Square Footage Calculator
Calculate the square footage of rooms and spaces. Add multiple rooms to get the total floor area.
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300 sq ft
Square Feet
300
Square Meters
27.9
Acres
0.007
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Frequently Asked Questions
How do I calculate square footage?
Multiply the length by the width of a room in feet. For irregular shapes, divide the space into rectangles, calculate each, and add them together.
How many square feet in an acre?
1 acre equals 43,560 square feet. This is a standard measurement used in real estate and land surveys.