In sistemul american, sarma de modelaj are marimi exprimate in gauge. Pentru a echivala in milimetri, puteti folosi urmatorul tabel:
0.3mm = 28 gauge
0.4mm = 26 gauge
0.6mm = 22 gauge
0.7mm = 21 gauge
0.8mm = 20 gauge
0.9mm = 19 gauge
1.0mm = 18 gauge.
