Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 33/10.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 32.93 (836.34) | 2.83 (71.94) 9.4% |
| Width inches (mm) | 10.08 (256) | 10.51 (267) | 0.43 (11) 4.3% |
| Circum. inches (mm) | 94.54 (2401.43) | 103.44 (2627.44) | 8.9 (226.01) 9.4% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 7.46 (189.57) | 1.42 (35.97) 23.4% |
| Revolutions per mile (km) | 670.16 (416.42) | 612.51 (380.6) | -57.65 (-35.82) -8.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.88 mph (35.22 km/h) |
| 25 mph (40.23 km/h) | 27.35 mph (44.02 km/h) |
| 30 mph (48.28 km/h) | 32.82 mph (52.82 km/h) |
| 35 mph (56.33 km/h) | 38.29 mph (61.63 km/h) |
| 40 mph (64.37 km/h) | 43.76 mph (70.43 km/h) |
| 45 mph (72.42 km/h) | 49.24 mph (79.24 km/h) |
| 50 mph (80.47 km/h) | 54.71 mph (88.04 km/h) |
| 55 mph (88.51 km/h) | 60.18 mph (96.84 km/h) |
| 60 mph (96.56 km/h) | 65.65 mph (105.65 km/h) |
| 65 mph (104.61 km/h) | 71.12 mph (114.45 km/h) |
| 70 mph (112.65 km/h) | 76.59 mph (123.26 km/h) |
| 75 mph (120.7 km/h) | 82.06 mph (132.06 km/h) |
| 80 mph (128.75 km/h) | 87.53 mph (140.86 km/h) |
| 85 mph (136.79 km/h) | 93 mph (149.67 km/h) |
| 90 mph (144.84 km/h) | 98.47 mph (158.47 km/h) |
| 95 mph (152.89 km/h) | 103.94 mph (167.28 km/h) |
| 100 mph (160.93 km/h) | 109.41 mph (176.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1559 | 1811 | 1950 | 2036 | 2129 | 2195 | 2268 | 2355 | 2474 | 2593 | 2726 | 2832 | 3025 | 3237 | 3403 | 3509 | 3569 | 3787 | 4092 | 4756 |
Better Fuel Economy Factory Ratios Increased Power
