Convert Degrees (°) to Mils
1 degree equals 17.7778 mils.
Degree to Mil Converter
How to Convert Degree to Mil
1 degree = 17.7778 mils
Mil = Degree × 17.7778
Example: 1° × 17.7778 = 17.7778 mil
Reverse Conversion
To convert mils back to degrees:
- Remember, 1 mil equals 0.05625 degrees.
- To convert 17.7778 mil to°, multiply
17.7778 x 0.05625, resulting in1°.
Common Degree to Mil Conversions
| Degree | Mil | Actions |
|---|---|---|
| 1 degree | 17.7778 mils | |
| 5 degrees | 88.8889 mils | |
| 10 degrees | 177.778 mils | |
| 25 degrees | 444.444 mils |
| Degree | Mil | Actions |
|---|---|---|
| 50 degrees | 888.889 mils | |
| 100 degrees | 1777.78 mils | |
| 500 degrees | 8888.89 mils | |
| 1000 degrees | 17777.8 mils |
Degrees to mils Conversion Table
Reference table with common degrees to mils conversions. All values calculated with high precision.
Degrees to Mils Table
0.0001 to 12
Degrees to Mils Table
1 to 100000
Mils to Degrees Table
100 to 10000000
Definition of Degree
- Definition
The degree (°) is a non-SI unit of plane angle defined as 1/360 of a full rotation.
It is accepted for use with the SI due to its long-standing practical importance in navigation, surveying, engineering, astronomy, geodesy, and daily measurement.
- Exact factor
- 1° = π/180 rad (exact)
- Examples
- 90° = π/2 rad
- 45° = π/4 rad
- 360° = 1 turn
Definition of Mil
- Definition
The mil is a military angular unit used in ballistics, optics, and range estimation.
In the NATO system, a full circle is divided into 6400 mils.
- Exact factor
- 1 turn = 6400 mil
- Examples
- 100 mil ≈ 5.625°
- 1 mil ≈ 0.0009817 rad
About the Degree
Facts & Uses
- Universal everyday angle unit: 1 full circle = 360°. Used in navigation, geometry, surveying, and almost all non-mathematical contexts.
- Standard for compass headings, latitude/longitude, roof pitch, camera fields of view, and geometric construction.
- Subdivisions: 1° = 60 arcminutes (′) = 3600 arcseconds (″); commonly used in astronomy and high-precision surveying.
- Common reference angles: 30°, 45°, 60°, 90° (right angle), 180° (straight angle), 360° (full circle).
Curiosities
- The 360° convention dates back to ancient Babylonian astronomy (~2400 BCE), based on a sexagesimal (base-60) number system and an approximation of 360 days per year.
- 360 was kept partly because of its many divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24… — making fractions of a circle easy without decimals.
- The degree is not part of the SI but is one of the units accepted for use with the SI system.
- Approximate equivalents: 1° = π/180 rad ≈ 0.01745 rad ≈ 1.111 grad.
Sources
About the Mil
Facts & Uses
- NATO mil = 1/6400 of a full circle ≈ 0.05625° ≈ 0.000982 rad. Used by NATO militaries for artillery aiming and rifle scope adjustment.
- Standard in military ballistics, artillery fire control, and precision long-range shooting (mil-dot reticles on rifle scopes).
- Convenient because 1 mil ≈ 1 m at 1000 m distance — making angular size to range estimation simple in the field.
- Different national militaries use slightly different mil definitions: NATO/US 6400 mils per circle, Soviet/Warsaw Pact 6000 mils, Sweden 6300 mils.
Curiosities
- The "true milliradian" is exactly 1/1000 rad = 1/(2000π) of a circle ≈ 6283 mils per circle. The NATO mil was rounded to 6400 for easier mental arithmetic.
- A rifle scope with 0.1 mil clicks moves the point of impact 1 cm at 100 m, or 10 cm at 1000 m — the precision standard for tactical optics.
- The mil-dot reticle uses dots spaced 1 mil apart, allowing shooters to estimate target range by knowing the target size: range (m) = target size (m) × 1000 / mils.
- Approximate equivalents: 1 NATO mil ≈ 0.05625° ≈ 3.375 arcminutes ≈ 0.000982 rad.
Sources
Frequently Asked Questions
How many mils are in one degree?
One degree equals 17.7778 mils. To convert, multiply the degree value by 17.7778. For the reverse, divide the mil value by 17.7778 (or multiply by 0.05625).
What is 10 degrees in mils?
10 degrees = 177.78 mils. This is one of the most commonly searched conversions for this pair.
How precise is the degree-to-mil conversion?
The factor 17.7778 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.
Looking for the reverse? Convert Mil to Degree
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