Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 255/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 33.06 (839.7) | 2.96 (75.3) 9.9% |
| Width inches (mm) | 10.08 (256) | 10.04 (255) | -0.04 (-1) -0.4% |
| Circum. inches (mm) | 94.54 (2401.43) | 103.86 (2638) | 9.31 (236.56) 9.9% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 7.53 (191.25) | 1.48 (37.65) 24.5% |
| Revolutions per mile (km) | 670.16 (416.42) | 610.06 (379.07) | -60.1 (-37.34) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.97 mph (35.36 km/h) |
| 25 mph (40.23 km/h) | 27.46 mph (44.2 km/h) |
| 30 mph (48.28 km/h) | 32.96 mph (53.04 km/h) |
| 35 mph (56.33 km/h) | 38.45 mph (61.88 km/h) |
| 40 mph (64.37 km/h) | 43.94 mph (70.72 km/h) |
| 45 mph (72.42 km/h) | 49.43 mph (79.55 km/h) |
| 50 mph (80.47 km/h) | 54.93 mph (88.39 km/h) |
| 55 mph (88.51 km/h) | 60.42 mph (97.23 km/h) |
| 60 mph (96.56 km/h) | 65.91 mph (106.07 km/h) |
| 65 mph (104.61 km/h) | 71.4 mph (114.91 km/h) |
| 70 mph (112.65 km/h) | 76.9 mph (123.75 km/h) |
| 75 mph (120.7 km/h) | 82.39 mph (132.59 km/h) |
| 80 mph (128.75 km/h) | 87.88 mph (141.43 km/h) |
| 85 mph (136.79 km/h) | 93.37 mph (150.27 km/h) |
| 90 mph (144.84 km/h) | 98.87 mph (159.11 km/h) |
| 95 mph (152.89 km/h) | 104.36 mph (167.95 km/h) |
| 100 mph (160.93 km/h) | 109.85 mph (176.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1804 | 1942 | 2028 | 2121 | 2187 | 2259 | 2345 | 2464 | 2583 | 2715 | 2821 | 3012 | 3224 | 3389 | 3495 | 3554 | 3772 | 4076 | 4737 |
Better Fuel Economy Factory Ratios Increased Power
