Square Footage Calculator

Calculate the area of any shape in square feet, square yards, and square meters. Add multiple rooms or sections together and get a total cost estimate.

Select shape 5 shapes
ft
ft
$
For flooring, paint, tile cost estimates
Frequently asked questions
How do I calculate square footage of a room? ›
For a rectangular room, multiply the length by the width in feet. A 12 × 14 ft room = 168 sq ft. For L-shaped rooms, split the room into two rectangles, calculate each separately, and add them together. This calculator handles all common shapes automatically.
How many square feet are in a square yard? ›
One square yard = 9 square feet (3 ft × 3 ft). To convert square feet to square yards, divide by 9. To convert square yards to square feet, multiply by 9. Carpet and some flooring materials are still sold by the square yard, so this conversion is useful for pricing.
How do I measure square footage for flooring? ›
Measure the length and width of each room at the widest points (including closets and doorway alcoves). Multiply to get square footage. Add up all rooms. Then add 10% for waste and cuts — more (15%) for diagonal installations or complex room shapes. For hardwood or tile in non-rectangular rooms, break the room into simpler shapes and add them up.
How do I convert square meters to square feet? ›
Multiply square meters by 10.764 to get square feet. For example, 20 m² × 10.764 = 215.28 sq ft. This calculator does the conversion automatically when you select meters as your unit.

About this square footage calculator

This calculator handles five common shapes — rectangle, triangle, circle, trapezoid, and L-shape — and converts between feet, inches, yards, meters, and centimeters. Use the "Add to total" button to accumulate multiple rooms or sections into a running grand total, which is handy when measuring an entire house for flooring or paint.