Calories to Megajoules Converter
EngineeringJoules, calories, kilowatt-hours and more.
How to convert Calories to Megajoules
Multiply the calories value by 4.184e-6: 1 cal = 4.184e-6 MJ. Going the other way, 1 MJ = 239,006 cal, so divide by 4.184e-6 or use the Megajoules to Calories converter.
About these units
Calories (cal)
The calorie used here is the thermochemical calorie, exactly 4.184 joules, roughly the energy needed to warm one gram of water by one degree Celsius. Food calories are actually kilocalories.
Megajoules (MJ)
A megajoule is one million joules. A kilowatt-hour is 3.6 MJ, and vehicle fuels contain roughly 30 to 45 MJ per liter or kilogram.
Calories to Megajoules conversion table
| Calories (cal) | Megajoules (MJ) |
|---|---|
| 1 cal | 4.184e-6 MJ |
| 2 cal | 8.368e-6 MJ |
| 3 cal | 1.2552e-5 MJ |
| 4 cal | 1.6736e-5 MJ |
| 5 cal | 2.092e-5 MJ |
| 10 cal | 4.184e-5 MJ |
| 20 cal | 8.368e-5 MJ |
| 25 cal | 0.0001046 MJ |
| 50 cal | 0.0002092 MJ |
| 100 cal | 0.0004184 MJ |
| 500 cal | 0.002092 MJ |
| 1,000 cal | 0.004184 MJ |
More calories conversions
- Calories to Kilocalories1 cal = 0.001 kcal
- Calories to Calories Nutritional1 cal = 0.001 Cal
- Calories to Thermochemical Calories1 cal = 1 calth
- Calories to Joules1 cal = 4.184 J
- Calories to Watt Hours1 cal = 0.00116222 Wh
- Calories to British Thermal Units1 cal = 0.00396565 BTU
- Calories to Ergs1 cal = 4.184e+7 erg
See every unit on the Energy Converter.