CalculatorMath

Trapezoid Area Calculator

Calculate area from two parallel side lengths and perpendicular height. Bases 4 and 6 with height 3 give area 15. All dimensions must be positive and use the same unit.

Instant · no account

Input

Enter your values

Parallel side a

Parallel side b

Perpendicular height

Method

How it works

Change any input above and the result updates instantly. The formula or method used by this tool is shown below.

Area = (a+b)h / 2.

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Quick answers

About this tool

What does the Trapezoid Area Calculator do?+

Calculate area from two parallel side lengths and perpendicular height. Bases 4 and 6 with height 3 give area 15. All dimensions must be positive and use the same unit.

How does this calculator calculate the result?+

It uses this method: Area = (a+b)h / 2.

Are my inputs saved or sent to an account?+

Core CalcWorkspace tools require no account, and most calculations run locally in your browser. Favorites and recent-tool history, when used, stay in this browser.