1 megajoule
1 MJEnergy · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Energy
Just how much energy is 1 megajoule?
Daily life
1 MJ
ENERGY STORED OR TRANSFERRED
1 megajoule
The quantity is exact as entered.
1 MJEnergy
0
Heat one litre of water
Heating one litre of water is the energy required to raise the temperature of a standard amount of water to near boiling.
334.4 kJEnergy
0
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
A little perspective
1 megajoule is about 2.99 times the energy of heating one litre of water.
Measurements, assumptions & sources +
1 megajoule
Energy: 1 MJ; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Heat one litre of water
Energy: 334.4 kJ; defined energy model.
An ideal model: 1 kg water heated by 80 K at 4,180 J/(kg·K). Excludes heat losses and phase change.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1 megajoule with the energy of heating one litre of water. The notes below explain how each value was chosen.
Heat one litre of water
334.4 kJEnergy · defined energy model
An ideal model: 1 kg water heated by 80 K at 4,180 J/(kg·K). Excludes heat losses and phase change.
- Comparing
- Energy ↔ Energy
- Relative size
- 1 megajoule is about 2.99 times the energy of heating one litre of water. 1 megajoule is approximately 199% greater than the energy of heating one litre of water.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The energy of heating one litre of water: 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.
1,000,000 Jjoules
0.27778 kWhkilowatt-hours
239.01 kcalkilocalories
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