Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/30-20 | 255/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.5 (673) | 27.03 (686.5) | 0.53 (13.5) 2% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 83.24 (2114.29) | 84.91 (2156.7) | 1.67 (42.41) 2% |
| Sidewall Height inches (mm) | 3.25 (82.5) | 3.51 (89.25) | 0.27 (6.75) 8.2% |
| Revolutions per mile (km) | 761.17 (472.97) | 746.21 (463.67) | -14.97 (-9.3) -2% |
255/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.4 mph (32.83 km/h) |
| 25 mph (40.23 km/h) | 25.5 mph (41.04 km/h) |
| 30 mph (48.28 km/h) | 30.6 mph (49.25 km/h) |
| 35 mph (56.33 km/h) | 35.7 mph (57.46 km/h) |
| 40 mph (64.37 km/h) | 40.8 mph (65.67 km/h) |
| 45 mph (72.42 km/h) | 45.9 mph (73.87 km/h) |
| 50 mph (80.47 km/h) | 51 mph (82.08 km/h) |
| 55 mph (88.51 km/h) | 56.1 mph (90.29 km/h) |
| 60 mph (96.56 km/h) | 61.2 mph (98.5 km/h) |
| 65 mph (104.61 km/h) | 66.3 mph (106.71 km/h) |
| 70 mph (112.65 km/h) | 71.4 mph (114.91 km/h) |
| 75 mph (120.7 km/h) | 76.5 mph (123.12 km/h) |
| 80 mph (128.75 km/h) | 81.6 mph (131.33 km/h) |
| 85 mph (136.79 km/h) | 86.71 mph (139.54 km/h) |
| 90 mph (144.84 km/h) | 91.81 mph (147.75 km/h) |
| 95 mph (152.89 km/h) | 96.91 mph (155.95 km/h) |
| 100 mph (160.93 km/h) | 102.01 mph (164.16 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2376 | 2481 | 2594 | 2675 | 2764 | 2869 | 3014 | 3160 | 3321 | 3450 | 3685 | 3943 | 4145 | 4275 | 4347 | 4614 | 4986 | 5794 |
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