What is Atlas Ballistics?

Atlas Ballistics manages 2 data types including support articles. Helps you organize, track, and share your work in 1 place for teams and solo users.

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Free Ballistic Tool

MOA to MIL Calculator

Convert MOA to MIL, MIL to MOA, MIL to inches or MOA to inches at any distance — and get the exact number of clicks to dial on your turret.

Correction

Distance to target

Amount

Amount is in

Uses true MOA (1.047 in per 100 yd), not the rounded 1-inch approximation. Results update as you type.

MOA

0.95

MIL

0.28

Inches

1.00

Clicks to dial

1/4 MOA turret3.8 clicks

1/8 MOA turret7.6 clicks

0.1 MIL turret2.8 clicks

0.05 MIL turret5.6 clicks

At 100 yards

1 MOA covers1.05 in

1 MIL covers3.60 in

Your correction2.5 cm

MOA and MIL to inches, without the confusion

Both units are angles, not lengths. That is the whole idea: an angular correction works at every distance, so 2 MOA of elevation is 2 MOA whether the target is at 200 yards or 900. What changes is how much ground that angle covers when it reaches the target.

A minute of angle is one sixtieth of a degree, which works out to 1.047 inches per 100 yards. A milliradian is one thousandth of a radian, which covers 3.6 inches per 100 yards, or a tidy 10 cm at 100 metres. That metric neatness is why MIL took over in precision rifle circles.

The practical mistake is mixing systems. A MIL reticle on a MOA turret means every hold you read has to be converted before you dial it, which is exactly the sort of arithmetic that goes wrong under a timer. Match the reticle to the turret and the problem disappears.

How this calculator works

One MOA is 1/60 of a degree, which is 1.047 in at 100 yd. One mil is 1/1000 of the range, which is 3.6 in at 100 yd. We convert inches to angle at your distance, then divide by your turret click value to get clicks.

Worked example: 3 MOA at 600 yd is 3 × 1.047 × 6 ≈ 18.8 in. That same 18.8 in is 18.8 ÷ (3.6 × 6) ≈ 0.87 mil, or about 9 clicks on a 0.1 mil turret.

Get the full solver in your pocket

Atlas Ballistics runs this same engine on your phone — with wind, spin drift, Coriolis, aerodynamic jump, truing from real shots, saved rifle and ammo profiles, and range cards that work offline.

Download on the App Store

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Frequently asked questions

1 MIL is 3.6 inches at 100 yards, 7.2 inches at 200 yards and 36 inches at 1,000 yards. To convert MIL to inches, multiply MIL × 3.6 × (distance in yards ÷ 100). In metric it is a neat 10 cm at 100 metres.

1 MOA is 1.047 inches at 100 yards, 2.09 inches at 200 yards and 10.47 inches at 1,000 yards. To convert MOA to inches, multiply MOA × 1.047 × (distance in yards ÷ 100). Pick Inches above to go the other way.

One milliradian equals 3.43775 MOA, so a 0.1 MIL click moves your impact about 0.344 MOA. Going the other way, 1 MOA is 0.2909 MIL. Those ratios are fixed and never change with distance — only the inch value on target does.

No, and the difference matters at distance. True MOA is 1.047 inches per 100 yards. Some shooters round it to 1 inch, which is called Shooter's MOA or IPHY. At 100 yards the error is under half an inch, but at 1,000 yards a 10 MOA correction is off by nearly 5 inches.

Measure how far the shot landed from center in inches, enter it above with your target distance, and read the click count for your turret. A 1/4 MOA turret needs four clicks per MOA, and a 0.1 MIL turret needs ten clicks per MIL.

Neither is more accurate. MIL is a decimal system that is faster for holdovers and for talking corrections with a spotter, which is why most precision rifle competitors use it. MOA lines up more naturally with inches and yards. The important thing is that your turret and your reticle use the same unit.

Usually the turret is not tracking truly, or the reticle and turret units differ. Shoot a tall-target test to verify your scope moves what it claims, then use the measured value. Atlas Ballistics lets you store a per-scope tracking correction so your dialed solution matches what the rifle actually does.

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