Geometry Calculator – Area, Perimeter, Volume

Calculate area, perimeter, volume and surface area for circle, rectangle, triangle, sphere, cylinder, cone, cube and cuboid.

Whether you are checking results or planning your next exam, Geometry Calculator works from shape and f[1]+' and shows a quick result to check your work or plan ahead.

How to Use the Geometry Calculator

Choose the shape, enter its measurements in one unit and click Calculate.

Which shapes are included?

Circle, rectangle, square, triangle, trapezium, sphere, cylinder, cone, cube and cuboid.

Which value of π is used?

3.14159265.

What unit is the answer in?

Area in square units and volume in cubic units of what you entered.

Can I use it for homework?

Yes, but also learn the formulas.

Geometry Calculator for students

Calculate area, perimeter, volume and surface area for circle, rectangle, triangle, sphere, cylinder, cone, cube and cuboid. Geometry Calculator is simple enough to use on a phone between classes, lets you try different scores to see what changes, and removes the need to remember university-specific formulas.

Steps

  1. Enter shape and f[1]+'.
  2. Adjust the options so they match what you need.
  3. Press the calculate button.
  4. Read the result and test other values.

Example

Results are out and you use Geometry Calculator to see where you stand and what you need next time.

This tool works inside your browser, so what you type or select here is not sent to our server for processing. Different universities and boards use different rules. If your institution publishes its own formula, follow that one for official purposes.

Also useful: CFT Calculator, Concrete Calculator, and Land Area Converter.

Further reading from trusted sources

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Last updated: 08 Nov 2026 • 100% free • Mobile friendly

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