ounzes	grams
17,00	481,95
17,25	489,04
17,50	496,13
17,45	494,71
18,00	510,30
18,25	517,39
18,50	524,48
18,75	531,56
19,00	538,65
19,25	545,74
19,50	552,82
19,75	559,91
20,00	567,00
20,15	571,25
20,50	581,18
20,75	588,26
21,00	595,35
21,15	599,60
21,50	609,53
21,75	616,61
22,00	623,70

1 ounce (oz.) = 28,35 grams

1 inch " (in.) = 2,54 cm

1 foot ' (ft.) = 12 inches = 30,48 cm

1 mm = 0,04 inches