Graph
Metric Dimensions
255/* size(s) in mm (
Jump to Imperial Table)
| size |
sidewall height |
ID inner diameter |
OD overall diameter |
circumference |
ride height overall radius |
| 255 30 19 | 76.5mm | 482.6mm | 635.6mm | 1996.8mm | 317.8mm |
| 255 35 18 | 89.25mm | 457.2mm | 635.7mm | 1997.11mm | 317.85mm |
| 255 40 17 | 102mm | 431.8mm | 635.8mm | 1997.42mm | 317.9mm |
| 255 30 20 | 76.5mm | 508mm | 661mm | 2076.59mm | 330.5mm |
| 255 35 19 | 89.25mm | 482.6mm | 661.1mm | 2076.91mm | 330.55mm |
| 255 40 18 | 102mm | 457.2mm | 661.2mm | 2077.22mm | 330.6mm |
| 255 45 17 | 114.75mm | 431.8mm | 661.3mm | 2077.54mm | 330.65mm |
| 255 30 21 | 76.5mm | 533.4mm | 686.4mm | 2156.39mm | 343.2mm |
| 255 35 20 | 89.25mm | 508mm | 686.5mm | 2156.7mm | 343.25mm |
| 255 40 19 | 102mm | 482.6mm | 686.6mm | 2157.02mm | 343.3mm |
| 255 45 18 | 114.75mm | 457.2mm | 686.7mm | 2157.33mm | 343.35mm |
| 255 50 17 | 127.5mm | 431.8mm | 686.8mm | 2157.65mm | 343.4mm |
| 255 60 15 | 153mm | 381mm | 687mm | 2158.27mm | 343.5mm |
| 255 30 22 | 76.5mm | 558.8mm | 711.8mm | 2236.19mm | 355.9mm |
| 255 35 21 | 89.25mm | 533.4mm | 711.9mm | 2236.5mm | 355.95mm |
| 255 40 20 | 102mm | 508mm | 712mm | 2236.81mm | 356mm |
| 255 45 19 | 114.75mm | 482.6mm | 712.1mm | 2237.13mm | 356.05mm |
| 255 55 17 | 140.25mm | 431.8mm | 712.3mm | 2237.76mm | 356.15mm |
| 255 35 22 | 89.25mm | 558.8mm | 737.3mm | 2316.3mm | 368.65mm |
| 255 45 20 | 114.75mm | 508mm | 737.5mm | 2316.92mm | 368.75mm |
| 255 50 19 | 127.5mm | 482.6mm | 737.6mm | 2317.24mm | 368.8mm |
| 255 55 18 | 140.25mm | 457.2mm | 737.7mm | 2317.55mm | 368.85mm |
| 255 60 17 | 153mm | 431.8mm | 737.8mm | 2317.87mm | 368.9mm |
| 255 65 16 | 165.75mm | 406.4mm | 737.9mm | 2318.18mm | 368.95mm |
| 255 70 15 | 178.5mm | 381mm | 738mm | 2318.5mm | 369mm |
| 255 50 20 | 127.5mm | 508mm | 763mm | 2397.04mm | 381.5mm |
| 255 55 19 | 140.25mm | 482.6mm | 763.1mm | 2397.35mm | 381.55mm |
| 255 60 18 | 153mm | 457.2mm | 763.2mm | 2397.66mm | 381.6mm |
| 255 65 17 | 165.75mm | 431.8mm | 763.3mm | 2397.98mm | 381.65mm |
| 255 70 16 | 178.5mm | 406.4mm | 763.4mm | 2398.29mm | 381.7mm |
| 255 50 21 | 127.5mm | 533.4mm | 788.4mm | 2476.83mm | 394.2mm |
Imperial Dimensions
255/* size(s) in inches (
Jump to Metric Table)
| size |
sidewall height |
ID inner diameter |
OD overall diameter |
circumference |
ride height overall radius |
| 255 30 19 | 3.01 inches | 19 inches | 25.02 inches | 78.61 inches | 12.51 inches |
| 255 35 18 | 3.51 inches | 18 inches | 25.03 inches | 78.63 inches | 12.51 inches |
| 255 40 17 | 4.02 inches | 17 inches | 25.03 inches | 78.64 inches | 12.52 inches |
| 255 30 20 | 3.01 inches | 20 inches | 26.02 inches | 81.76 inches | 13.01 inches |
| 255 35 19 | 3.51 inches | 19 inches | 26.03 inches | 81.77 inches | 13.01 inches |
| 255 40 18 | 4.02 inches | 18 inches | 26.03 inches | 81.78 inches | 13.02 inches |
| 255 45 17 | 4.52 inches | 17 inches | 26.04 inches | 81.79 inches | 13.02 inches |
| 255 30 21 | 3.01 inches | 21 inches | 27.02 inches | 84.9 inches | 13.51 inches |
| 255 35 20 | 3.51 inches | 20 inches | 27.03 inches | 84.91 inches | 13.51 inches |
| 255 40 19 | 4.02 inches | 19 inches | 27.03 inches | 84.92 inches | 13.52 inches |
| 255 45 18 | 4.52 inches | 18 inches | 27.04 inches | 84.93 inches | 13.52 inches |
| 255 50 17 | 5.02 inches | 17 inches | 27.04 inches | 84.95 inches | 13.52 inches |
| 255 60 15 | 6.02 inches | 15 inches | 27.05 inches | 84.97 inches | 13.52 inches |
| 255 30 22 | 3.01 inches | 22 inches | 28.02 inches | 88.04 inches | 14.01 inches |
| 255 35 21 | 3.51 inches | 21 inches | 28.03 inches | 88.05 inches | 14.01 inches |
| 255 40 20 | 4.02 inches | 20 inches | 28.03 inches | 88.06 inches | 14.02 inches |
| 255 45 19 | 4.52 inches | 19 inches | 28.04 inches | 88.08 inches | 14.02 inches |
| 255 55 17 | 5.52 inches | 17 inches | 28.04 inches | 88.1 inches | 14.02 inches |
| 255 35 22 | 3.51 inches | 22 inches | 29.03 inches | 91.19 inches | 14.51 inches |
| 255 45 20 | 4.52 inches | 20 inches | 29.04 inches | 91.22 inches | 14.52 inches |
| 255 50 19 | 5.02 inches | 19 inches | 29.04 inches | 91.23 inches | 14.52 inches |
| 255 55 18 | 5.52 inches | 18 inches | 29.04 inches | 91.24 inches | 14.52 inches |
| 255 60 17 | 6.02 inches | 17 inches | 29.05 inches | 91.25 inches | 14.52 inches |
| 255 65 16 | 6.53 inches | 16 inches | 29.05 inches | 91.27 inches | 14.53 inches |
| 255 70 15 | 7.03 inches | 15 inches | 29.06 inches | 91.28 inches | 14.53 inches |
| 255 50 20 | 5.02 inches | 20 inches | 30.04 inches | 94.37 inches | 15.02 inches |
| 255 55 19 | 5.52 inches | 19 inches | 30.04 inches | 94.38 inches | 15.02 inches |
| 255 60 18 | 6.02 inches | 18 inches | 30.05 inches | 94.4 inches | 15.02 inches |
| 255 65 17 | 6.53 inches | 17 inches | 30.05 inches | 94.41 inches | 15.03 inches |
| 255 70 16 | 7.03 inches | 16 inches | 30.06 inches | 94.42 inches | 15.03 inches |
| 255 50 21 | 5.02 inches | 21 inches | 31.04 inches | 97.51 inches | 15.52 inches |