Trapezoid Area Calculator

Calculate the area of a trapezoid from its two parallel sides and height.

Enter the lengths of the two parallel sides and the height. The area is calculated as ((a + b) / 2) × h.

What is the Area of a Trapezoid?

A trapezoid is a four-sided shape with one pair of parallel sides, called the bases. The area of a trapezoid is the space enclosed within its four sides, measured in square units.

Trapezoid Area Formula

  • Area: ((a + b) / 2) × h
  • a, b: the lengths of the two parallel sides (bases)
  • h: the perpendicular height between the two parallel sides

Tip: Make sure all measurements use the same unit. The result is expressed in square units of that measurement, such as square centimeters or square meters.

Note: This calculator provides mathematical calculations for the area of a trapezoid based on the formula described. While we strive for accuracy, please verify important calculations independently. This tool is for educational and informational purposes and should not be the sole basis for engineering, academic, or professional decisions.