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.
How big is it?
334.4 kJ · energy
Energy · defined energy model

A little perspective
Heat one litre of water vs Laptop battery: energy comparison
The energy of heating one litre of water is about 1.55 times the energy of a laptop battery.
ENERGY STORED OR TRANSFERRED
Heating one litre of water is the energy required to raise the temperature of a standard amount of water to near boiling.
Measurements, assumptions & sources +
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.
Laptop battery
Energy: 216 kJ; defined energy model.
A defined 60 Wh battery. This is stored energy, not device power.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 334.4 kJ
We compare the energy of heating one litre of water. This is an illustrative comparison value, not a claim that every example is the same.
An ideal model: 1 kg water heated by 80 K at 4,180 J/(kg·K). Excludes heat losses and phase change.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 334.4 kJ | Not recorded | defined energy model |
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