What is the exact MOA to Mil conversion factor?

1 Mil (milliradian) = 3.43775 MOA exactly (derived from 1 radian = 1000 mils = 3437.75 MOA). Some sources round to 3.438 MOA; this tool uses the full precision value.

What is the difference between Mil and MRAD?

Mil and MRAD (milliradian) are the same thing in the context of rifle scopes. Both refer to 1/1000th of a radian. The term "Mil" is common in tactical/military use while "MRAD" is used in precision rifle sports — they are interchangeable.

Which is more precise — MOA or Mil scopes?

Neither is inherently more precise. A typical MOA scope has 1/4 MOA clicks (~0.26 in at 100 yd) and a Mil scope has 0.1 Mil clicks (~0.36 in at 100 yd). MOA scopes offer finer clicks in imperial units; Mil scopes pair naturally with metric ranging and spotting calls.

How many MOA is 1 Mil at 100 yards?

1 Mil = 3.43775 MOA at any distance. At 100 yards, 1 Mil subtends approximately 3.6 inches and 1 MOA subtends approximately 1.047 inches.

Can I use this for artillery or other applications?

Yes. The angular conversion is universal — the same ratio applies to any angular measurement system using MOA and milliradians, including artillery, surveying, and optics outside of rifles.

MOA to Mil Converter

Convert Minutes of Angle (MOA) to milliradians (Mil/MRAD) and back for rifle scope adjustments.

MOA / Mil Converter

Minutes of Angle (MOA)

MOA

Milliradians (Mil / MRAD)

Mil

Common Scope Clicks — set MOA

Common Scope Clicks — set Mil

Result

Enter a value on the left to see the conversion.

Reference Table

MOA	Mil / MRAD	Common Use

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Summary

MOA (Minute of Angle) and Mil (milliradian) are two angular measurement systems used on rifle scopes and long-range shooting equipment. One MOA equals approximately 1.047 inches at 100 yards, while one Mil equals 3.6 inches at 100 yards (or 10 cm at 100 m). This tool converts between the two systems instantly so you can translate scope click values, wind calls, or elevation adjustments between MOA and Mil/MRAD scopes.

How it works

Enter an MOA value in the top field or a Mil value in the bottom field.
The converter uses the exact ratio: 1 Mil = 3.43775 MOA (derived from (360 × 60) / (2π × 1000) = 21600 / 2000π).
Both fields update simultaneously as you type — change either one.
Use the preset buttons for common scope click increments (0.25 MOA, 0.1 Mil, etc.).
The reference table shows common benchmark values side by side for quick field lookup.

Use cases

Translate a wind hold from a Mil-dot reticle to MOA turret clicks.
Convert your DOPE (Data On Previous Engagements) when switching scope types.
Cross-check a shooting partner's elevation call given on a different measurement system.
Calculate scope adjustment increments before a match or long-range training session.
Learn the relationship between MOA and Mil for new precision shooters.
Verify a manufacturer's click-value spec (e.g. 1/4 MOA vs 0.1 Mil per click).

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu