Online Area calculator

In Mathematics | Keywords | Thanks to...

Estimate the area of the most common shapes (circle, square, triangle, rectangle)


  • Choose a shape
  • Length of side
  • Width
  • Height
  • Base
  • Vertical height
  • Base
  • Vertical height
  • Top (short/minor) base
  • Bottom (long/major) base
  • Vertical height
  • Radius
  • Short or minor axis (similar to radius in circles)
  • Long or major axis (similar to radius in circles)
  • Number of decimal places (round)


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