Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-18 | 215/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.97 (659.7) | 25.46 (646.8) | -0.51 (-12.9) -2% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 81.59 (2072.51) | 80 (2031.98) | -1.6 (-40.53) -2% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.23 (107.5) | 0.25 (6.25) 6.2% |
| Revolutions per mile (km) | 776.52 (482.51) | 792.01 (492.13) | 15.49 (9.62) 2% |
215/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.61 mph (31.56 km/h) |
| 25 mph (40.23 km/h) | 24.51 mph (39.45 km/h) |
| 30 mph (48.28 km/h) | 29.41 mph (47.34 km/h) |
| 35 mph (56.33 km/h) | 34.32 mph (55.23 km/h) |
| 40 mph (64.37 km/h) | 39.22 mph (63.12 km/h) |
| 45 mph (72.42 km/h) | 44.12 mph (71 km/h) |
| 50 mph (80.47 km/h) | 49.02 mph (78.89 km/h) |
| 55 mph (88.51 km/h) | 53.92 mph (86.78 km/h) |
| 60 mph (96.56 km/h) | 58.83 mph (94.67 km/h) |
| 65 mph (104.61 km/h) | 63.73 mph (102.56 km/h) |
| 70 mph (112.65 km/h) | 68.63 mph (110.45 km/h) |
| 75 mph (120.7 km/h) | 73.53 mph (118.34 km/h) |
| 80 mph (128.75 km/h) | 78.44 mph (126.23 km/h) |
| 85 mph (136.79 km/h) | 83.34 mph (134.12 km/h) |
| 90 mph (144.84 km/h) | 88.24 mph (142.01 km/h) |
| 95 mph (152.89 km/h) | 93.14 mph (149.9 km/h) |
| 100 mph (160.93 km/h) | 98.04 mph (157.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | 2341 | 2522 | 2633 | 2753 | 2839 | 2933 | 3045 | 3199 | 3353 | 3525 | 3662 | 3911 | 4185 | 4400 | 4537 | 4614 | 4897 | 5292 | 6149 |
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