Mathematics & calculation

Area of a Rectangle Calculator (Square Feet or m²)

Calculate the area of a rectangle from its length and width: the floor area of a room, a wall, a lot or a sheet of paper. The formula A = L × W explained, sq ft, m² and cm² conversions, worked examples and common mistakes.

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<div
  class="bethemesh-widget"
  data-tool="rectangle-area-calculator"
  data-lang="en"
  data-theme="auto"
  data-min-height="360"
  data-max-height="760"
  data-sandbox="allow-scripts allow-same-origin"
  data-allow="clipboard-write"
></div>
<script src="https://bethemesh.com/widgets/v1/bethemesh.js" async></script>
<p style="margin:6px 0 0;font:12px/1.4 system-ui,sans-serif">Free tool by <a href="https://bethemesh.com/en/tools/rectangle-area-calculator">Bethemesh</a></p>

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Area of a Rectangle Calculator (Square Feet or m²)

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