Calories to Gigajoules Converter
EngineeringJoules, calories, kilowatt-hours and more.
How to convert Calories to Gigajoules
Multiply the calories value by 4.184e-9: 1 cal = 4.184e-9 GJ. Going the other way, 1 GJ = 2.3901e+8 cal, so divide by 4.184e-9 or use the Gigajoules 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.
Calories to Gigajoules conversion table
| Calories (cal) | Gigajoules (GJ) |
|---|---|
| 1 cal | 4.184e-9 GJ |
| 2 cal | 8.368e-9 GJ |
| 3 cal | 1.2552e-8 GJ |
| 4 cal | 1.6736e-8 GJ |
| 5 cal | 2.092e-8 GJ |
| 10 cal | 4.184e-8 GJ |
| 20 cal | 8.368e-8 GJ |
| 25 cal | 1.046e-7 GJ |
| 50 cal | 2.092e-7 GJ |
| 100 cal | 4.184e-7 GJ |
| 500 cal | 2.092e-6 GJ |
| 1,000 cal | 4.184e-6 GJ |
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.