Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 32/11.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 32.03 (813.44) | 1.93 (49.04) 6.4% |
| Width inches (mm) | 10.08 (256) | 11.5 (292) | 1.42 (36) 14.1% |
| Circum. inches (mm) | 94.54 (2401.43) | 100.61 (2555.5) | 6.07 (154.06) 6.4% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 7.01 (178.12) | 0.97 (24.52) 16% |
| Revolutions per mile (km) | 670.16 (416.42) | 629.76 (391.31) | -40.4 (-25.1) -6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.28 mph (34.25 km/h) |
| 25 mph (40.23 km/h) | 26.6 mph (42.81 km/h) |
| 30 mph (48.28 km/h) | 31.92 mph (51.38 km/h) |
| 35 mph (56.33 km/h) | 37.25 mph (59.94 km/h) |
| 40 mph (64.37 km/h) | 42.57 mph (68.5 km/h) |
| 45 mph (72.42 km/h) | 47.89 mph (77.07 km/h) |
| 50 mph (80.47 km/h) | 53.21 mph (85.63 km/h) |
| 55 mph (88.51 km/h) | 58.53 mph (94.19 km/h) |
| 60 mph (96.56 km/h) | 63.85 mph (102.76 km/h) |
| 65 mph (104.61 km/h) | 69.17 mph (111.32 km/h) |
| 70 mph (112.65 km/h) | 74.49 mph (119.88 km/h) |
| 75 mph (120.7 km/h) | 79.81 mph (128.44 km/h) |
| 80 mph (128.75 km/h) | 85.13 mph (137.01 km/h) |
| 85 mph (136.79 km/h) | 90.45 mph (145.57 km/h) |
| 90 mph (144.84 km/h) | 95.77 mph (154.13 km/h) |
| 95 mph (152.89 km/h) | 101.09 mph (162.7 km/h) |
| 100 mph (160.93 km/h) | 106.42 mph (171.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1603 | 1862 | 2005 | 2094 | 2189 | 2257 | 2332 | 2421 | 2544 | 2666 | 2803 | 2912 | 3110 | 3328 | 3498 | 3608 | 3669 | 3894 | 4208 | 4890 |
Better Fuel Economy Factory Ratios Increased Power
