Formula to convert inch’s to moa

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


Help Support Long Range Hunting by donating:


  1. klemm

    klemm Well-Known Member

    Messages:
    126
    Joined:
    Feb 11, 2012
    I just want to convert my group size from inches to MOA.
     
  2. adam32

    adam32 Well-Known Member

    Messages:
    1,474
    Joined:
    Nov 14, 2007
    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"...
     
    BJH, T3ninja, Pmacc60 and 10 others like this.
  3. jd5521

    jd5521 Member LRH Team Member

    Messages:
    21
    Joined:
    Jan 30, 2016
    1 moa is 1.047 inches and 100 yards.
     
  4. KyCarl

    KyCarl Well-Known Member LRH Team Member

    Messages:
    1,049
    Joined:
    May 10, 2017
    A Minute of Angle (MOA) is an angular measurement.

    A MOA is 1/60th of a degree.

    1 MOA spreads about 1″ per 100 yards. (actually 1.047″)

    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. dfanonymous

    dfanonymous Well-Known Member

    Messages:
    649
    Joined:
    Jul 16, 2016

    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
    tbrice23, adam32, RockyMtnMT and 2 others like this.
  6. jebel

    jebel Well-Known Member

    Messages:
    155
    Joined:
    Jun 15, 2018
    (Your measurement in inches at a given yardage) divided by [(yardage divided by 100)*(1.047198)]
     
  7. RockyMtnMT

    RockyMtnMT Official LRH Sponsor

    Messages:
    5,002
    Joined:
    Mar 25, 2007
    Hahaha! You couldn't let that one pass! I get your humor. I think you're funny no matter what everyone else says!
     
  8. KyCarl

    KyCarl Well-Known Member LRH Team Member

    Messages:
    1,049
    Joined:
    May 10, 2017
  9. dfanonymous

    dfanonymous Well-Known Member

    Messages:
    649
    Joined:
    Jul 16, 2016

    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”:cool:
     

    Attached Files:

  10. klemm

    klemm Well-Known Member

    Messages:
    126
    Joined:
    Feb 11, 2012
    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. klemm

    klemm Well-Known Member

    Messages:
    126
    Joined:
    Feb 11, 2012
    Thank you Jebel.
    That is what I thought just doublechecking
     
    jebel and jmcmath like this.
  12. DT Lars

    DT Lars Member

    Messages:
    5
    Joined:
    Jan 27, 2019
    I believe it would be as follows:
    0.423 (Group in Inches) / 1.047 (1-MOA) = 0.404 MOA group
     
    Frog4aday, adam32 and slv hunter like this.
  13. Mike 338

    Mike 338 Well-Known Member

    Messages:
    1,674
    Joined:
    Feb 4, 2012
    Frog4aday likes this.
  14. ducky

    ducky Well-Known Member

    Messages:
    60
    Joined:
    Jan 17, 2016
    You can also download a free app that'll allow you to take a picture of your group and measure the group for you in MOA.