Energy Converter
Joule
Definition: The joule (symbol: J) is the base unit of energy in the International System of Units (SI). It is defined as the work done by a force of one newton acting through a distance of one meter.
History/origin: The unit is named in honor of the English physicist James Prescott Joule, who established the relationship between heat and mechanical work in the mid-19th century.
Current use: Joules are the standard unit used in physics and engineering to measure work, heat, and electrical energy.
Gram calorie
Definition: The gram calorie, also known as the small calorie (symbol: cal), is defined as the amount of heat energy required to raise the temperature of one gram of water by one degree Celsius.
History/origin: The calorie was introduced by Nicolas Clément in 1824 as a unit of heat energy. It was widely used in science until the SI system officially adopted the joule.
Current use: Today, the small gram calorie is mostly restricted to scientific research, specific heat capacity calculations in chemistry, and physics.
Joule to Gram calorie Conversion Table
| Joule [j] | Gram calorie [cal] |
|---|---|
| 0.01 j | 0.00239006 cal |
| 0.1 j | 0.02390057 cal |
| 1 j | 0.23900574 cal |
| 2 j | 0.47801147 cal |
| 3 j | 0.71701721 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 |
| 1000 j | 239.00573614 cal |
How to Convert Joule to Gram calorie
1 j = 0.23900574 cal
1 cal = 4.184 j
Example: convert 15 j to cal:
15 j = 15 × 0.23900574 cal = 3.58508604 cal
Did You Know?
- Did you know? One Joule is roughly the amount of energy required to lift a small apple (100 grams) one meter straight up into the air!