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GSM to oz/yd² converter
To convert GSM to ounces per square yard, divide by 33.906. So 200 GSM is 5.9 oz/yd², and 340 GSM is 10.03 oz/yd².
Type in either box; the other updates.
Formula
oz/yd² = GSM ÷ 33.906 · GSM = oz/yd² × 33.906
One ounce is 28.3495 g and one square yard is 0.836127 m², so 1 oz/yd² = 28.3495 ÷ 0.836127 = 33.906 g/m².
Example: A 340 GSM sweatshirt fleece: 340 ÷ 33.906 = 10.03 oz/yd².
GSM to oz/yd² chart
| GSM | oz/yd² |
|---|---|
| 80 | 2.36 |
| 100 | 2.95 |
| 120 | 3.54 |
| 140 | 4.13 |
| 160 | 4.72 |
| 180 | 5.31 |
| 200 | 5.9 |
| 220 | 6.49 |
| 240 | 7.08 |
| 260 | 7.67 |
| 280 | 8.26 |
| 300 | 8.85 |
| 340 | 10.03 |
| 380 | 11.21 |
| 400 | 11.8 |
| 450 | 13.27 |
| 500 | 14.75 |
| 600 | 17.7 |
oz/yd² to GSM chart
| oz/yd² | GSM |
|---|---|
| 3 | 101.72 |
| 4 | 135.62 |
| 5 | 169.53 |
| 6 | 203.43 |
| 7 | 237.34 |
| 8 | 271.25 |
| 10 | 339.06 |
| 12 | 406.87 |
| 14 | 474.68 |
| 16 | 542.49 |
Questions buyers ask
Is oz per square yard the same as oz in a denim spec?
Yes. Denim and canvas weights quoted in 'oz' are ounces per square yard, so the same factor applies.
How do I get weight per running metre?
Multiply GSM by the fabric width in metres. For width in inches, use the GLM calculator.
Related tools
GSM to GLM calculator · Fabric weight converter · Fabric GSM chart · All free tools
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