Joules (J) and millijoules (mJ) are both units for measuring energy. If you need to convert J to millijoules, this short guide will show you how.
Understanding the Conversion Factor
To convert joules to millijoules, it’s important to know the conversion factor, which is simply the relationship between the two units of measurement.
- 1 joule (J) = 1000 millijoules (mJ)
So, to convert from joules to millijoules, you simply multiply the joule value by 1000.
For example, if you wanted to convert 2 joules to millijoules, you’d perform the following calculation:
- 2 J = 2 1000 mJ = 2000 mJ
Practical applications and examples
The ability to convert between joules and millijoules comes in handy in lots of real-world scenarios, especially in science and engineering.
Here’s a handy little conversion table to keep in mind:
- 0.1 J = 100 mJ
- 1 J = 1000 mJ
- 10 J = 10000 mJ
Worked example
Let’s say you want to convert 15 J to mJ.
You’d multiply 15 J by 1000 mJ:
15 J = 15 × 1000 mJ = 15000 mJ
The Bottom Line
Converting joules to millijoules is simple: just multiply by 1000. Understanding how to convert between units is essential for accuracy in calculations and measurements.
And if you need to go the other way, converting millijoules to joules, just divide by 1000.