Megajoule to Calorie Converter
Energy · unit-converter
Convert Megajoule to Calorie with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Megajoule (mj)
To: Calorie (cal)
About Megajoule
One megajoule is 1,000,000 J. It is common in fuel-content and engineering thermal calculations.
About Calorie
The small calorie (cal) is 4.184 J in this converter (thermochemical). Do not confuse with the dietary kilocalorie (kcal).
How to convert megajoules to calories
1 megajoule is equal to 239005.7361376672925 calorie when both are expressed in joule-equivalents:
1 mj = (1,000,000 J ÷ 4.184 J) cal = 239005.7361376672925 cal
Each megajoule is defined as 1,000,000 J and each calorie as 4.184 J in this tool, so one mj equals 1,000,000 ÷ 4.184 cal = 239005.7361376672925 cal.
Let d(mj) be the numeric amount in Megajoule (mj), and d(cal) the amount in Calorie (cal). Then:
d(cal) = d(mj) × (1,000,000 / 4.184)
Equivalently, divide by how many mj fit into one cal (joules per cal divided by joules per mj):
d(cal) = d(mj) ÷ 0.000004184
Or: calorie = megajoule ÷ 0.000004184
Examples
Example #1: Convert 1 mj to calorie
1 mj = 1 mj × (1,000,000/4.184) cal = 239005.736138 cal
1 mj = 1 mj ÷ 0.000004184 = 239005.736138 cal
Example #2: Convert 10 mj to calorie
10 mj = 10 mj × (1,000,000/4.184) cal = 2390057.3613800001 cal
10 mj = 10 mj ÷ 0.000004184 = 2390057.3613800001 cal
Summary
To convert Megajoule to Calorie, multiply the value in mj by the ratio of joules per mj divided by joules per cal. Equivalently: value_cal = value_mj × (1000000 / 4.184). Numerically, 1 mj equals 239005.7361376673 cal.
Relationship context
You are converting between SI energy (joules) (Megajoules) and food / nutrition energy (calories) (Calories). All values are mapped through joules first. The numeric factor is 2.390057e+5.
Conversion tables
| Megajoule (mj) | Calorie (cal) |
|---|---|
| 0.1 | 23,900.5736138 |
| 1 | 239,005.736138 |
| 2 | 478,011.472275 |
| 3 | 717,017.208413 |
| 4 | 956,022.944551 |
| 5 | 1,195,028.6806900001 |
| 6 | 1,434,034.41683 |
| 7 | 1,673,040.1529600001 |
| 8 | 1,912,045.8891 |
| 9 | 2,151,051.62524 |
| Megajoule (mj) | Calorie (cal) |
|---|---|
| 10 | 2,390,057.3613800001 |
| 20 | 4,780,114.7227499997 |
| 30 | 7,170,172.0841300003 |
| 40 | 9,560,229.44551 |
| 50 | 11,950,286.8069000002 |
| 60 | 14,340,344.1682999991 |
| 70 | 16,730,401.5296 |
| 80 | 19,120,458.8909999989 |
| 90 | 21,510,516.2523999996 |
| 100 | 23,900,573.6138000004 |