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Convert between ounces per square yard and GSM for fabric weight measurements
Conversion Formula:
GSM = oz/yd² / 0.02949 (or oz/yd² × 33.906)
oz/yd² = GSM × 0.02949
| oz/yd² | GSM (g/m²) | Typical Use |
|---|---|---|
| 2 | 67.8 | Lightweight lining |
| 3 | 101.7 | Lightweight shirt |
| 4 | 135.6 | Standard t-shirt |
| 5 | 169.5 | Heavy t-shirt |
| 6 | 203.5 | Light sweatshirt |
| 7 | 237.4 | Medium sweatshirt |
| 8 | 271.3 | Heavy sweatshirt |
| 10 | 339.1 | Hoodie/Light jacket |
| 12 | 406.9 | Canvas |
| 15 | 508.6 | Heavy canvas/Denim |
Ounces per square yard (oz/yd²) is an imperial unit that measures fabric weight. It tells you how many ounces one square yard of fabric weighs. This measurement is commonly used in the United States textile and apparel industry.
To convert oz/sq yard to GSM, divide the oz/yd² value by 0.02949 (or multiply by 33.906). For example, 5 oz/yd² equals approximately 169.5 GSM (5 ÷ 0.02949 = 169.527).
Hoodies typically range from 8-12 oz/yd² (270-400 GSM). Lightweight hoodies are around 8 oz/yd², standard hoodies are 10 oz/yd², and heavyweight hoodies can be 12 oz/yd² or more.
The United States textile industry traditionally uses imperial measurements. However, many US manufacturers now list both oz/yd² and GSM to accommodate international customers and global standards.
Light fabrics (under 4 oz/yd² or 135 GSM) are thin and breathable, ideal for summer clothing. Medium fabrics (4-7 oz/yd² or 135-240 GSM) are versatile for year-round wear. Heavy fabrics (over 7 oz/yd² or 240 GSM) are thick and warm, suitable for winter clothing and outerwear.
Not necessarily. Higher oz/yd² means heavier fabric, which may be more durable, but quality depends on fiber type, weave, and construction. Lightweight fabrics can be high quality if made from premium materials with tight weaves.