Trapezoid Area Calculator
Free online trapezoid area calculator. Enter top base, bottom base, and height to get area and perimeter instantly.
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📊 Result Chart
About Trapezoid Area Calculator
Trapezoid Area Calculator is a free online tool that calculates the area and perimeter of a trapezoid. Enter the top base (a), bottom base (b), and height (h) to instantly get results. 100% client-side, no sign-up required. Works on mobile and desktop, all calculations run locally in your browser for privacy.
How to Use in 3 Steps
- Enter the top base length (a)
- Enter the bottom base length (b) and height (h)
- Click "Calculate" to see the area and perimeter
How is the area of a trapezoid calculated?
The area is calculated using A = (a + b) × h / 2, where a is the top base, b is the bottom base, and h is the perpendicular height between them.
Do I need to download anything?
No, it runs entirely in your browser. No downloads needed.