Calculations in an oloid. The oloid was discovered in 1929 by Paul Schatz. It is formed by two circles of the same size, which perpendicularly intersect in a way, so that the edge of one circle goes through the center point of the other. Around this figure, a convex hull is laid, which is the smallest enclosing shape without dent. The surface area matches that of a sphere of the same radius. The exact calculation of the volume is very complicated, therefore an approximation is used. Enter one value and choose the number of decimal places. Then click Calculate.

Formulas:
a = 4/3 π r
l = 3 r
h = 2 r
A = 4 π r²
V ≈ 3.0524184684 * r³

pi:
π = 3.141592653589793...

The radius has a one-dimensional unit (e.g. meter), the surface area has this unit squared (e.g. square meter), the volume has this unit to the power of three (e.g. cubic meter). A/V has this unit ^{-1}.