Millijoules: conversions & definition
Millijoules (mJ) represent energy. One unit equals 10^-3 J. One joule is one newton-meter of work or one watt-second of energy.
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Each row converts one mJ. Open a converter to enter any value and see its formula, worked example and reference table. Results below are rounded to 10 significant digits.
| Convert to | Equivalent value | Calculator |
|---|---|---|
| Joules (J) | ≈ 0.001 | Convert mJ to J |
| Kilojoules (kJ) | ≈ 0.000001 | Convert mJ to kJ |
| Microjoules (µJ) | ≈ 1,000 | Convert mJ to µJ |
| Megajoules (MJ) | ≈ 1e-9 | Convert mJ to MJ |
| Nanojoules (nJ) | ≈ 1,000,000 | Convert mJ to nJ |
| Gigajoules (GJ) | ≈ 1e-12 | Convert mJ to GJ |
| Centijoules (cJ) | ≈ 0.1 | Convert mJ to cJ |
| Decijoules (dJ) | ≈ 0.01 | Convert mJ to dJ |
| Hectojoules (hJ) | ≈ 0.00001 | Convert mJ to hJ |
| Decajoules (daJ) | ≈ 0.0001 | Convert mJ to daJ |
| Picojoules (pJ) | ≈ 1,000,000,000 | Convert mJ to pJ |
| Terajoules (TJ) | ≈ 1e-15 | Convert mJ to TJ |
| Femtojoules (fJ) | ≈ 1e+12 | Convert mJ to fJ |
| Petajoules (PJ) | ≈ 1e-18 | Convert mJ to PJ |
| Attojoules (aJ) | ≈ 1e+15 | Convert mJ to aJ |
| Exajoules (EJ) | ≈ 1e-21 | Convert mJ to EJ |
| Zeptojoules (zJ) | ≈ 1e+18 | Convert mJ to zJ |
| Zettajoules (ZJ) | ≈ 1e-24 | Convert mJ to ZJ |
| Yoctojoules (yJ) | ≈ 1e+21 | Convert mJ to yJ |
| Yottajoules (YJ) | ≈ 1e-27 | Convert mJ to YJ |
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