Convert Ounces per Square Foot to Ounces per Square Yard
1 ounce per square foot (oz/ft²) = 9 ounces per square yard (oz/yd²). 1 oz/yd² = 0.1111111111 oz/ft². Example: 15 oz/ft² = 15 × 9 = 135 oz/yd².
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1 oz/ft² = 9 oz/yd²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ounce per square foot to ounce per square yard converter to paste a column from Excel.
How to Convert Ounce per Square Foot to Ounce per Square Yard
- 1 oz/ft² = 9 oz/yd²
- 1 oz/yd² = 0.1111111111 oz/ft²
- Example: convert 15 oz/ft² to oz/yd²: 15 oz/ft² = 15 × 9 oz/yd² = 135 oz/yd²
Formula
oz/yd² = oz/ft² × 9
Derivation from SI units:
- 1 oz/ft² = 28.349523125 g ÷ 0.09290304 m² = 305.1517192 g/m² (exact ratio)
- 1 oz/yd² = 28.349523125 g ÷ 0.83612736 m² = 33.90574658 g/m² (exact ratio)
- 1 oz/ft² = 305.1517272739 g/m² ÷ 33.90574747488 g/m² per oz/yd² = 9 oz/yd²
Both units are defined exactly, so the factor is exact. Ounce per Square Foot definition: ounce per square foot; Ounce per Square Yard definition: ounce per square yard.
Worked examples
- A reading of 0.75 oz/ft² converts to 6.75 oz/yd².
0.75 oz/ft² × 9 = 6.75 oz/yd² - A value of 2 oz/ft² is 18 oz/yd².
2 oz/ft² × 9 = 18 oz/yd²
Ounce per Square Foot to Ounce per Square Yard conversion table
| Ounces per Square Foot (oz/ft²) | Ounces per Square Yard (oz/yd²) |
|---|---|
| 0.1 oz/ft² | 0.9 oz/yd² |
| 0.25 oz/ft² | 2.25 oz/yd² |
| 0.5 oz/ft² | 4.5 oz/yd² |
| 0.75 oz/ft² | 6.75 oz/yd² |
| 1 oz/ft² | 9 oz/yd² |
| 1.5 oz/ft² | 13.5 oz/yd² |
| 2 oz/ft² | 18 oz/yd² |
| 3 oz/ft² | 27 oz/yd² |
| 4 oz/ft² | 36 oz/yd² |
| 5 oz/ft² | 45 oz/yd² |
Where it's used
Ounces per Square Foot are used for coated fabrics and laminates, while ounces per square yard appear in US denim, canvas and apparel fabric specifications. Both measure fabric weight (mass per unit area, GSM), so the conversion is a fixed factor.
Ounce per Square Foot to other fabric weight units
| Conversion | 1 oz/ft² equals |
|---|---|
| ounce per square foot to ounce per square yard | 9 oz/yd² |
| ounce per square foot to gram per square metre | 305.1517273 g/m² |
| ounce per square foot to gram per square centimetre | 0.03051517273 g/cm² |
| ounce per square foot to pound per square yard | 0.5625 lb/yd² |
Frequently asked questions
How many ounces per square yard are in 1 ounce per square foot?
1 oz/ft² = 9 oz/yd².
How do I convert ounces per square foot to ounces per square yard?
Multiply the value in oz/ft² by 9. For example, 15 oz/ft² × 9 = 135 oz/yd².
Is the oz/ft² to oz/yd² conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ounce (avoirdupois)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Ounces per Square Foot to Ounces per Square Yard. Retrieved October 25, 2026, from https://scientificconverters.com/fabric-weight/ounces-per-square-foot-to-ounces-per-square-yard/
IEEE
Scientific Converters, "Convert Ounces per Square Foot to Ounces per Square Yard," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/fabric-weight/ounces-per-square-foot-to-ounces-per-square-yard/