Rectangle Area Calculator

Calculate the area of any rectangle from its width and height. Pick any unit for each side — the result is shown in square meters and re-expressed in the unit you chose, so you always see a number that fits the inputs you entered. Useful for floors, walls, plots, screens, paper, tiles, and any flat surface.

Your Result

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ResultWhat it means?
—No resultInputs are out of range or the rectangle could not be computed.
= 0Degenerate rectangleBoth sides are zero — the shape collapses to a point and has no area.
< 1 m²SmallLess than 1 m² — a small panel, tablet screen, or notebook page.
1 – 10 m²Medium1 to 10 m² — a small room floor, a generous desk, or a wall section.
10 – 100 m²Large10 to 100 m² — a typical apartment room, a garden patch, or a parking bay.
≥ 100 m²Very largeAt least 100 m² — an entire house floor, a sports court, or a small plot.

Rectangle area formula

A=width1

Area equals width times height — independent of the unit chosen, as long as both sides use the same unit.

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