Definition: A square foot is a unit of area equal to the area of a square with sides one foot in length.
History/origin: The foot as a unit dates back to ancient times and was standardized in the imperial and US customary measurement systems.
Current use: Square feet are widely used in the United States and other countries that use imperial units for measuring area, especially in real estate and construction.
Definition: A square yard is a unit of area equal to the area of a square with sides one yard (3 feet) in length.
History/origin: The square yard is part of the imperial and US customary systems, often used for measuring larger areas than square feet.
Current use: Square yards are used in the US, UK, and other countries for land measurement, textiles, and flooring.
| Square Feet (sq ft) | Square Yards (sq yd) |
|---|---|
| 9.000 | 1.000000 |
| 4.500 | 0.500000 |
| 18.000 | 2.000000 |
| 36.000 | 4.000000 |
| 72.000 | 8.000000 |
| 90.000 | 10.000000 |
| 0.900 | 0.100000 |
| 0.090 | 0.010000 |
| 27.000 | 3.000000 |
| 67.500 | 7.500000 |
1 square yard = 9 square feet
1 square foot = 0.111111 square yards
Example: convert 90 square feet to square yards:
90 ÷ 9 = 10 square yards