Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/60-18 | 32/10.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.05 (763.2) | 32.09 (814.98) | 2.04 (51.78) 6.8% |
| Width inches (mm) | 10.04 (255) | 10.51 (267) | 0.47 (12) 4.7% |
| Circum. inches (mm) | 94.4 (2397.66) | 100.8 (2560.34) | 6.4 (162.67) 6.8% |
| Sidewall Height inches (mm) | 6.02 (153) | 7.04 (178.89) | 1.02 (25.89) 16.9% |
| Revolutions per mile (km) | 671.21 (417.07) | 628.57 (390.57) | -42.65 (-26.5) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.36 mph (34.37 km/h) |
| 25 mph (40.23 km/h) | 26.7 mph (42.96 km/h) |
| 30 mph (48.28 km/h) | 32.04 mph (51.56 km/h) |
| 35 mph (56.33 km/h) | 37.37 mph (60.15 km/h) |
| 40 mph (64.37 km/h) | 42.71 mph (68.74 km/h) |
| 45 mph (72.42 km/h) | 48.05 mph (77.33 km/h) |
| 50 mph (80.47 km/h) | 53.39 mph (85.93 km/h) |
| 55 mph (88.51 km/h) | 58.73 mph (94.52 km/h) |
| 60 mph (96.56 km/h) | 64.07 mph (103.11 km/h) |
| 65 mph (104.61 km/h) | 69.41 mph (111.7 km/h) |
| 70 mph (112.65 km/h) | 74.75 mph (120.3 km/h) |
| 75 mph (120.7 km/h) | 80.09 mph (128.89 km/h) |
| 80 mph (128.75 km/h) | 85.43 mph (137.48 km/h) |
| 85 mph (136.79 km/h) | 90.77 mph (146.08 km/h) |
| 90 mph (144.84 km/h) | 96.11 mph (154.67 km/h) |
| 95 mph (152.89 km/h) | 101.45 mph (163.26 km/h) |
| 100 mph (160.93 km/h) | 106.78 mph (171.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1600 | 1858 | 2001 | 2090 | 2185 | 2253 | 2328 | 2416 | 2539 | 2661 | 2798 | 2906 | 3104 | 3322 | 3492 | 3601 | 3662 | 3887 | 4200 | 4880 |
Better Fuel Economy Factory Ratios Increased Power
