Gauge = mm = Inch Conversion Chart
| B&S Gauge |
Millimeter (mm) |
Inch (decimal) |
Inch (fraction) |
B&S Gauge |
Millimeter (mm) |
Inch (decimal) |
Inch (fraction) |
|---|---|---|---|---|---|---|---|
| 1 | 7.348 | 0.289 | — | 16 | 1.291 | 0.051 | — |
| 2 | 6.543 | 0.258 | — | — | 1.191 | 0.047 | 3/64 |
| — | 6.350 | 0.250 | 1/4 | 17 | 1.149 | 0.045 | — |
| — | 5.953 | 0.234 | 15/64 | 18 | 1.024 | 0.040 | — |
| 3 | 5.827 | 0.229 | — | 19 | 0.912 | 0.036 | — |
| — | 5.556 | 0.219 | 7/32 | 20 | 0.812 | 0.032 | — |
| 4 | 5.189 | 0.204 | — | — | 0.795 | 0.031 | 1/32 |
| — | 5.154 | 0.203 | 13/64 | 21 | 0.723 | 0.028 | — |
| — | 4.762 | 0.188 | 3/16 | 22 | 0.644 | 0.025 | — |
| 5 | 4.621 | 0.182 | — | 23 | 0.573 | 0.023 | — |
| — | 4.366 | 0.172 | 11/64 | 24 | 0.511 | 0.020 | — |
| 6 | 4.115 | 0.162 | — | 25 | 0.455 | 0.018 | — |
| — | 3.969 | 0.156 | 5/32 | 26 | 0.405 | 0.016 | — |
| 7 | 3.664 | 0.144 | — | — | 0.396 | 0.015 | 1/64 |
| — | 3.572 | 0.141 | 9/64 | 27 | 0.360 | 0.014 | — |
| 8 | 3.263 | 0.128 | — | 28 | 0.321 | 0.013 | — |
| — | 3.175 | 0.125 | 1/8 | 29 | 0.286 | 0.011 | — |
| 9 | 2.906 | 0.114 | — | 30 | 0.255 | 0.010 | — |
| — | 2.778 | 0.109 | 7/64 | 31 | 0.227 | 0.0089 | — |
| 10 | 2.588 | 0.102 | — | 32 | 0.202 | 0.0080 | — |
| — | 2.381 | 0.094 | 3/32 | 33 | 0.180 | 0.0071 | — |
| 11 | 2.304 | 0.091 | — | 34 | 0.160 | 0.0063 | — |
| 12 | 2.052 | 0.081 | — | 35 | 0.142 | 0.0056 | — |
| — | 1.984 | 0.078 | 5/64 | 36 | 0.127 | 0.0050 | — |
| 13 | 1.828 | 0.072 | — | 37 | 0.113 | 0.0045 | — |
| 14 | 1.628 | 0.064 | — | 38 | 0.101 | 0.0040 | — |
| — | 1.588 | 0.063 | 1/16 | 39 | 0.090 | 0.0035 | — |
| 15 | 1.449 | 0.057 | — | 40 | 0.080 | 0.0031 | — |