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.
Australia is fully metric under the National Measurement Act 1960; imperial units appear only in trade with the US and in older documents.
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 Measurement Institute (NMI) — Australia's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.