Convert Square Foot to Square Yard
Convert square feet to square yards instantly. 1 square foot = 0.1111111111 square yard — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Yard to Square Foot converter for the reverse conversion.
Units explained
Square Foot
A square foot is an imperial unit of area equal to exactly 0.09290304 m². It is the dominant unit for real estate area measurement in the United States and is widely used in India for residential property listings.
Derived by squaring the foot. The foot was standardized to exactly 0.3048 m via the 1959 International Yard and Pound Agreement.
Square feet are the standard unit for US real estate floor area, HVAC capacity ratings (BTU per ft²), commercial leasing, and construction. In India, square feet is the dominant unit for residential property advertisements alongside traditional regional units.
Foot dates to ancient civilizations; modern exact value standardized in 1959.
Square Yard
A square yard is an imperial unit of area equal to exactly 0.83612736 m². It is used for carpet, fabric, paving, and some landscaping measurements.
Derived by squaring the yard (3 feet). The yard was standardized to exactly 0.9144 m via the 1959 International Yard and Pound Agreement.
Square yards are used in carpeting (US and UK), fabric retail, paving (UK, US, India), and landscape gardening. In India, square yards are sometimes used in legal property documents.
Yard dates to medieval English usage; modern exact value standardized in 1959.
Square Foot to Square Yard conversion formula
The relationship between square feet and square yards:
To convert square feet to square yards, multiply the value in square feet by 0.1111111111. To reverse, multiply square yards by 9.
How to use this converter
Type a value into the calculator. The result in square yards updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Yard to Square Foot converter for the reverse direction.
Step-by-step: convert square feet to square yards
- Write down the value in square feet (ft²).
- Multiply that value by the factor 0.1111111111.
- The product is the equivalent value in square yards (yd²).
- To reverse, multiply the square yard value by 9.
Worked examples
Example 1 — Convert 1 ft² to yd²:
1 × 0.1111111111 = 0.1111111111 yd²
Example 2 — Convert 100 ft² to yd²:
100 × 0.1111111111 = 11.1111111111 yd²
Real-world example — Body height conversion
You enter your height as 180 square feet into an international job or visa application. The form then asks for the same value in square yards — converting between these adjacent units is one of the most-used length conversions globally.
180 ft² × 0.1111111111 = 20 yd²
Real-world example — Furniture and large objects
A 72-square foot piece of furniture converts to a value in square yards that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 ft² × 0.1111111111 = 8 yd²
Real-world example — Children's height milestones
A 150-square foot-tall child measures a value in square yards that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 ft² × 0.1111111111 = 16.6666666667 yd²
Square Foot to Square Yard conversion table
Standard reference values for converting square feet to square yards:
| Square Foot [ft²] | Square Yard [yd²] |
|---|---|
| 0.01 | 0.0011111111 |
| 0.1 | 0.0111111111 |
| 1 | 0.1111111111 |
| 2 | 0.2222222222 |
| 3 | 0.3333333333 |
| 4 | 0.4444444444 |
| 5 | 0.5555555556 |
| 10 | 1.1111111111 |
| 20 | 2.2222222222 |
| 30 | 3.3333333333 |
| 40 | 4.4444444444 |
| 50 | 5.5555555556 |
| 100 | 11.1111111111 |
| 500 | 55.5555555556 |
| 1000 | 111.1111111111 |
Frequently asked questions
How many square yards is 1 square foot?
How do I convert square feet to square yards?
How do I convert square yards back to square feet?
How many square yards is 100 square feet?
Popular area unit conversions
Convert Square Foot to other area units
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Metric / SI (16 units)
Imperial / US Customary (14 units)
US Survey (5 units)
Indian Subcontinent (16 units)
Other Regional (10 units)
Scientific / Physics (5 units)
Historical / Pre-metric European (6 units)
Sources & references
Conversion factor (1 ft² = 0.1111111111 yd²) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.