📐 Geometry Calculators
11 free geometry calculators. Area, volume and surface area of circles, triangles, cylinders, spheres and more.
- Circle CalculatorCalculate the radius, diameter, circumference and area of a circle from any one of them.
- Triangle Area CalculatorCalculate the area of a triangle from base and height, from three sides with Heron's formula, or from two sides and the angle between them.
- Rectangle CalculatorCalculate the area, perimeter and diagonal of a rectangle or square from its length and width.
- Trapezoid Area CalculatorCalculate the area of a trapezoid from its two parallel sides and height, with the median line.
- Hexagon and Regular Polygon CalculatorCalculate the area, perimeter, apothem and angles of a regular hexagon, pentagon, octagon or any regular polygon from its side length.
- Cylinder Volume CalculatorCalculate the volume and surface area of a cylinder from its radius or diameter and height, with the result in liters and gallons.
- Sphere Volume CalculatorCalculate the volume and surface area of a sphere from its radius or diameter.
- Cone Volume CalculatorCalculate the volume, slant height and surface area of a right circular cone from its radius and height.
- Box Volume Calculator (Rectangular Prism)Calculate the volume, surface area and space diagonal of a box, cube or rectangular prism from its length, width and height.
- Pyramid Volume CalculatorCalculate the volume, slant heights and surface area of a rectangular or square pyramid from its base and height.
- Surface Area CalculatorCalculate the surface area of a cube, box, cylinder, sphere, cone or square pyramid, with the volume of the same shape.
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