Degrees to Milliradians Calculator

Category: Various Measurements/Units
- November 18, 2025
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Convert between degrees and milliradians (mils) with this calculator. Milliradians are used in military, artillery, and surveying applications for angular measurements.

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About Milliradians

A milliradian (mil) is an angular measurement unit used in artillery, surveying, and shooting sports. Different organisations use slightly different definitions:

Common Milliradian Standards
  • NATO: 6400 mils = 360° (used by NATO countries)
  • Warsaw Pact/Soviet: 6000 mils = 360° (used by former Warsaw Pact countries)
  • True Milliradian: 2π × 1000 ≈ 6283.18 mils = 360° (based on true radian measure)
Uses of Milliradians
  • Artillery fire control and adjustment
  • Sniper and precision shooting
  • Land surveying and navigation
  • Range estimation using the mil-dot reticle
Practical Application

The mil-relationship formula allows for quick field calculations:
Size in metres = (Size in mils × Distance in kilometres) ÷ 1000

This is useful for range estimation and target sizing in military and shooting applications.

Understanding Degrees and Milliradians

Degrees and milliradians are both units used to measure angles. Degrees are more familiar to most people since they’re commonly used in everyday life. A full circle contains 360 degrees. Milliradians, or mils, are often used in specialised fields like military and surveying. In fact, there are 6400 milliradians in a full circle according to NATO standards. This calculator helps you switch between these two systems easily.

Why Use the Degrees to Milliradians Calculator?

This calculator is perfect for anyone needing quick and accurate angle conversions. It’s especially useful for:

  • Military personnel who need precise measurements.
  • Surveyors working on land measurements.
  • Shooting Sports enthusiasts calculating range and accuracy.
  • Students learning about angular measurements.

Conversion Options Made Simple

When using the calculator, you can choose the type of conversion you need. You can convert from degrees to milliradians or the Other way around. Additionally, you can select your preferred mil standard, like NATO or True Milliradians. This flexibility ensures you can make the right calculation based on your specific needs.

Inputting Values for Accurate Results

Inputting values into the calculator is straightforward. You simply enter the number of degrees or milliradians you want to convert. There’s also an option to adjust decimal places for more precision. Whether you’re dealing with small angles or extensive measurements, this calculator can handle it all.

Getting Your Conversion Results

After you input your values, the calculator provides instant results. Not only will you see your primary result, but you’ll also find equivalent values in other standards. This feature is especially helpful if you need to compare results across different measuring systems.

Understanding the Conversion Formulas

The calculator displays the formulas used for conversions. For instance, to convert degrees to NATO mils, you can use the formula: mils = degrees × (6400 ÷ 360). This transparency helps users understand how the calculations are formed, making the tool both educational and practical.

Common Standards for Milliradians

There are several standards for milliradians, which can sometimes create confusion. Here are the most common ones:

  • NATO: 6400 mils = 360°
  • Warsaw Pact/Soviet: 6000 mils = 360°
  • True Milliradian: Approximately 6283.18 mils = 360°

Practical Applications of Milliradians

Milliradians have many practical uses, especially in fields where precision is key. They are commonly used for:

  • Artillery fire control and adjustment.
  • Sniper and precision shooting.
  • Land surveying and navigation.
  • Estimating ranges using mil-dot reticles.