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MAC Calculator

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Center of Gravity Calculator

 
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This Center of Gravity Calculator is used to calculate the Center of gravity of a wing as well as the Mean Aerodynamic Cord of a wing. I hope this is helpful.
Simple calculator for determining The CG distance from Leading edge at the root chords when the percent MAC is known.
Enter Root Chord (A): 
Enter Tip Chord (B): 
Enter Sweep Distance (S):
Enter Half Span (Y):
Enter %MAC Balance Point:
Sweep Distance @ MAC (C) =
Mean Aerodynamic Chord (MAC) =
MAC Distance from Root (d) =
Balance Point @ Root Chord (CG) =

 

Note:
A 25% of MAC is generally accepted as a good starting point for the CG of a conventional tailed aircraft. The normal range most often falls between 25-30% of MAC

 Use this calculator to determine percent of MAC for a given CG

 
Enter Root Cord (A): 
Enter Tip Cord (B): 
Enter Sweep Distance (S):
Enter Half Span (Y):
Enter Center of Gravity (CG):
Sweep Distance @ MAC (C) =
Mean Aerodynamic Cord (MAC) =
MAC Distance from Root (d) =
% Mean Aerodynamic Cord (%MAC) =
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Updated December 1, 2003