Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-17 | 255/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.4 (746.8) | 31.06 (788.8) | 1.65 (42) 5.6% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 92.37 (2346.14) | 97.56 (2478.09) | 5.19 (131.95) 5.6% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 7.03 (178.5) | 0.83 (21) 13.3% |
| Revolutions per mile (km) | 685.95 (426.23) | 649.43 (403.54) | -36.52 (-22.69) -5.3% |
255/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.12 mph (34 km/h) |
| 25 mph (40.23 km/h) | 26.41 mph (42.5 km/h) |
| 30 mph (48.28 km/h) | 31.69 mph (51 km/h) |
| 35 mph (56.33 km/h) | 36.97 mph (59.49 km/h) |
| 40 mph (64.37 km/h) | 42.25 mph (67.99 km/h) |
| 45 mph (72.42 km/h) | 47.53 mph (76.49 km/h) |
| 50 mph (80.47 km/h) | 52.81 mph (84.99 km/h) |
| 55 mph (88.51 km/h) | 58.09 mph (93.49 km/h) |
| 60 mph (96.56 km/h) | 63.37 mph (101.99 km/h) |
| 65 mph (104.61 km/h) | 68.66 mph (110.49 km/h) |
| 70 mph (112.65 km/h) | 73.94 mph (118.99 km/h) |
| 75 mph (120.7 km/h) | 79.22 mph (127.49 km/h) |
| 80 mph (128.75 km/h) | 84.5 mph (135.99 km/h) |
| 85 mph (136.79 km/h) | 89.78 mph (144.49 km/h) |
| 90 mph (144.84 km/h) | 95.06 mph (152.99 km/h) |
| 95 mph (152.89 km/h) | 100.34 mph (161.49 km/h) |
| 100 mph (160.93 km/h) | 105.62 mph (169.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1653 | 1920 | 2068 | 2159 | 2257 | 2328 | 2405 | 2497 | 2623 | 2750 | 2890 | 3003 | 3207 | 3432 | 3608 | 3720 | 3784 | 4016 | 4339 | 5042 |
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