Math calculators

Everyday arithmetic, algebra, and geometry — worked out clearly.

Percentages, fractions, ratios, geometry, and the little calculations that come up all the time — with formulas you can reuse anywhere.

Calculators
63
Topics: All Percentage (75) Fractions (4) Geometry (63)
63 results
Math / Geometry

Spherical Cap Volume Calculator

Compute the volume of a spherical cap (the portion of a sphere cut off by a plane) from the sphere's radius and the cap'...

basic
21,600 3.8 1 min
Math / Geometry

Angle Between Vectors Calculator

Compute the angle between two 3D vectors using cos θ = (a·b) / (|a| · |b|), and report the angle in both degrees and rad...

basic
20,591 4.3 1 min
Math / Geometry

Polar to Cartesian Converter

Convert a polar coordinate (r, θ) into the Cartesian coordinate (x, y) = (r cos θ, r sin θ), with θ entered in degrees.

basic
21,499 3.8 1 min