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Energy

Just how much energy is 100 kilojoules?

Daily life

100 kJ

Scale

ENERGY STORED OR TRANSFERRED

100 kilojoules

The quantity is exact as entered.

100 kJEnergy
0
Phone battery

A phone battery stores electrical energy to power a mobile phone.

54 kJEnergy
0
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.

A little perspective

100 kilojoules is about 1.85 times the energy of a phone battery.

Measurements, assumptions & sources +

100 kilojoules

Energy: 100 kJ; definition.

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

Phone battery

Energy: 54 kJ; defined energy model.

A defined 15 Wh stored-energy battery. Actual devices and usable energy vary.

Defined examples — our methodology

The marked energy is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 100 kilojoules with the energy of a phone battery. The notes below explain how each value was chosen.

100 kilojoules

100 kJ

Energy · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Phone battery

54 kJ

Energy · defined energy model

A defined 15 Wh stored-energy battery. Actual devices and usable energy vary.

Comparing
Energy ↔ Energy
Relative size
100 kilojoules is about 1.85 times the energy of a phone battery. 100 kilojoules is approximately 85.2% greater than the energy of a phone battery.

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 phone battery: 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.

100,000 Jjoules
0.027778 kWhkilowatt-hours
23.901 kcalkilocalories

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