g/m2.... oz/square yard

50 ........1.47
60 ........1.77
70........ 2.06
80 ........2.36
90 ........2.65
100.......2.95

110.......3.24
120.......3.54
130.......3.83
140.......4.13
150.......4.42
160.......4.72
170.......5.01
180.......5.31
190.......5.60
200.......5.90

210.......6.19
220.......6.49
230.......6.78
240.......7.07
250.......7.37
260.......6.67
270.......7.96
280.......8.26
290.......8.55
300.......8.89

310.......9.14
320.......9.44
330.......9.73

1 ounce = 28.35 grams

1 gram = 0.03527 ounces

1 pound = 16 ounces = 453,592 grams

Cotton Duck

Muslin

Poplin

Twill