Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16 | 305/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.47 (773.9) | 32.81 (833.4) | 2.34 (59.5) 7.7% |
| Width inches (mm) | 9.65 (245) | 12.01 (305) | 2.36 (60) 24.5% |
| Circum. inches (mm) | 95.72 (2431.28) | 103.08 (2618.2) | 7.36 (186.92) 7.7% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.41 (213.5) | 1.17 (29.75) 16.2% |
| Revolutions per mile (km) | 661.93 (411.31) | 614.67 (381.94) | -47.26 (-29.36) -7.1% |
305/70-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.54 mph (34.66 km/h) |
| 25 mph (40.23 km/h) | 26.92 mph (43.33 km/h) |
| 30 mph (48.28 km/h) | 32.31 mph (51.99 km/h) |
| 35 mph (56.33 km/h) | 37.69 mph (60.66 km/h) |
| 40 mph (64.37 km/h) | 43.08 mph (69.32 km/h) |
| 45 mph (72.42 km/h) | 48.46 mph (77.99 km/h) |
| 50 mph (80.47 km/h) | 53.84 mph (86.65 km/h) |
| 55 mph (88.51 km/h) | 59.23 mph (95.32 km/h) |
| 60 mph (96.56 km/h) | 64.61 mph (103.98 km/h) |
| 65 mph (104.61 km/h) | 70 mph (112.65 km/h) |
| 70 mph (112.65 km/h) | 75.38 mph (121.32 km/h) |
| 75 mph (120.7 km/h) | 80.77 mph (129.98 km/h) |
| 80 mph (128.75 km/h) | 86.15 mph (138.65 km/h) |
| 85 mph (136.79 km/h) | 91.54 mph (147.31 km/h) |
| 90 mph (144.84 km/h) | 96.92 mph (155.98 km/h) |
| 95 mph (152.89 km/h) | 102.3 mph (164.64 km/h) |
| 100 mph (160.93 km/h) | 107.69 mph (173.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1564 | 1817 | 1957 | 2043 | 2137 | 2203 | 2276 | 2363 | 2483 | 2603 | 2736 | 2842 | 3035 | 3248 | 3415 | 3521 | 3581 | 3801 | 4107 | 4773 |
Better Fuel Economy Factory Ratios Increased Power
