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# Earth Bulge Calculator

The physical effect on the earth curvature along a direct path between two points on the earth's surface is referred to as Earth Bulge or Earth Curve. The Earth has a radius of approximately 3965 miles. Using the Pythagorean theorem, that calculates to an average curvature of 7.98 inches per mile or approximately 8 inches in one mile. Use this online earth bulge calculator given here to find the amount of physical earth curvature bulge along a path.

## Earth Curvature Bulge Calculation

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The physical effect on the earth curvature along a direct path between two points on the earth's surface is referred to as Earth Bulge or Earth Curve. The Earth has a radius of approximately 3965 miles. Using the Pythagorean theorem, that calculates to an average curvature of 7.98 inches per mile or approximately 8 inches in one mile. Use this online earth bulge calculator given here to find the amount of physical earth curvature bulge along a path.

#### Formula:

H = 0.5 x d1 x d2 Where, H = Vertical distance from a horizontal reference line in feet d1 = Distance from the data point to point A in miles d2 = Distance from the data point to point B in miles

#### Example

If both the distances from Data point to point A and B are 100000 miles, then

Earth Bulge = 0.5 x 100000 x 100000
= 53819.4339 feet

If you are trying to figure the curvature of the earth at any distance from point a and b, this automated formula (H = 0.5 x d1 x d2) will do it for you.