Joule to Gram calorieConverter
Instantly convert Joule (J) to Gram calorie (cal). Free, accurate, and easy to use.
How to Convert Joule to Gram calorie
To convert Joule (J) to Gram calorie (cal), multiply your value by 0.23900574.
Example: 5 J × 0.23900574 = 1.19502868 cal
What is a Joule?
The Joule (J) is the SI unit of energy, defined as the work done when a force of 1 Newton moves an object 1 meter. Named after 19th-century physicist James Prescott Joule, who established the mechanical equivalent of heat, it is the universal unit for all energy forms in science. Lifting a 100-gram apple one meter requires approximately 1 Joule. One food Calorie (kcal) equals 4,184 Joules.
What is a Gram calorie?
The gram calorie (small calorie, cal) is the heat required to raise the temperature of 1 gram of water by 1 °C, equal to exactly 4.184 Joules. It is used in chemistry and thermodynamics for heat calculations. The food 'Calorie' (capital C) printed on nutrition labels is actually a kilocalorie (kcal) — 1,000 times larger. One gram calorie is a very small amount of energy in everyday terms.
Joule to Gram calorie Conversion Table
| Joule (J) | Gram calorie (cal) |
|---|---|
| 0.001 J | 0.00023901 cal |
| 0.01 J | 0.00239006 cal |
| 0.1 J | 0.02390057 cal |
| 0.5 J | 0.11950287 cal |
| 1 J | 0.23900574 cal |
| 2 J | 0.47801147 cal |
| 5 J | 1.19502868 cal |
| 10 J | 2.39005736 cal |
| 20 J | 4.78011472 cal |
| 50 J | 11.95028681 cal |
| 100 J | 23.90057361 cal |
| 200 J | 47.80114723 cal |
| 500 J | 119.50286807 cal |
| 1000 J | 239.00573614 cal |
| 5000 J | 1195.02868069 cal |
| 10000 J | 2390.05736138 cal |
| 50000 J | 11950.28680688 cal |
| 100000 J | 23900.57361377 cal |
| 1000000 J | 239005.73613767 cal |
| 1000000000 J | 239005736.1376673 cal |
Frequently Asked Questions
How do I convert Joule to Gram calorie?
Multiply the Joule value by 0.23900574. Formula: cal = J × 0.23900574. Example: 10 J = 2.39005736 cal.
How many Gram calorie are in one Joule?
One Joule (J) equals 0.23900574 Gram calorie (cal).
How many Joule are in one Gram calorie?
One Gram calorie (cal) equals 4.184 Joule (J).
What is the exact conversion factor from Joule to Gram calorie?
The conversion factor is 0.23900574. Multiply any J value by this number to get cal. For the reverse, multiply by 4.184.
How do I convert Gram calorie back to Joule?
Divide by 0.23900574, or equivalently multiply by 4.184. Formula: J = cal ÷ 0.23900574.
Is the Joule-to-Gram calorie conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 0.23900574 is exact and universally agreed upon.