Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/60-16 | 225/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.69 (652.4) | 25.97 (659.7) | 0.29 (7.3) 1.1% |
| Width inches (mm) | 8.07 (205) | 8.86 (225) | 0.79 (20) 9.8% |
| Circum. inches (mm) | 80.69 (2049.58) | 81.59 (2072.51) | 0.9 (22.93) 1.1% |
| Sidewall Height inches (mm) | 4.84 (123) | 3.99 (101.25) | -0.86 (-21.75) -17.7% |
| Revolutions per mile (km) | 785.21 (487.91) | 776.52 (482.51) | -8.69 (-5.4) -1.1% |
225/45-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.55 km/h) |
| 25 mph (40.23 km/h) | 25.28 mph (40.68 km/h) |
| 30 mph (48.28 km/h) | 30.34 mph (48.82 km/h) |
| 35 mph (56.33 km/h) | 35.39 mph (56.96 km/h) |
| 40 mph (64.37 km/h) | 40.45 mph (65.09 km/h) |
| 45 mph (72.42 km/h) | 45.5 mph (73.23 km/h) |
| 50 mph (80.47 km/h) | 50.56 mph (81.37 km/h) |
| 55 mph (88.51 km/h) | 55.62 mph (89.5 km/h) |
| 60 mph (96.56 km/h) | 60.67 mph (97.64 km/h) |
| 65 mph (104.61 km/h) | 65.73 mph (105.78 km/h) |
| 70 mph (112.65 km/h) | 70.78 mph (113.91 km/h) |
| 75 mph (120.7 km/h) | 75.84 mph (122.05 km/h) |
| 80 mph (128.75 km/h) | 80.9 mph (130.19 km/h) |
| 85 mph (136.79 km/h) | 85.95 mph (138.33 km/h) |
| 90 mph (144.84 km/h) | 91.01 mph (146.46 km/h) |
| 95 mph (152.89 km/h) | 96.06 mph (154.6 km/h) |
| 100 mph (160.93 km/h) | 101.12 mph (162.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 2296 | 2472 | 2582 | 2699 | 2783 | 2876 | 2985 | 3137 | 3288 | 3456 | 3591 | 3834 | 4104 | 4314 | 4448 | 4524 | 4801 | 5188 | 6029 |
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