Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/60-18 | 225/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.1 (739.2) | 25.86 (656.8) | -3.24 (-82.4) -11.1% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 91.43 (2322.27) | 81.24 (2063.4) | -10.19 (-258.87) -11.1% |
| Sidewall Height inches (mm) | 5.55 (141) | 4.43 (112.5) | -1.12 (-28.5) -20.2% |
| Revolutions per mile (km) | 693.01 (430.61) | 779.95 (484.64) | 86.94 (54.02) 12.5% |
225/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.77 mph (28.6 km/h) |
| 25 mph (40.23 km/h) | 22.21 mph (35.75 km/h) |
| 30 mph (48.28 km/h) | 26.66 mph (42.9 km/h) |
| 35 mph (56.33 km/h) | 31.1 mph (50.05 km/h) |
| 40 mph (64.37 km/h) | 35.54 mph (57.2 km/h) |
| 45 mph (72.42 km/h) | 39.98 mph (64.35 km/h) |
| 50 mph (80.47 km/h) | 44.43 mph (71.5 km/h) |
| 55 mph (88.51 km/h) | 48.87 mph (78.65 km/h) |
| 60 mph (96.56 km/h) | 53.31 mph (85.8 km/h) |
| 65 mph (104.61 km/h) | 57.75 mph (92.95 km/h) |
| 70 mph (112.65 km/h) | 62.2 mph (100.1 km/h) |
| 75 mph (120.7 km/h) | 66.64 mph (107.25 km/h) |
| 80 mph (128.75 km/h) | 71.08 mph (114.4 km/h) |
| 85 mph (136.79 km/h) | 75.52 mph (121.55 km/h) |
| 90 mph (144.84 km/h) | 79.97 mph (128.7 km/h) |
| 95 mph (152.89 km/h) | 84.41 mph (135.85 km/h) |
| 100 mph (160.93 km/h) | 88.85 mph (143 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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