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Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.000000001 MJ1 mJ = 0.000000001 MJ
EVERYDAY · ENGINEERING · SCIENCE
mJ to MJ Converter
Convert millijoule (mJ) to megajoule (MJ). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through joule
Enter a millijoule value to calculate megajoule with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| ergfrom mJ | erg | 10000 |
| microjoulefrom mJ | µJ | 1000 |
| millijoulefrom mJ | mJ | 1 |
| joulefrom mJ | J | 0.001 |
| kilojoulefrom mJ | kJ | 0.000001 |
| megajoulefrom mJ | MJ | 0.000000001 |
| gigajoulefrom mJ | GJ | 1e-12 |
| watt-hourfrom mJ | Wh | 0.000000277778 |
| kilowatt-hourfrom mJ | kWh | 2.77778e-10 |
| megawatt-hourfrom mJ | MWh | 2.77778e-13 |
| thermochemical caloriefrom mJ | calₜₕ | 0.000239006 |
| thermochemical kilocaloriefrom mJ | kcalₜₕ | 0.000000239006 |
| International Table caloriefrom mJ | calIT | 0.000238846 |
| International Table British thermal unitfrom mJ | BtuIT | 0.000000947817 |
| U.S. thermfrom mJ | therm US | 9.48043e-12 |
| foot pound-forcefrom mJ | ft·lbf | 0.000737562 |
| electronvoltfrom mJ | eV | 6.24151e15 |
| kiloelectronvoltfrom mJ | keV | 6241510000000 |
| megaelectronvoltfrom mJ | MeV | 6241510000 |
| gigaelectronvoltfrom mJ | GeV | 6241510 |
| ton of TNTfrom mJ | t TNT | 2.39006e-13 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
mJ to MJ Conversion Reference
Millijoule (mJ) and megajoule (MJ) are units of energy & work. Use this page to convert in either direction.
Conversion Examples
| Millijoule (mJ) | Megajoule (MJ) |
|---|---|
| 1 mJ | 0.000000001 MJ |
| 5 mJ | 0.000000005 MJ |
| 10 mJ | 0.00000001 MJ |
| 100 mJ | 0.0000001 MJ |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
MJ to mJ (megajoule to millijoule)
Related Energy & work Conversions
mJ to erg (millijoule to erg)mJ to µJ (millijoule to microjoule)mJ to J (millijoule to joule)mJ to kJ (millijoule to kilojoule)mJ to GJ (millijoule to gigajoule)mJ to Wh (millijoule to watt-hour)mJ to kWh (millijoule to kilowatt-hour)mJ to MWh (millijoule to megawatt-hour)mJ to calₜₕ (millijoule to thermochemical calorie)mJ to kcalₜₕ (millijoule to thermochemical kilocalorie)mJ to calIT (millijoule to International Table calorie)mJ to BtuIT (millijoule to International Table British thermal unit)mJ to therm US (millijoule to U.S. therm)mJ to ft·lbf (millijoule to foot pound-force)mJ to eV (millijoule to electronvolt)mJ to keV (millijoule to kiloelectronvolt)mJ to MeV (millijoule to megaelectronvolt)mJ to GeV (millijoule to gigaelectronvolt)mJ to t TNT (millijoule to ton of TNT)