Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-16 | 33/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.71 (805.4) | 33.03 (838.88) | 1.32 (33.48) 4.2% |
| Width inches (mm) | 11.22 (285) | 12.52 (318) | 1.3 (33) 11.6% |
| Circum. inches (mm) | 99.62 (2530.24) | 103.76 (2635.42) | 4.14 (105.18) 4.2% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 8.51 (216.24) | 0.66 (16.74) 8.4% |
| Revolutions per mile (km) | 636.04 (395.22) | 610.66 (379.45) | -25.38 (-15.77) -4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.83 mph (33.52 km/h) |
| 25 mph (40.23 km/h) | 26.04 mph (41.91 km/h) |
| 30 mph (48.28 km/h) | 31.25 mph (50.29 km/h) |
| 35 mph (56.33 km/h) | 36.45 mph (58.67 km/h) |
| 40 mph (64.37 km/h) | 41.66 mph (67.05 km/h) |
| 45 mph (72.42 km/h) | 46.87 mph (75.43 km/h) |
| 50 mph (80.47 km/h) | 52.08 mph (83.81 km/h) |
| 55 mph (88.51 km/h) | 57.29 mph (92.19 km/h) |
| 60 mph (96.56 km/h) | 62.49 mph (100.57 km/h) |
| 65 mph (104.61 km/h) | 67.7 mph (108.96 km/h) |
| 70 mph (112.65 km/h) | 72.91 mph (117.34 km/h) |
| 75 mph (120.7 km/h) | 78.12 mph (125.72 km/h) |
| 80 mph (128.75 km/h) | 83.33 mph (134.1 km/h) |
| 85 mph (136.79 km/h) | 88.53 mph (142.48 km/h) |
| 90 mph (144.84 km/h) | 93.74 mph (150.86 km/h) |
| 95 mph (152.89 km/h) | 98.95 mph (159.24 km/h) |
| 100 mph (160.93 km/h) | 104.16 mph (167.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3015 | 3227 | 3392 | 3498 | 3558 | 3776 | 4080 | 4741 |
Better Fuel Economy Factory Ratios Increased Power
