Area Calculator

Choose a flat shape and enter its dimensions to find its area.

Runs in your browser — nothing is uploaded

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How to use Area Calculator

  1. Choose a shape.
  2. Enter its dimensions in any unit.
  3. Read the area, perimeter or volume.

Example: A 4 by 3 rectangle has area 12 square units.

Questions

Which units should I enter?

Keep all dimensions in the same unit. The area is in that unit squared; perimeter is in the original unit.