Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/75-15 | 32/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.83 (808.5) | 32.03 (813.54) | 0.2 (5.04) 0.6% |
| Width inches (mm) | 11.22 (285) | 10.51 (267) | -0.71 (-18) -6.3% |
| Circum. inches (mm) | 100 (2539.98) | 100.62 (2555.81) | 0.62 (15.83) 0.6% |
| Sidewall Height inches (mm) | 8.42 (213.75) | 8.51 (216.27) | 0.1 (2.52) 1.2% |
| Revolutions per mile (km) | 633.61 (393.7) | 629.68 (391.26) | -3.93 (-2.44) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.12 mph (32.39 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.48 km/h) |
| 30 mph (48.28 km/h) | 30.19 mph (48.58 km/h) |
| 35 mph (56.33 km/h) | 35.22 mph (56.68 km/h) |
| 40 mph (64.37 km/h) | 40.25 mph (64.78 km/h) |
| 45 mph (72.42 km/h) | 45.28 mph (72.87 km/h) |
| 50 mph (80.47 km/h) | 50.31 mph (80.97 km/h) |
| 55 mph (88.51 km/h) | 55.34 mph (89.07 km/h) |
| 60 mph (96.56 km/h) | 60.37 mph (97.16 km/h) |
| 65 mph (104.61 km/h) | 65.41 mph (105.26 km/h) |
| 70 mph (112.65 km/h) | 70.44 mph (113.36 km/h) |
| 75 mph (120.7 km/h) | 75.47 mph (121.45 km/h) |
| 80 mph (128.75 km/h) | 80.5 mph (129.55 km/h) |
| 85 mph (136.79 km/h) | 85.53 mph (137.65 km/h) |
| 90 mph (144.84 km/h) | 90.56 mph (145.74 km/h) |
| 95 mph (152.89 km/h) | 95.59 mph (153.84 km/h) |
| 100 mph (160.93 km/h) | 100.62 mph (161.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1602 | 1862 | 2005 | 2093 | 2189 | 2257 | 2332 | 2421 | 2543 | 2666 | 2803 | 2912 | 3109 | 3328 | 3498 | 3607 | 3669 | 3894 | 4207 | 4889 |
Better Fuel Economy Factory Ratios Increased Power
