1,000 joules
1 kJEnergy · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Energy
Just how much energy is 1,000 joules?
A little work
1,000 J
ENERGY STORED OR TRANSFERRED
1,000 joules
The quantity is exact as entered.
1 kJEnergy
0
Food kilocalorie
A food kilocalorie is the energy needed to raise the temperature of one kilogram of water by one degree Celsius, used to express food energy.
4.184 kJEnergy
0
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
A little perspective
The energy of a food kilocalorie is about 4.18 times 1,000 joules.
Measurements, assumptions & sources +
1,000 joules
Energy: 1 kJ; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Food kilocalorie
Energy: 4.184 kJ; defined energy model.
One thermochemical kilocalorie, the unit commonly written Calorie on food labels.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1,000 joules with the energy of a food kilocalorie. The notes below explain how each value was chosen.
Food kilocalorie
4.184 kJEnergy · defined energy model
One thermochemical kilocalorie, the unit commonly written Calorie on food labels.
- Comparing
- Energy ↔ Energy
- Relative size
- The energy of a food kilocalorie is about 4.18 times 1,000 joules. The energy of a food kilocalorie is approximately 318% greater than 1,000 joules.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The energy of a food kilocalorie: This is an illustrative comparison value, not a claim that every example is the same.
Energy is an amount; power describes the rate of energy transfer or use.
0.00027778 kWhkilowatt-hours
0.23901 kcalkilocalories
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