Convert millijoule to j
Millijoule
The millijoule (mJ) is a unit of energy equal to one thousandth of a joule. It is used in pulsed laser technology, electronics, and medical devices to quantify small but significant energy levels. Typical pulsed laser outputs used in dermatology and ophthalmology are often rated in millijoules.
Joule
The joule (/dʒaʊ,dʒuːljawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m). It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889).
Millijoule to Joule conversion table
| Millijoule | Joule | Joule | Millijoule |
|---|---|---|---|
| 1 | 0.001 | 1 | 1000 |
| 2 | 0.002 | 2 | 2000 |
| 3 | 0.003 | 3 | 3000 |
| 5 | 0.005 | 5 | 5000 |
| 10 | 0.01 | 10 | 10000 |
| 20 | 0.02 | 20 | 20000 |
| 25 | 0.025 | 25 | 25000 |
| 50 | 0.05 | 50 | 50000 |
| 100 | 0.1 | 100 | 100000 |
| 250 | 0.25 | 250 | 250000 |
| 500 | 0.5 | 500 | 500000 |
| 1000 | 1 | 1000 | 1E+06 |
How to convert Millijoule to Joule
1 mJ = 0.001 J. To convert any value, multiply it by 0.001. For example, 25 mJ = 0.025 J.
Frequently asked questions
- How many J are there in one mJ?
- One mJ is equal to 0.001 J.
- How do you convert Millijoule to Joule?
- Multiply the value in Millijoule by 0.001 to get the result in Joule.
- How much is 25 mJ in J?
- 25 mJ is equal to 0.025 J.
- How do you convert Joule back to Millijoule?
- Divide by the same factor: multiply the value in Joule by 1000 to get Millijoule.