Calories to Megajoules
Convert calories (cal) to megajoules (MJ). Type in either box; the other updates as you go.
How to convert calories to megajoules
To convert calories to megajoules, multiply the number of calories by 0.000004184.
Example
Convert 5,000 calories to megajoules:
Calorie to megajoule conversion chart
| Calories (cal) | Megajoules (MJ) |
|---|---|
| 1,000 cal | 0.004184 MJ |
| 2,000 cal | 0.008368 MJ |
| 3,000 cal | 0.012552 MJ |
| 4,000 cal | 0.016736 MJ |
| 5,000 cal | 0.02092 MJ |
| 6,000 cal | 0.025104 MJ |
| 7,000 cal | 0.029288 MJ |
| 8,000 cal | 0.033472 MJ |
| 9,000 cal | 0.037656 MJ |
| 10,000 cal | 0.04184 MJ |
| 12,000 cal | 0.050208 MJ |
| 15,000 cal | 0.06276 MJ |
| 20,000 cal | 0.08368 MJ |
| 25,000 cal | 0.1046 MJ |
| 30,000 cal | 0.12552 MJ |
| 40,000 cal | 0.16736 MJ |
| 50,000 cal | 0.2092 MJ |
| 60,000 cal | 0.25104 MJ |
| 70,000 cal | 0.29288 MJ |
| 75,000 cal | 0.3138 MJ |
| 80,000 cal | 0.33472 MJ |
| 90,000 cal | 0.37656 MJ |
| 100,000 cal | 0.4184 MJ |
| 150,000 cal | 0.6276 MJ |
| 200,000 cal | 0.8368 MJ |
| 250,000 cal | 1.046 MJ |
| 500,000 cal | 2.092 MJ |
| 1,000,000 cal | 4.184 MJ |
Going the other way? See the megajoules to calories chart.
About the units
Calorie (cal)
A small calorie (thermochemical) is exactly 4.184 joules, the energy to warm one gram of water by about one degree Celsius.
Megajoule (MJ)
A megajoule is 1,000,000 joules, about the kinetic energy of a one-tonne car at 160 km/h.
Frequently asked questions
How many megajoules are in a calorie?
There are 0.000004184 megajoules in a calorie.
How many calories are in a megajoule?
There are 239,005.7361 calories in a megajoule.
How do you convert calories to megajoules?
To convert calories to megajoules, multiply the number of calories by 0.000004184.
What is 5,000 calories in megajoules?
5,000 calories equals 0.02092 megajoules.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.