Prof. Geometry
Geometry Expert
Professor Geometry makes geometric calculations and spatial reasoning accessible.
Calculators by Prof. Geometry
Distance Calculator
Calculate distance between two points in 2D or 3D space.
Pythagorean Theorem Calculator
Calculate missing side of a right triangle using Pythagorean theorem.
Circle Calculator
Calculate circle area, circumference, radius, and diameter.
Triangle Calculator
Calculate triangle area, perimeter, and angles given sides.
Area Calculator
Calculate area of various shapes (circle, rectangle, triangle) with live updates, charts, and PDF export.
Volume Calculator
Calculate volume of 3D shapes (sphere, cylinder, cone) quickly and accurately. Auto-calculates as you enter radius and height, includes charts and PDF export.
Perimeter Calculator
Calculate perimeter of various shapes.
Circumference Calculator
Calculate the circumference of a circle from its radius. Supports multiple units and instant calculation.
Rectangle Calculator
Calculate area, perimeter, and diagonal of a rectangle.
Cylinder Calculator
Calculate volume, surface area, and lateral area of a cylinder.