basic

Trapezoid Area Calculator

Area of a trapezoid from its bases and height.

Calculate the area of a trapezoid given the lengths of its two parallel bases and the perpendicular height between them.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Area = ½ × (a + b) × h, where a and b are the parallel bases and h is the height.

In depth

Calculate the area of a trapezoid given the lengths of its two parallel bases and the perpendicular height between them.