Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-19.5 | 285/80-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33 (838.3) | 37.45 (951.3) | 4.45 (113) 13.5% |
| Width inches (mm) | 9.65 (245) | 11.22 (285) | 1.57 (40) 16.3% |
| Circum. inches (mm) | 103.68 (2633.6) | 117.66 (2988.6) | 13.98 (355) 13.5% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 8.98 (228) | 2.22 (56.5) 32.9% |
| Revolutions per mile (km) | 611.08 (379.71) | 538.49 (334.6) | -72.59 (-45.1) -11.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.7 mph (36.53 km/h) |
| 25 mph (40.23 km/h) | 28.37 mph (45.66 km/h) |
| 30 mph (48.28 km/h) | 34.04 mph (54.79 km/h) |
| 35 mph (56.33 km/h) | 39.72 mph (63.92 km/h) |
| 40 mph (64.37 km/h) | 45.39 mph (73.05 km/h) |
| 45 mph (72.42 km/h) | 51.07 mph (82.18 km/h) |
| 50 mph (80.47 km/h) | 56.74 mph (91.31 km/h) |
| 55 mph (88.51 km/h) | 62.41 mph (100.45 km/h) |
| 60 mph (96.56 km/h) | 68.09 mph (109.58 km/h) |
| 65 mph (104.61 km/h) | 73.76 mph (118.71 km/h) |
| 70 mph (112.65 km/h) | 79.44 mph (127.84 km/h) |
| 75 mph (120.7 km/h) | 85.11 mph (136.97 km/h) |
| 80 mph (128.75 km/h) | 90.78 mph (146.1 km/h) |
| 85 mph (136.79 km/h) | 96.46 mph (155.23 km/h) |
| 90 mph (144.84 km/h) | 102.13 mph (164.37 km/h) |
| 95 mph (152.89 km/h) | 107.81 mph (173.5 km/h) |
| 100 mph (160.93 km/h) | 113.48 mph (182.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1370 | 1592 | 1714 | 1790 | 1872 | 1930 | 1994 | 2070 | 2175 | 2280 | 2397 | 2490 | 2659 | 2846 | 2991 | 3085 | 3137 | 3330 | 3598 | 4181 |
Better Fuel Economy Factory Ratios Increased Power
