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.
Scope click calculator (MOA and MIL)
Use the calculator as a scope click calculator when you know the distance, the miss distance, and the click value on your turret. It converts that correction into clicks, MOA, MIL, and the direction to dial.
Scope adjustment calculator
Click count and direction in MOA and MIL.
- MOA
- 2.00
- MIL
- 0.58
- MOA
- 1.00
- MIL
- 0.29
Large adjustment - double-check your distance entry.
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.
Keep the range notes worth reading later.
If this tool is part of a sight-in session, keep the correction and the confirmation group in the same note.
Use the Holdover Range Bench Log Card to record rifle, optic, ammunition, distance, weather, zero, group notes, correction, and next test without turning a range trip into a memory test.
Safety note: the card is a note-taking worksheet, not shooting instruction, load data, legal advice, or a substitute for range rules, official guidance, manufacturer manuals, or qualified instruction.
Get the log card through The Dispatch
What The Scope Adjustment Calculator Gives You
The MOA/MIL Scope Adjustment Calculator turns a measured miss into a practical correction: angular value, click count, and turret direction. It is meant for sight-in sessions where the target is already telling you how far the group landed from your point of aim.
Enter the range, the measured offset, and the click value on your optic. The calculator keeps the range math visible while translating it into the language you actually need at the bench.
Example Range Scenario
If a group lands 2 inches low at 100 yards and the scope adjusts in quarter-MOA clicks, the useful question is not the formula. It is how many clicks to dial up, what angular correction that represents, and whether the next group confirms it. That is the job of the calculator.
Quick FAQ
Can this calculator zero my rifle for me?
No. It converts a measured point-of-impact error into MOA, MIL, clicks, and direction. You still need to fire a confirmation group after making the adjustment.
Should I enter inches or centimetres?
Use the unit you actually measured on the target. The calculator supports common yard/inch and metre/centimetre range workflows.
What if my scope tracks imperfectly?
Treat the click count as the intended correction. Real scopes, mounts, ammunition, wind, and target measurement can introduce error, so the next group is the proof.
Does it work for horizontal and vertical misses?
Yes. Enter the observed miss and the tool reports correction direction and click count for the selected adjustment value.
Cite This Tool
MOA/MIL Scope Adjustment Calculator
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.
Related Holdover Tools
If this is the job on your bench, these nearby tools are usually part of the same workflow.