MOA/MIL Scope Adjustment Calculator

A fast scope-adjustment calculator for turning a measured miss into MOA, MIL, click count, and turret direction.

You should not need a spreadsheet at the bench just to move a group.

Enter the distance, measure how far the shot landed from your point of aim, pick your scope's click value, and the calculator gives you the correction in plain English: how many clicks, which direction, and what that means in both MOA and MIL.

Tool / Field reference

Scope adjustment calculator

Click count and direction in MOA and MIL.

Distance you took the shot from.

Where did your shot land vs. point of aim?
Vertical
Horizontal

How far above/below and left/right of your aim point the shot landed.

Check your scope manual. Most hunting and range scopes are 1/4 MOA; most precision/tactical scopes are 0.1 MIL.

Elevation Turn UP
8 clicks
MOA
2.00
MIL
0.58
Windage Turn RIGHT
4 clicks
MOA
1.00
MIL
0.29

1 MOA -
1 MIL -
1 click -

How this works

What's a MOA?

A Minute of Angle is 1/60th of a degree. At 100 yards 1 MOA covers about 1 inch (1.047 inches, exactly). At 200 yards it's about 2 inches, at 300 yards about 3 inches. MOA grows linearly with distance.

What's a MIL?

A milliradian (MIL) is 1/1000th of a radian. At 100 yards 1 MIL covers about 3.6 inches. At 100 metres, exactly 10 cm. MIL is more native to metric thinking.

How many clicks?

Most scopes adjust in 1/4 MOA or 0.1 MIL per click. The scope's manual will tell you; the value is usually printed on the turret itself.

Which way to turn?

The general rule: turn the turret in the direction you want the bullet to move. Low shots, turn UP. Left shots, turn RIGHT. Most turrets have arrows printed beside the dial.

Direct vs. inverted dials

Some older or budget scopes have reversed markings. If you make an adjustment and the impact moves the wrong way, your scope is inverted - reverse the next adjustment.

Always verify

After adjusting, fire 3 to 5 rounds to confirm the new zero. Mechanical clicks aren't always perfectly true to spec.

Always confirm by firing follow-up rounds. Mechanical scopes can have small tracking errors - verify with a known-distance target.

Zeroing Note

Use this for sight-in and correction math, then confirm on paper with follow-up rounds. Scope tracking, target measurement, wind, ammunition, and shooter input can all add small errors. The calculator gives the adjustment; the next group tells you whether the rifle agreed.

Math Note

The tool uses the standard angular approximations most shooters use at the range: 1 MOA is 1.047 inches at 100 yards, 1 MIL is 3.6 inches at 100 yards, and 1 MIL is 10 cm at 100 metres.