Use any unit you prefer (cm, m, inches…). The area/volume will be in the corresponding squared/cubed unit. For example, if you enter cm, area will be in cm².
Area & Volume Calculator
Compute area, perimeter and volume of 2D shapes and 3D solids with formulas.
Plane and solid geometry with formulas for every shape.
The calculator supports the most common plane figures (circle, rectangle, square, triangle and trapezoid) and the most used solids in math and physics courses (cube, rectangular box, cylinder, sphere and cone). For each shape it shows the applied formula and the numeric result with up to 8 significant digits.
Choose a shape and fill in the dimensions.
- Select the 2D figure or 3D solid.
- Enter the dimensions in the displayed fields.
- See area/perimeter (2D) or volume/surface (3D) with the formulas.
Sources and references for this tool
These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.