Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/75-17 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.24 (844.3) | 33.16 (842.2) | -0.08 (-2.1) -0.2% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 104.43 (2652.45) | 104.17 (2645.85) | -0.26 (-6.6) -0.2% |
| Sidewall Height inches (mm) | 8.12 (206.25) | 7.58 (192.5) | -0.54 (-13.75) -6.7% |
| Revolutions per mile (km) | 606.74 (377.01) | 608.25 (377.95) | 1.51 (0.94) 0.2% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.95 mph (32.11 km/h) |
| 25 mph (40.23 km/h) | 24.94 mph (40.13 km/h) |
| 30 mph (48.28 km/h) | 29.93 mph (48.16 km/h) |
| 35 mph (56.33 km/h) | 34.91 mph (56.19 km/h) |
| 40 mph (64.37 km/h) | 39.9 mph (64.21 km/h) |
| 45 mph (72.42 km/h) | 44.89 mph (72.24 km/h) |
| 50 mph (80.47 km/h) | 49.88 mph (80.27 km/h) |
| 55 mph (88.51 km/h) | 54.86 mph (88.29 km/h) |
| 60 mph (96.56 km/h) | 59.85 mph (96.32 km/h) |
| 65 mph (104.61 km/h) | 64.84 mph (104.35 km/h) |
| 70 mph (112.65 km/h) | 69.83 mph (112.37 km/h) |
| 75 mph (120.7 km/h) | 74.81 mph (120.4 km/h) |
| 80 mph (128.75 km/h) | 79.8 mph (128.43 km/h) |
| 85 mph (136.79 km/h) | 84.79 mph (136.45 km/h) |
| 90 mph (144.84 km/h) | 89.78 mph (144.48 km/h) |
| 95 mph (152.89 km/h) | 94.76 mph (152.51 km/h) |
| 100 mph (160.93 km/h) | 99.75 mph (160.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1548 | 1798 | 1937 | 2022 | 2114 | 2180 | 2253 | 2338 | 2457 | 2575 | 2707 | 2813 | 3004 | 3214 | 3379 | 3484 | 3544 | 3761 | 4064 | 4723 |
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