Energy Conversion Calculator

Created by Dominik Czernia, PhD candidate
Reviewed by Bogna Szyk
Last updated: May 18, 2022
Conversion between units of energy is given by use of appropriate factors. Choose the required input and output units in the menus.
Dominik Czernia, PhD candidate
SI unit for energy
Joule
J
Big energies
Calorie
kcal
Watt-hour
kWh
Therm
therms
Ton of TNT
tons of TNT
Microscopic world
Electronovolt
eV
Temperature
K
Reciprocal length
cm
⁻¹
Mass
me
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Weight converter

The distinction between mass and weight should always be kept in mind. While mass is a property of an object itself, weight is the force it exerts, which is dependent on e.g. the strength of local gravity. The mass of an object is identical on Earth and on the moon, while the weight is different.
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