 |
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