Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 225/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 22.97 (583.5) | 2 (50.8) 9.5% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 65.89 (1673.53) | 72.17 (1833.12) | 6.28 (159.59) 9.5% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 3.99 (101.25) | 0 (0) 0% |
| Revolutions per mile (km) | 961.65 (597.54) | 877.93 (545.52) | -83.72 (-52.02) -8.7% |
225/45-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.91 mph (35.26 km/h) |
| 25 mph (40.23 km/h) | 27.38 mph (44.07 km/h) |
| 30 mph (48.28 km/h) | 32.86 mph (52.88 km/h) |
| 35 mph (56.33 km/h) | 38.34 mph (61.7 km/h) |
| 40 mph (64.37 km/h) | 43.81 mph (70.51 km/h) |
| 45 mph (72.42 km/h) | 49.29 mph (79.33 km/h) |
| 50 mph (80.47 km/h) | 54.77 mph (88.14 km/h) |
| 55 mph (88.51 km/h) | 60.24 mph (96.96 km/h) |
| 60 mph (96.56 km/h) | 65.72 mph (105.77 km/h) |
| 65 mph (104.61 km/h) | 71.2 mph (114.58 km/h) |
| 70 mph (112.65 km/h) | 76.68 mph (123.4 km/h) |
| 75 mph (120.7 km/h) | 82.15 mph (132.21 km/h) |
| 80 mph (128.75 km/h) | 87.63 mph (141.03 km/h) |
| 85 mph (136.79 km/h) | 93.11 mph (149.84 km/h) |
| 90 mph (144.84 km/h) | 98.58 mph (158.65 km/h) |
| 95 mph (152.89 km/h) | 104.06 mph (167.47 km/h) |
| 100 mph (160.93 km/h) | 109.54 mph (176.28 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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