Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/70-16 | 305/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.81 (833.4) | 33.81 (858.8) | 1 (25.4) 3% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 103.08 (2618.2) | 106.22 (2698) | 3.14 (79.8) 3% |
| Sidewall Height inches (mm) | 8.41 (213.5) | 8.41 (213.5) | 0 (0) 0% |
| Revolutions per mile (km) | 614.67 (381.94) | 596.5 (370.64) | -18.18 (-11.3) -3% |
305/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.61 mph (33.17 km/h) |
| 25 mph (40.23 km/h) | 25.76 mph (41.46 km/h) |
| 30 mph (48.28 km/h) | 30.91 mph (49.75 km/h) |
| 35 mph (56.33 km/h) | 36.07 mph (58.04 km/h) |
| 40 mph (64.37 km/h) | 41.22 mph (66.34 km/h) |
| 45 mph (72.42 km/h) | 46.37 mph (74.63 km/h) |
| 50 mph (80.47 km/h) | 51.52 mph (82.92 km/h) |
| 55 mph (88.51 km/h) | 56.68 mph (91.21 km/h) |
| 60 mph (96.56 km/h) | 61.83 mph (99.5 km/h) |
| 65 mph (104.61 km/h) | 66.98 mph (107.8 km/h) |
| 70 mph (112.65 km/h) | 72.13 mph (116.09 km/h) |
| 75 mph (120.7 km/h) | 77.29 mph (124.38 km/h) |
| 80 mph (128.75 km/h) | 82.44 mph (132.67 km/h) |
| 85 mph (136.79 km/h) | 87.59 mph (140.96 km/h) |
| 90 mph (144.84 km/h) | 92.74 mph (149.26 km/h) |
| 95 mph (152.89 km/h) | 97.9 mph (157.55 km/h) |
| 100 mph (160.93 km/h) | 103.05 mph (165.84 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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