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Calculate trapezoid area using its two parallel bases and perpendicular height. The height is the perpendicular gap between the parallel bases, not a sloping side. This browser-local calculator updates from numeric inputs and shows a labelled breakdown without uploading your data.
Calculate trapezoid area using its two parallel bases and perpendicular height. The height is the perpendicular gap between the parallel bases, not a sloping side.
Enter dimensions on shape diagrams for rectangle, triangle, circle and L-shaped areas. Edit polygons with visible grid spacing, snapping and draggable corners.
Calculate circle area, circumference, circular sector area and arc length from radius, central angle and measurement unit.
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