Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/45-18 | 225/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.5 (673.2) | 25.86 (656.8) | -0.65 (-16.4) -2.4% |
| Width inches (mm) | 9.45 (240) | 8.86 (225) | -0.59 (-15) -6.3% |
| Circum. inches (mm) | 83.26 (2114.92) | 81.24 (2063.4) | -2.03 (-51.52) -2.4% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.43 (112.5) | 0.18 (4.5) 4.2% |
| Revolutions per mile (km) | 760.95 (472.83) | 779.95 (484.64) | 19 (11.81) 2.5% |
225/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.4 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.25 km/h) |
| 30 mph (48.28 km/h) | 29.27 mph (47.1 km/h) |
| 35 mph (56.33 km/h) | 34.15 mph (54.95 km/h) |
| 40 mph (64.37 km/h) | 39.03 mph (62.81 km/h) |
| 45 mph (72.42 km/h) | 43.9 mph (70.66 km/h) |
| 50 mph (80.47 km/h) | 48.78 mph (78.51 km/h) |
| 55 mph (88.51 km/h) | 53.66 mph (86.36 km/h) |
| 60 mph (96.56 km/h) | 58.54 mph (94.21 km/h) |
| 65 mph (104.61 km/h) | 63.42 mph (102.06 km/h) |
| 70 mph (112.65 km/h) | 68.29 mph (109.91 km/h) |
| 75 mph (120.7 km/h) | 73.17 mph (117.76 km/h) |
| 80 mph (128.75 km/h) | 78.05 mph (125.61 km/h) |
| 85 mph (136.79 km/h) | 82.93 mph (133.46 km/h) |
| 90 mph (144.84 km/h) | 87.81 mph (141.31 km/h) |
| 95 mph (152.89 km/h) | 92.69 mph (149.16 km/h) |
| 100 mph (160.93 km/h) | 97.56 mph (157.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 2306 | 2483 | 2593 | 2711 | 2796 | 2889 | 2998 | 3150 | 3302 | 3471 | 3606 | 3851 | 4122 | 4333 | 4468 | 4544 | 4823 | 5211 | 6056 |
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