Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 35/12.5-18 | 305/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.03 (889.68) | 34.81 (884.2) | -0.22 (-5.48) -0.6% |
| Width inches (mm) | 12.52 (318) | 12.01 (305) | -0.51 (-13) -4.1% |
| Circum. inches (mm) | 110.04 (2795.01) | 109.36 (2777.8) | -0.68 (-17.22) -0.6% |
| Sidewall Height inches (mm) | 8.51 (216.24) | 8.41 (213.5) | -0.11 (-2.74) -1.3% |
| Revolutions per mile (km) | 575.79 (357.78) | 579.36 (360) | 3.57 (2.22) 0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.88 mph (31.99 km/h) |
| 25 mph (40.23 km/h) | 24.85 mph (39.99 km/h) |
| 30 mph (48.28 km/h) | 29.82 mph (47.98 km/h) |
| 35 mph (56.33 km/h) | 34.78 mph (55.98 km/h) |
| 40 mph (64.37 km/h) | 39.75 mph (63.98 km/h) |
| 45 mph (72.42 km/h) | 44.72 mph (71.97 km/h) |
| 50 mph (80.47 km/h) | 49.69 mph (79.97 km/h) |
| 55 mph (88.51 km/h) | 54.66 mph (87.97 km/h) |
| 60 mph (96.56 km/h) | 59.63 mph (95.97 km/h) |
| 65 mph (104.61 km/h) | 64.6 mph (103.96 km/h) |
| 70 mph (112.65 km/h) | 69.57 mph (111.96 km/h) |
| 75 mph (120.7 km/h) | 74.54 mph (119.96 km/h) |
| 80 mph (128.75 km/h) | 79.51 mph (127.95 km/h) |
| 85 mph (136.79 km/h) | 84.48 mph (135.95 km/h) |
| 90 mph (144.84 km/h) | 89.45 mph (143.95 km/h) |
| 95 mph (152.89 km/h) | 94.41 mph (151.95 km/h) |
| 100 mph (160.93 km/h) | 99.38 mph (159.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1474 | 1713 | 1845 | 1926 | 2014 | 2077 | 2146 | 2227 | 2340 | 2453 | 2579 | 2679 | 2861 | 3062 | 3218 | 3319 | 3375 | 3582 | 3871 | 4498 |
Better Fuel Economy Factory Ratios Increased Power
