degrees to mils (US Army) Converter
Convert degrees to mils (US Army) instantly with a reference conversion table.
| degrees | mils (US Army) |
|---|
How to convert degrees to mils (US Army)
Enter your value
Type the number of degrees you want to convert into the left box. The result in mils (us army) appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — mils (US Army) to degrees. Your current value carries across so you don't have to re-enter anything.
About degrees and mils (US Army)
Degrees divide a circle into 360 units, a convention dating back to ancient Babylonian astronomy, while the NATO/US Army mil system divides a circle into 6,400 units specifically so that at 1,000 meters range, 1 mil subtends almost exactly 1 meter. This "mil relation" makes mils far more practical than degrees for artillery, mortar, and sniper range-and-correction calculations in the field.
Degrees and mils in military and tactical use
The mil relation formula for range and correction
The core reason mils exist is the simple formula: mils = size in meters ÷ range in kilometers. This lets a forward observer estimate a target's size, or convert a fire-correction distance into an angular adjustment, using basic division rather than trigonometry — critical when calculations need to happen quickly under field conditions.
Not all mil systems are the same
NATO and the US Army use 6,400 mils per circle, Russia and former Soviet-bloc militaries use 6,000 mils per circle, and the mathematically "true" milliradian used in scientific and optics contexts is about 6,283.19 per circle. Coordinating with allied or foreign forces sometimes requires knowing which mil convention the other party's equipment uses.
Dual-scale compasses and land navigation
Military lensatic compasses typically show both a degree scale and a mil scale on the same dial, since land navigation traditionally uses degrees (or the related "grad" system in some countries) while fire-support coordination uses mils. Being fluent in converting between the two is a standard field skill.
| degrees | mils (US Army) |
|---|---|
| 0.0563 | 1.001 |
| 1 | 17.78 |
| 5 | 88.89 |
| 10 | 177.8 |
| 30 | 533.3 |
| 45 | 800 |
Frequently asked questions
How do I convert degrees to mils (US Army)?
To convert degrees to mils (US Army), multiply by 17.7778. Or use the calculator above for instant results.
How many mils (US Army) are in 1 degree?
1 degree equals 17.7778 mils (US Army).
Why does the military use 6,400 mils in a circle instead of 360 degrees?
The mil system is designed so that at 1,000 meters range, 1 mil subtends almost exactly 1 meter. This "mil relation" lets artillery crews estimate target size or corrections using simple division rather than trigonometry.
Is the military mil the same as a milliradian?
Not quite. A true milliradian divides a circle into about 6,283.19 units. NATO rounds this to 6,400 mils per circle, while Russia uses 6,000 mils per circle — three subtly different systems.
How is the mil system used in artillery and mortar fire control?
Forward observers use mils to convert an observed error in meters directly into an angular correction. For example, a round landing 50m left at 2,000m range needs a 25-mil correction — 50 ÷ 2.
Do compasses and land navigation also use mils?
Yes — military lensatic compasses typically show both a degree scale and a mil scale, since land navigation and fire-support coordination sometimes need the same bearing communicated in either system.
Is the degrees to mils (US Army) converter free?
Yes, the degrees to mils (US Army) converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.