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Geometry Calculators

Trapezoid Calculator

Find the area of a trapezoid (trapezium) from its two parallel sides and height, plus the median length.

Also known as trapezium area, area of trapezoid, trapezoid area formula.

Enter values

Results update as you type.

Result

Area

32

Median (midsegment)
8
Step-by-stepShow
  1. A = (10 + 6) ÷ 2 × 4 = 32

About the Trapezoid Calculator

Find the area of a trapezoid (trapezium) from its two parallel sides and height, plus the median length.

Also known as: trapezium area, area of trapezoid, trapezoid area formula.

How to use this calculator

  1. Enter base a, base b, height.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Open “Step-by-step” to see how the answer was worked out.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Trapezoid formula

A = ½ (a + b) h

Worked example

Using the values pre-filled in the calculator above:

  • Base a = 10
  • Base b = 6
  • Height = 4

the calculator returns:

  • Area: 32
  • Median (midsegment): 8

Working

  1. A = (10 + 6) ÷ 2 × 4 = 32