Gradians to Mils (NATO) Converter

Enter the angle in gradians below to get the value converted to mils.


Result in Mils:

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1g = 16 mil

Do you want to convert mils to gradians?

How to Convert Gradians to Mils

To convert a measurement in gradians to a measurement in mils, multiply the angle by the following conversion ratio: 16 mils/gradian.

Since one gradian is equal to 16 mils, you can use this simple formula to convert:

mils = gradians × 16

The angle in mils is equal to the angle in gradians multiplied by 16.

For example, here's how to convert 5 gradians to mils using the formula above.
mils = (5g × 16) = 80 mil

How Many Mils Are in a Gradian?

There are 16 mils in a gradian, which is why we use this value in the formula above.

1g = 16 mil

Gradians and mils are both units used to measure angle. Keep reading to learn more about each unit of measure.

What Is a Gradian?

A gradian is equal to 1/400 of a revolution or circle, or 9/10°. The grad, or gon, is more precisely defined as π/200, or 1.570796 × 10-2 radians.[1]

This unit simplifies the measurements of right angles, as 90° is equal to 100 gradians.

Right angles in gradians
0 grad
100 grad90°
200 grad180°
300 grad270°
400 grad360°

A gradian is sometimes also referred to as a grad, gon, or grade. Gradians can be abbreviated as g, and are also sometimes abbreviated as gr or grd. For example, 1 gradian can be written as 1g, 1 gr, or 1 grd.

In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units.

Learn more about gradians.

What Is a Mil?

A mil, short for milliradian, is equal to 1/6,400 of a circle. The mil used by the US military and NATO forces is slightly different than the true value of a milliradian, which is equal to 1/6,283 of a circle.

During World War I the US adopted what is now the NATO mil to replace degrees and minutes for use in artillery sights. They opted to round mils to 6,400 per circle for simplicity at the time. Today, the mil is commonly used to measure adjustment of sights and scopes of firearms.

There is rightfully much confusion as a result of the mil adopted by the US military and NATO being slightly different than the milliradian.

A mil is sometimes also referred to as an angular mil. Mils can be abbreviated as mil; for example, 1 mil can be written as 1 mil.

Learn more about mils.

Gradian to Mil Conversion Table

Table showing various gradian measurements converted to mils.
Gradians Mils (NATO)
1g 16 mil
2g 32 mil
3g 48 mil
4g 64 mil
5g 80 mil
6g 96 mil
7g 112 mil
8g 128 mil
9g 144 mil
10g 160 mil
11g 176 mil
12g 192 mil
13g 208 mil
14g 224 mil
15g 240 mil
16g 256 mil
17g 272 mil
18g 288 mil
19g 304 mil
20g 320 mil
21g 336 mil
22g 352 mil
23g 368 mil
24g 384 mil
25g 400 mil
26g 416 mil
27g 432 mil
28g 448 mil
29g 464 mil
30g 480 mil
31g 496 mil
32g 512 mil
33g 528 mil
34g 544 mil
35g 560 mil
36g 576 mil
37g 592 mil
38g 608 mil
39g 624 mil
40g 640 mil


  1. Ambler Thompson and Barry N. Taylor, Guide for the Use of the International System of Units (SI), National Institute of Standards and Technology,

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