NATO mils to milliradians
Type a value in NATO mils to see it in milliradians straight away, or type in the second box to convert back.
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How to use it
- Type the value in the NATO mils box.
- Read the result in milliradians as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
mrad = mil × 0.9817477042
Multiply the value in NATO mils by 0.9817477042 to get milliradians.
Example
To convert 25 mil to milliradians: 25 × 0.9817477042 = 24.5437 mrad.
Conversion table
| NATO mils (mil) | Milliradians (mrad) |
|---|---|
| 1 | 0.981748 |
| 2 | 1.9635 |
| 3 | 2.94524 |
| 5 | 4.90874 |
| 10 | 9.81748 |
| 20 | 19.635 |
| 25 | 24.5437 |
| 50 | 49.0874 |
| 100 | 98.1748 |
| 250 | 245.437 |
| 500 | 490.874 |
| 1,000 | 981.748 |
About the units
- NATO mil
- The NATO mil is 1/6400 of a full turn, exactly 0.05625 degree, used for artillery laying and military compasses.
- Milliradian
- A milliradian is one thousandth of a radian, about 0.0573 degree, used on rifle scopes where it is called MIL or MRAD.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many milliradians are in one NATO mil?
1 mil = 0.981748 mrad exactly.
How do I convert NATO mils to milliradians?
Use mrad = mil × 0.9817477042. For example, 25 mil = 24.5437 mrad.
How many NATO mils are in one milliradian?
1 mrad = 1.01859 mil.
Why does my calculator give a strange answer for sine?
It is probably set to radians (RAD) while you are entering degrees. The sine of 30 degrees is 0.5, but the sine of 30 radians is about -0.988, so switch to DEG first.
What is the difference between MOA and MIL on a rifle scope?
MOA is an arcminute, 1/60 of a degree, while a MIL is a milliradian, about 3.438 MOA. At 100 meters a 0.1 MIL click moves impact 1 cm, and 1 MOA moves it about 2.9 cm.