# Formula to convert inch’s to moa

Discussion in 'The Basics, Starting Out' started by klemm, Mar 22, 2019.

1. ### klemmWell-Known Member

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I just want to convert my group size from inches to MOA.

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Everything on the internet shoots 1/2 moa so just say that...or if it's a Creedmoor go with "in the .1's all day"...

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3. ### jd5521MemberLRH Team Member

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1 moa is 1.047 inches and 100 yards.

4. ### KyCarlWell-Known MemberLRH Team Member

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A Minute of Angle (MOA) is an angular measurement.

A MOA is 1/60th of a degree.

1 MOA is a different size at different distances, 8″ at 800 yards is still just 1 MOA.

100 yds 200 yds 300 yds 400 yds 500 yds 600 yds 700 yds 800 yds
1″ .........2″......... 3″........ 4″........ 5″........ 6″........ 7″........ 8″

5. ### dfanonymousWell-Known Member

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I know your trying to give the crash course but the .047 is pretty important.
At 500 it would be 5.235 which can almost be held or dialed for 5.25

Last edited: Mar 22, 2019
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6. ### jebelWell-Known Member

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(Your measurement in inches at a given yardage) divided by [(yardage divided by 100)*(1.047198)]

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Hahaha! You couldn't let that one pass! I get your humor. I think you're funny no matter what everyone else says!

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9. ### dfanonymousWell-Known Member

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Well without getting into sniper school or anything or operational this and that, I’ve qualified with hundreds and thousands of service members at 500 meters with a 5.56 in all winds and weathers.

So no, in my opinion, it’s not that hard to dope anything at 500 yards when especially using a scope weapon vs iron sights or a RCO and a real rifle cartridge that wasn’t made for shooting bunnies.

Also I took it up with NSSF and they said it was ABOUT 1”

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10. ### klemmWell-Known Member

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So, a .423 in group at 100 yards is how many MOA.
What number do I divide or multiply by to get this number.
What is the formula

11. ### klemmWell-Known Member

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Thank you Jebel.
That is what I thought just doublechecking

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12. ### DT LarsMember

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I believe it would be as follows:
0.423 (Group in Inches) / 1.047 (1-MOA) = 0.404 MOA group

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