Irregular Square Footage Calculator
Sum of rectangles. Enter length×width pairs (one per line).
Result
General calculation reads
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How to use this calculator
- Decompose your floor plan into rectangles.
- Enter each as "L W" on a separate line.
- Read the sum.
About this calculator
For complex shapes that aren't simple rectangles, decompose into a sum of rectangles. Walk the floor plan, measure each rectangle separately, and sum. The calculator parses any number of L×W pairs.
Frequently asked
How to decompose a complex shape?+
What about curved sections?+
Subtract a "negative" rectangle?+
Maximum sections?+
Conversions?+
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