Degrees to NATO Mils Converter
Convert degrees to NATO mils — multiply by 17.778. Results update as you type; exact factors shown.
One degree is 17.7778 NATO mil (1/6400 turn) — see the exact factor, not a rounded rule of thumb.
How the degrees to nato mils converter works
Angles convert through the radian. A full turn is 2π radians = 360° = 400 gon = 6,400 NATO mils. A degree is 60 arcminutes, an arcminute 60 arcseconds.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common angle conversions
| From | To | Units |
|---|---|---|
| 0.1 ° | 1.7778 mil | degrees to NATO mil (1/6400 turn) |
| 0.5 ° | 8.8889 mil | degrees to NATO mil (1/6400 turn) |
| 1 ° | 17.7778 mil | degree to NATO mil (1/6400 turn) |
| 5 ° | 88.8889 mil | degrees to NATO mil (1/6400 turn) |
| 10 ° | 177.7778 mil | degrees to NATO mil (1/6400 turn) |
| 30 ° | 533.3333 mil | degrees to NATO mil (1/6400 turn) |
| 45 ° | 800 mil | degrees to NATO mil (1/6400 turn) |
| 60 ° | 1,066.6667 mil | degrees to NATO mil (1/6400 turn) |
| 90 ° | 1,600 mil | degrees to NATO mil (1/6400 turn) |
| 180 ° | 3,200 mil | degrees to NATO mil (1/6400 turn) |
| 270 ° | 4,800 mil | degrees to NATO mil (1/6400 turn) |
| 360 ° | 6,400 mil | degrees to NATO mil (1/6400 turn) |
Units in this converter and their exact factors
| Unit | Symbol | One unit in radians |
|---|---|---|
| degree | ° | 0.0174532925 radian |
| radian | rad | 1 radian |
| gradian (gon) | gon | 0.0157079633 radian |
| arcminute | ′ | 0.0002908882 radian |
| arcsecond | ″ | 0.0000048481 radian |
| turn (revolution) | rev | 6.2831853072 radian |
| NATO mil (1/6400 turn) | mil | 0.0009817477 radian |
FAQFrequently asked questions about angle conversion
How many mils in a degree?
17.778 NATO mils.
What is 90 degrees?
1,600 mils.
Why do artillery and optics use mils?
Because at small angles a mil is one unit of width per thousand of range, which makes range estimation arithmetic trivial.
What is the difference from a true milliradian?
A true milliradian gives 6,283 per turn against NATO's 6,400 — about 1.9% apart.
What is 360 degrees?
6,400 mils.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.