Bar Diameters
U.S. Standard Diameters with Imperial Specifications
| Nominal Dimensions | |||||
| Bar Size Imperial | Bar Size Soft Metric | Actual Diameter (in) | Nominal Diameter (in) | Area (in2) | Weight (lb/ft) |
| #3 | 10mm | 0.4375 | 0.3750 | 0.11 | 0.376 |
| #4 | 13mm | 0.5625 | 0.5000 | 0.20 | 0.668 |
| #5 | 16mm | 0.6875 | 0.6250 | 0.31 | 1.043 |
| #6 | 19mm | 0.8750 | 0.7500 | 0.44 | 1.502 |
| #7 | 22mm | 1.0000 | .08750 | 0.60 | 2.044 |
| #8 | 25mm | 1.1250 | 1.000 | 0.79 | 2.670 |
| #9 | 29mm | 1.2500 | 1.1280 | 1.00 | 3.400 |
| #10 | 32mm | 1.4375 | 1.2700 | 1.27 | 4.303 |
| #11 | 36mm | 1.6250 | 1.4100 | 1.56 | 5.313 |
| #14 | 43mm | 1.8750 | 1.6930 | 2.25 | 7.650 |
| #18 | 57mm | 2.5000 | 2.2570 | 4.00 | 13.600 |
