Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 305/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 32.41 (823.2) | 1.89 (48) 6.2% |
| Width inches (mm) | 10.43 (265) | 12.01 (305) | 1.57 (40) 15.1% |
| Circum. inches (mm) | 95.88 (2435.36) | 101.82 (2586.16) | 5.94 (150.8) 6.2% |
| Sidewall Height inches (mm) | 6.26 (159) | 7.2 (183) | 0.94 (24) 15.1% |
| Revolutions per mile (km) | 660.82 (410.62) | 622.29 (386.67) | -38.53 (-23.94) -5.8% |
305/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.24 mph (34.18 km/h) |
| 25 mph (40.23 km/h) | 26.55 mph (42.72 km/h) |
| 30 mph (48.28 km/h) | 31.86 mph (51.27 km/h) |
| 35 mph (56.33 km/h) | 37.17 mph (59.81 km/h) |
| 40 mph (64.37 km/h) | 42.48 mph (68.36 km/h) |
| 45 mph (72.42 km/h) | 47.79 mph (76.9 km/h) |
| 50 mph (80.47 km/h) | 53.1 mph (85.45 km/h) |
| 55 mph (88.51 km/h) | 58.41 mph (93.99 km/h) |
| 60 mph (96.56 km/h) | 63.72 mph (102.54 km/h) |
| 65 mph (104.61 km/h) | 69.02 mph (111.08 km/h) |
| 70 mph (112.65 km/h) | 74.33 mph (119.63 km/h) |
| 75 mph (120.7 km/h) | 79.64 mph (128.17 km/h) |
| 80 mph (128.75 km/h) | 84.95 mph (136.72 km/h) |
| 85 mph (136.79 km/h) | 90.26 mph (145.26 km/h) |
| 90 mph (144.84 km/h) | 95.57 mph (153.81 km/h) |
| 95 mph (152.89 km/h) | 100.88 mph (162.35 km/h) |
| 100 mph (160.93 km/h) | 106.19 mph (170.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1584 | 1840 | 1981 | 2069 | 2163 | 2231 | 2305 | 2392 | 2514 | 2635 | 2770 | 2877 | 3073 | 3289 | 3457 | 3565 | 3625 | 3848 | 4158 | 4832 |
Better Fuel Economy Factory Ratios Increased Power
