Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/45-18 | 225/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.62 (650.7) | 26.09 (662.6) | 0.47 (11.9) 1.8% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 80.48 (2044.23) | 81.95 (2081.62) | 1.47 (37.38) 1.8% |
| Sidewall Height inches (mm) | 3.81 (96.75) | 3.54 (90) | -0.27 (-6.75) -7% |
| Revolutions per mile (km) | 787.26 (489.18) | 773.12 (480.39) | -14.14 (-8.79) -1.8% |
225/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.78 km/h) |
| 25 mph (40.23 km/h) | 25.46 mph (40.97 km/h) |
| 30 mph (48.28 km/h) | 30.55 mph (49.16 km/h) |
| 35 mph (56.33 km/h) | 35.64 mph (57.36 km/h) |
| 40 mph (64.37 km/h) | 40.73 mph (65.55 km/h) |
| 45 mph (72.42 km/h) | 45.82 mph (73.75 km/h) |
| 50 mph (80.47 km/h) | 50.91 mph (81.94 km/h) |
| 55 mph (88.51 km/h) | 56.01 mph (90.13 km/h) |
| 60 mph (96.56 km/h) | 61.1 mph (98.33 km/h) |
| 65 mph (104.61 km/h) | 66.19 mph (106.52 km/h) |
| 70 mph (112.65 km/h) | 71.28 mph (114.71 km/h) |
| 75 mph (120.7 km/h) | 76.37 mph (122.91 km/h) |
| 80 mph (128.75 km/h) | 81.46 mph (131.1 km/h) |
| 85 mph (136.79 km/h) | 86.55 mph (139.3 km/h) |
| 90 mph (144.84 km/h) | 91.65 mph (147.49 km/h) |
| 95 mph (152.89 km/h) | 96.74 mph (155.68 km/h) |
| 100 mph (160.93 km/h) | 101.83 mph (163.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1967 | 2286 | 2461 | 2570 | 2687 | 2771 | 2863 | 2972 | 3123 | 3273 | 3441 | 3575 | 3818 | 4086 | 4295 | 4429 | 4504 | 4780 | 5166 | 6003 |
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