USA | UK | Diameter | Circumference |
---|---|---|---|
5 | J1/2 | 15.6mm | 49mm |
6 | M | 16.4mm | 52mm |
7 | O | 17.3mm | 54.5mm |
8 | Q | 18.1mm | 57mm |
9 | R1/2 | 18.9mm | 59.5mm |
10 | T1/2 | 19.7mm | 62mm |
USA | UK | Diameter | Circumference |
---|---|---|---|
5 | J1/2 | 15.6mm | 49mm |
6 | M | 16.4mm | 52mm |
7 | O | 17.3mm | 54.5mm |
8 | Q | 18.1mm | 57mm |
9 | R1/2 | 18.9mm | 59.5mm |
10 | T1/2 | 19.7mm | 62mm |