## About This Tool

The online Area of a Trapezoid Calculator is used to help you find the area of a trapezoid.

## Trapezoid

A trapezoid is a quadrilateral with two sides parallel. The trapezoid is equivalent to the British definition of trapezium.

## Area of a Trapezoid Formula

The following is the calculation formula for area of a trapezoid, where a and b are the lengths of the parallel sides, and h is the height: