Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-18 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.16 (842.2) | 33.83 (859.3) | 0.67 (17.1) 2% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 104.17 (2645.85) | 106.28 (2699.57) | 2.12 (53.72) 2% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 8.42 (213.75) | 0.84 (21.25) 11% |
| Revolutions per mile (km) | 608.25 (377.95) | 596.15 (370.43) | -12.1 (-7.52) -2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.41 mph (32.84 km/h) |
| 25 mph (40.23 km/h) | 25.51 mph (41.05 km/h) |
| 30 mph (48.28 km/h) | 30.61 mph (49.26 km/h) |
| 35 mph (56.33 km/h) | 35.71 mph (57.47 km/h) |
| 40 mph (64.37 km/h) | 40.81 mph (65.68 km/h) |
| 45 mph (72.42 km/h) | 45.91 mph (73.89 km/h) |
| 50 mph (80.47 km/h) | 51.02 mph (82.1 km/h) |
| 55 mph (88.51 km/h) | 56.12 mph (90.31 km/h) |
| 60 mph (96.56 km/h) | 61.22 mph (98.52 km/h) |
| 65 mph (104.61 km/h) | 66.32 mph (106.73 km/h) |
| 70 mph (112.65 km/h) | 71.42 mph (114.94 km/h) |
| 75 mph (120.7 km/h) | 76.52 mph (123.15 km/h) |
| 80 mph (128.75 km/h) | 81.62 mph (131.36 km/h) |
| 85 mph (136.79 km/h) | 86.73 mph (139.57 km/h) |
| 90 mph (144.84 km/h) | 91.83 mph (147.78 km/h) |
| 95 mph (152.89 km/h) | 96.93 mph (155.99 km/h) |
| 100 mph (160.93 km/h) | 102.03 mph (164.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1517 | 1762 | 1898 | 1982 | 2072 | 2137 | 2208 | 2292 | 2408 | 2524 | 2653 | 2757 | 2944 | 3150 | 3312 | 3415 | 3473 | 3686 | 3983 | 4629 |
Better Fuel Economy Factory Ratios Increased Power
