Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/10-17 | 305/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32 (812.8) | 33.81 (858.8) | 1.81 (46) 5.7% |
| Width inches (mm) | 10 (254) | 12.01 (305) | 2.01 (51) 20.1% |
| Circum. inches (mm) | 100.53 (2553.49) | 106.22 (2698) | 5.69 (144.51) 5.7% |
| Sidewall Height inches (mm) | 7.5 (190.5) | 8.41 (213.5) | 0.91 (23) 12.1% |
| Revolutions per mile (km) | 630.25 (391.62) | 596.5 (370.64) | -33.76 (-20.98) -5.4% |
305/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.13 mph (34.01 km/h) |
| 25 mph (40.23 km/h) | 26.41 mph (42.51 km/h) |
| 30 mph (48.28 km/h) | 31.7 mph (51.01 km/h) |
| 35 mph (56.33 km/h) | 36.98 mph (59.51 km/h) |
| 40 mph (64.37 km/h) | 42.26 mph (68.02 km/h) |
| 45 mph (72.42 km/h) | 47.55 mph (76.52 km/h) |
| 50 mph (80.47 km/h) | 52.83 mph (85.02 km/h) |
| 55 mph (88.51 km/h) | 58.11 mph (93.52 km/h) |
| 60 mph (96.56 km/h) | 63.4 mph (102.03 km/h) |
| 65 mph (104.61 km/h) | 68.68 mph (110.53 km/h) |
| 70 mph (112.65 km/h) | 73.96 mph (119.03 km/h) |
| 75 mph (120.7 km/h) | 79.24 mph (127.53 km/h) |
| 80 mph (128.75 km/h) | 84.53 mph (136.03 km/h) |
| 85 mph (136.79 km/h) | 89.81 mph (144.54 km/h) |
| 90 mph (144.84 km/h) | 95.09 mph (153.04 km/h) |
| 95 mph (152.89 km/h) | 100.38 mph (161.54 km/h) |
| 100 mph (160.93 km/h) | 105.66 mph (170.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1518 | 1763 | 1899 | 1983 | 2073 | 2138 | 2209 | 2293 | 2409 | 2526 | 2655 | 2758 | 2946 | 3152 | 3314 | 3417 | 3475 | 3688 | 3985 | 4631 |
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