Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/85-18 | 215/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.7 (703.7) | 28 (711.3) | 0.3 (7.6) 1.1% |
| Width inches (mm) | 5.71 (145) | 8.46 (215) | 2.76 (70) 48.3% |
| Circum. inches (mm) | 87.04 (2210.74) | 87.98 (2234.61) | 0.94 (23.88) 1.1% |
| Sidewall Height inches (mm) | 4.85 (123.25) | 5.5 (139.75) | 0.65 (16.5) 13.4% |
| Revolutions per mile (km) | 727.97 (452.34) | 720.19 (447.5) | -7.78 (-4.83) -1.1% |
215/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.53 km/h) |
| 25 mph (40.23 km/h) | 25.27 mph (40.67 km/h) |
| 30 mph (48.28 km/h) | 30.32 mph (48.8 km/h) |
| 35 mph (56.33 km/h) | 35.38 mph (56.94 km/h) |
| 40 mph (64.37 km/h) | 40.43 mph (65.07 km/h) |
| 45 mph (72.42 km/h) | 45.49 mph (73.2 km/h) |
| 50 mph (80.47 km/h) | 50.54 mph (81.34 km/h) |
| 55 mph (88.51 km/h) | 55.59 mph (89.47 km/h) |
| 60 mph (96.56 km/h) | 60.65 mph (97.6 km/h) |
| 65 mph (104.61 km/h) | 65.7 mph (105.74 km/h) |
| 70 mph (112.65 km/h) | 70.76 mph (113.87 km/h) |
| 75 mph (120.7 km/h) | 75.81 mph (122 km/h) |
| 80 mph (128.75 km/h) | 80.86 mph (130.14 km/h) |
| 85 mph (136.79 km/h) | 85.92 mph (138.27 km/h) |
| 90 mph (144.84 km/h) | 90.97 mph (146.41 km/h) |
| 95 mph (152.89 km/h) | 96.03 mph (154.54 km/h) |
| 100 mph (160.93 km/h) | 101.08 mph (162.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1833 | 2129 | 2293 | 2394 | 2503 | 2581 | 2667 | 2769 | 2909 | 3049 | 3205 | 3330 | 3556 | 3806 | 4001 | 4126 | 4196 | 4453 | 4812 | 5592 |
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