Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-18 | 155/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.54 (674.2) | 25.54 (648.8) | -1 (-25.4) -3.8% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 83.39 (2118.06) | 80.25 (2038.27) | -3.14 (-79.8) -3.8% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.27 (108.5) | 0 (0) 0% |
| Revolutions per mile (km) | 759.82 (472.13) | 789.57 (490.61) | 29.75 (18.48) 3.9% |
155/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.06 mph (38.72 km/h) |
| 30 mph (48.28 km/h) | 28.87 mph (46.46 km/h) |
| 35 mph (56.33 km/h) | 33.68 mph (54.21 km/h) |
| 40 mph (64.37 km/h) | 38.49 mph (61.95 km/h) |
| 45 mph (72.42 km/h) | 43.3 mph (69.69 km/h) |
| 50 mph (80.47 km/h) | 48.12 mph (77.44 km/h) |
| 55 mph (88.51 km/h) | 52.93 mph (85.18 km/h) |
| 60 mph (96.56 km/h) | 57.74 mph (92.92 km/h) |
| 65 mph (104.61 km/h) | 62.55 mph (100.67 km/h) |
| 70 mph (112.65 km/h) | 67.36 mph (108.41 km/h) |
| 75 mph (120.7 km/h) | 72.17 mph (116.15 km/h) |
| 80 mph (128.75 km/h) | 76.99 mph (123.9 km/h) |
| 85 mph (136.79 km/h) | 81.8 mph (131.64 km/h) |
| 90 mph (144.84 km/h) | 86.61 mph (139.38 km/h) |
| 95 mph (152.89 km/h) | 91.42 mph (147.13 km/h) |
| 100 mph (160.93 km/h) | 96.23 mph (154.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 2334 | 2514 | 2625 | 2745 | 2830 | 2924 | 3035 | 3189 | 3343 | 3514 | 3651 | 3899 | 4172 | 4386 | 4523 | 4600 | 4882 | 5275 | 6130 |
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