Category
Geometry
Area, volume, triangle, circle
Circle Calculator
Calculate area, circumference, radius, and diameter of a circle from any known value.
Triangle Calculator
Calculate area, perimeter, angles, and all properties of any triangle from known values.
Right Triangle Calculator
Calculate sides, angles, area, and trig ratios of a right triangle from any two known values.
Pythagorean Theorem Calculator
Solve for any side of a right triangle using a² + b² = c² with step-by-step solutions.
Square Calculator
Calculate area, perimeter, and diagonal of a square from its side length.
Rectangle Calculator
Calculate area, perimeter, and diagonal of a rectangle — or work backward from any one of them to find a missing side.
Rhombus Calculator
Calculate area, perimeter, angles, and diagonals of a rhombus from side, diagonals, or an angle.
Parallelogram Calculator
Calculate area, perimeter, height, diagonals, and angles of a parallelogram from known values.
Trapezoid Calculator
Calculate area, perimeter, median, and angles of a trapezoid from its parallel sides and height.
Pentagon Calculator
Calculate area, perimeter, diagonal, apothem, and circumradius of a regular pentagon.
Hexagon Calculator
Calculate area, perimeter, diagonals, apothem, and circumradius of a regular hexagon.
Regular Polygon Calculator
Calculate properties of any regular polygon (3–100 sides) including area, angles, apothem, and circumradius.
Cube Calculator
Compute every cube property — volume, surface area, space and face diagonals — from any single dimension, with a live isometric diagram.
Cuboid Calculator
Compute volume, surface area, aspect ratio, space and face diagonals of any rectangular box, or scale to a target volume.
Cylinder Calculator
Compute volume, total and lateral surface area, circumference, and aspect ratio of a cylinder from radius, diameter, circumference or a target metric.
Cone Calculator
Compute volume, surface area, and slant height of a cone — or solve for a missing dimension.
Sphere Calculator
Calculate volume, surface area, diameter, and circumference of a sphere from its radius.
Prism Calculator
Calculate volume, lateral surface area, and total surface area of any prism with various base shapes.
Pyramid Calculator
Calculate volume, slant height, lateral surface area, and total surface area of a pyramid with various base shapes.
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