Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 225/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 22.97 (583.5) | -1.06 (-27) -4.4% |
| Width inches (mm) | 10.04 (255) | 8.86 (225) | -1.18 (-30) -11.8% |
| Circum. inches (mm) | 75.51 (1917.94) | 72.17 (1833.12) | -3.34 (-84.82) -4.4% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 3.99 (101.25) | -0.53 (-13.5) -11.8% |
| Revolutions per mile (km) | 839.1 (521.39) | 877.93 (545.52) | 38.83 (24.13) 4.6% |
225/45-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.12 mph (30.76 km/h) |
| 25 mph (40.23 km/h) | 23.89 mph (38.45 km/h) |
| 30 mph (48.28 km/h) | 28.67 mph (46.15 km/h) |
| 35 mph (56.33 km/h) | 33.45 mph (53.84 km/h) |
| 40 mph (64.37 km/h) | 38.23 mph (61.53 km/h) |
| 45 mph (72.42 km/h) | 43.01 mph (69.22 km/h) |
| 50 mph (80.47 km/h) | 47.79 mph (76.91 km/h) |
| 55 mph (88.51 km/h) | 52.57 mph (84.6 km/h) |
| 60 mph (96.56 km/h) | 57.35 mph (92.29 km/h) |
| 65 mph (104.61 km/h) | 62.13 mph (99.98 km/h) |
| 70 mph (112.65 km/h) | 66.9 mph (107.67 km/h) |
| 75 mph (120.7 km/h) | 71.68 mph (115.36 km/h) |
| 80 mph (128.75 km/h) | 76.46 mph (123.05 km/h) |
| 85 mph (136.79 km/h) | 81.24 mph (130.74 km/h) |
| 90 mph (144.84 km/h) | 86.02 mph (138.44 km/h) |
| 95 mph (152.89 km/h) | 90.8 mph (146.13 km/h) |
| 100 mph (160.93 km/h) | 95.58 mph (153.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2234 | 2595 | 2795 | 2919 | 3052 | 3147 | 3251 | 3375 | 3546 | 3717 | 3907 | 4060 | 4335 | 4639 | 4877 | 5029 | 5115 | 5429 | 5866 | 6817 |
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