Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-15 | 285/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.03 (838.92) | 30.71 (780) | -2.32 (-58.92) -7% |
| Width inches (mm) | 12.52 (318) | 11.22 (285) | -1.3 (-33) -10.4% |
| Circum. inches (mm) | 103.76 (2635.54) | 96.47 (2450.44) | -7.29 (-185.1) -7% |
| Sidewall Height inches (mm) | 9.01 (228.96) | 7.85 (199.5) | -1.16 (-29.46) -12.9% |
| Revolutions per mile (km) | 610.63 (379.43) | 656.76 (408.09) | 46.13 (28.66) 7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.93 km/h) |
| 25 mph (40.23 km/h) | 23.24 mph (37.41 km/h) |
| 30 mph (48.28 km/h) | 27.89 mph (44.89 km/h) |
| 35 mph (56.33 km/h) | 32.54 mph (52.37 km/h) |
| 40 mph (64.37 km/h) | 37.19 mph (59.85 km/h) |
| 45 mph (72.42 km/h) | 41.84 mph (67.33 km/h) |
| 50 mph (80.47 km/h) | 46.49 mph (74.82 km/h) |
| 55 mph (88.51 km/h) | 51.14 mph (82.3 km/h) |
| 60 mph (96.56 km/h) | 55.79 mph (89.78 km/h) |
| 65 mph (104.61 km/h) | 60.43 mph (97.26 km/h) |
| 70 mph (112.65 km/h) | 65.08 mph (104.74 km/h) |
| 75 mph (120.7 km/h) | 69.73 mph (112.22 km/h) |
| 80 mph (128.75 km/h) | 74.38 mph (119.71 km/h) |
| 85 mph (136.79 km/h) | 79.03 mph (127.19 km/h) |
| 90 mph (144.84 km/h) | 83.68 mph (134.67 km/h) |
| 95 mph (152.89 km/h) | 88.33 mph (142.15 km/h) |
| 100 mph (160.93 km/h) | 92.98 mph (149.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1671 | 1942 | 2091 | 2183 | 2283 | 2354 | 2432 | 2525 | 2653 | 2781 | 2923 | 3037 | 3243 | 3471 | 3648 | 3762 | 3826 | 4061 | 4388 | 5099 |
Better Fuel Economy Factory Ratios Increased Power
