Square feet to square yards, squares, acres, and square meters — the conversion factors
Square feet is the hub — convert to whatever the material is sold in: ÷ 9 for square yards (carpet, ready-mix), ÷ 100 for squares (roofing & siding), × 0.0929 for m², ÷ 43,560 for acres. Worked from 900 ft². Add your waste factor before you order.
What this diagram shows
A conversion diagram with 900 square feet at the center fanning out to four units each trade orders in. Divide by 9 to get 100 square yards, used for carpet and ready-mix concrete. Divide by 100 to get 9 squares, used for roofing and siding. Multiply by 0.0929 to get 83.6 square meters for metric plans. Divide by 43,560 to get 0.0207 acre for lots and land. The reference line states the exact factors: 1 square yard equals 9 square feet, 1 square equals 100 square feet, 1 square meter equals 10.764 square feet, and 1 acre equals 43,560 square feet.
Square Footage Calculator
Free square footage calculator: add multiple rooms or odd shapes, subtract doors and windows, and convert to sq ft, sq yards, square meters and squares.
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