How do you convert a grid azimuth to a magnetic azimuth? - ProProfs Discuss
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How do you convert a grid azimuth to a magnetic azimuth?



A. Subtract the 3.5 degrees from your azimuth.
B. Add the 3.5-degree grid magnet angle to the azimuth.
C. Subtract 3.5 degrees from your back azimuth.
D. Subtract the 5.5 degrees from your azimuth.

This question is part of Map & Geography Trivia (3P071 Volume 3)
Asked by Peter Pasion, Last updated: May 29, 2020

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3 Answers

manmobley

Manmobley

Answered Sep 26, 2019

Subtract the 3.5 degrees from your azimuth.

 

Chris Kenway

Chris Kenway, Content Writer, Jacksonville

Answered Oct 11, 2018

Option A - subtract the 3.5 degree from your azimuth.
To convert grid azimuth to magnetic azimuth you have to subtract the G - M angle from the grid azimuth. For example, if GM angle is 3.5 and grid azimuth is 150, magnetic azimuth will be
Magnetic azimuth = 150 - 3.5
= 146.5
Likewise, If you need to convert magnetic azimuth to grid azimuth, you will have to add magnetic azimuth to GM angle.

 

M_Jefferson

M_Jefferson

Answered Aug 18, 2017

Subtract the 3.5 degrees from your azimuth.
 

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