Enter the visual size and the distance into the Visual Angle Calculator. The calculator will evaluate the Visual Angle.
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Visual Angle Formula
The following two example problems outline the steps and information needed to calculate the Visual Angle.
VA = atan (S/D)
Variables:
- VA is the Visual Angle (degrees)
- S is the visual size
- D is the distance
To calculate a visual angle, take the inverse tangent of the visual size divided by the distance.
How to Calculate Visual Angle?
The following steps outline how to calculate the Visual Angle.
- First, determine the visual size.
- Next, determine the distance.
- Next, gather the formula from above = VA = atan (S/D).
- Finally, calculate the Visual Angle.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
visual size = 30
distance = 20
VA = atan (S/D) = ?