Geometry calculators
Areas, volumes, triangles and shape measurements for plans, projects and spatial reasoning.
Area Calculator
Calculate area for common shapes including rectangles, circles, triangles and trapezoids.
Volume Calculator
Calculate volume for cubes, boxes, cylinders, spheres and cones using the selected shape.
Triangle Calculator
Calculate triangle area with Heron’s formula and report its perimeter.
Pythagorean Theorem Calculator
Calculate a right triangle hypotenuse from its two perpendicular legs.
Circle Calculator
Calculate a circle’s diameter, circumference and area from its radius.
Rectangle Area
Calculate rectangle area using labeled inputs and a transparent method.
Square Area
Calculate square area using labeled inputs and a transparent method.
Right Triangle Area
Calculate right triangle area using labeled inputs and a transparent method.
Equilateral Triangle Area
Calculate equilateral triangle area using labeled inputs and a transparent method.
Circle Area
Calculate circle area using labeled inputs and a transparent method.
Circle Sector
Calculate circle sector using labeled inputs and a transparent method.
Ellipse Area
Calculate ellipse area using labeled inputs and a transparent method.
Trapezoid Area
Calculate trapezoid area using labeled inputs and a transparent method.
Parallelogram Area
Calculate parallelogram area using labeled inputs and a transparent method.
Rhombus Area
Calculate rhombus area using labeled inputs and a transparent method.
Regular Polygon Area
Calculate regular polygon area using labeled inputs and a transparent method.
Annulus Area
Calculate annulus area using labeled inputs and a transparent method.
Cube Volume
Calculate cube volume using labeled inputs and a transparent method.
Sphere Volume
Calculate sphere volume using labeled inputs and a transparent method.
Hemisphere Volume
Calculate hemisphere volume using labeled inputs and a transparent method.
Cylinder Volume
Calculate cylinder volume using labeled inputs and a transparent method.
Cone Volume
Calculate cone volume using labeled inputs and a transparent method.
Pyramid Volume
Calculate pyramid volume using labeled inputs and a transparent method.