Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/75-18 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.65 (854.7) | 33.16 (842.2) | -0.49 (-12.5) -1.5% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 105.71 (2685.12) | 104.17 (2645.85) | -1.55 (-39.27) -1.5% |
| Sidewall Height inches (mm) | 7.82 (198.75) | 7.58 (192.5) | -0.25 (-6.25) -3.1% |
| Revolutions per mile (km) | 599.36 (372.42) | 608.25 (377.95) | 8.9 (5.53) 1.5% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.72 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.65 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.57 km/h) |
| 35 mph (56.33 km/h) | 34.49 mph (55.5 km/h) |
| 40 mph (64.37 km/h) | 39.41 mph (63.43 km/h) |
| 45 mph (72.42 km/h) | 44.34 mph (71.36 km/h) |
| 50 mph (80.47 km/h) | 49.27 mph (79.29 km/h) |
| 55 mph (88.51 km/h) | 54.2 mph (87.22 km/h) |
| 60 mph (96.56 km/h) | 59.12 mph (95.15 km/h) |
| 65 mph (104.61 km/h) | 64.05 mph (103.08 km/h) |
| 70 mph (112.65 km/h) | 68.98 mph (111.01 km/h) |
| 75 mph (120.7 km/h) | 73.9 mph (118.94 km/h) |
| 80 mph (128.75 km/h) | 78.83 mph (126.86 km/h) |
| 85 mph (136.79 km/h) | 83.76 mph (134.79 km/h) |
| 90 mph (144.84 km/h) | 88.68 mph (142.72 km/h) |
| 95 mph (152.89 km/h) | 93.61 mph (150.65 km/h) |
| 100 mph (160.93 km/h) | 98.54 mph (158.58 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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