ENERGY
Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
ResultmJ → WhConvert millijoule to watt-hour
EVERYDAY · ENGINEERING · SCIENCE
Unit conversion. Made clear.
Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.
520units ready to convert
HOW IT IS CALCULATED
Convert through joule
Enter a millijoule value to calculate watt-hour with full internal precision before display rounding.
Display precisionAuto · 12 significant digits
Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| ergfrom mJ | erg | Interactive |
| microjoulefrom mJ | µJ | Interactive |
| millijoulefrom mJ | mJ | Interactive |
| joulefrom mJ | J | Interactive |
| kilojoulefrom mJ | kJ | Interactive |
| megajoulefrom mJ | MJ | Interactive |
| gigajoulefrom mJ | GJ | Interactive |
| watt-hourfrom mJ | Wh | Interactive |
| kilowatt-hourfrom mJ | kWh | Interactive |
| megawatt-hourfrom mJ | MWh | Interactive |
| thermochemical caloriefrom mJ | calₜₕ | Interactive |
| thermochemical kilocaloriefrom mJ | kcalₜₕ | Interactive |
| International Table caloriefrom mJ | calIT | Interactive |
| International Table British thermal unitfrom mJ | BtuIT | Interactive |
| U.S. thermfrom mJ | therm US | Interactive |
| foot pound-forcefrom mJ | ft·lbf | Interactive |
| electronvoltfrom mJ | eV | Interactive |
| kiloelectronvoltfrom mJ | keV | Interactive |
| megaelectronvoltfrom mJ | MeV | Interactive |
| gigaelectronvoltfrom mJ | GeV | Interactive |
| ton of TNTfrom mJ | t TNT | Interactive |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.