Square Footage Calculator (Rectangular)
Length × width = ft². The simplest area calc.
Result
General calculation reads
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How to use this calculator
- Enter length and width.
- Read area in ft², m², and acres.
About this calculator
The most basic area formula. Use for any rectangular space. Conversions: 1 yd² = 9 ft²; 1 m² ≈ 10.76 ft²; 1 acre = 43,560 ft².
Frequently asked
How many ft² in an acre?+
ft² to m²?+
Yards to feet?+
For irregular rooms?+
Including walls?+
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