Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-19.5 | 445/50-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.97 (862.8) | 37.02 (940.3) | 3.05 (77.5) 9% |
| Width inches (mm) | 9.65 (245) | 17.52 (445) | 7.87 (200) 81.6% |
| Circum. inches (mm) | 106.72 (2710.57) | 116.3 (2954.04) | 9.59 (243.47) 9% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.76 (222.5) | 1.53 (38.75) 21.1% |
| Revolutions per mile (km) | 593.73 (368.93) | 544.79 (338.52) | -48.94 (-30.41) -8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.8 mph (35.08 km/h) |
| 25 mph (40.23 km/h) | 27.25 mph (43.85 km/h) |
| 30 mph (48.28 km/h) | 32.69 mph (52.62 km/h) |
| 35 mph (56.33 km/h) | 38.14 mph (61.39 km/h) |
| 40 mph (64.37 km/h) | 43.59 mph (70.16 km/h) |
| 45 mph (72.42 km/h) | 49.04 mph (78.93 km/h) |
| 50 mph (80.47 km/h) | 54.49 mph (87.7 km/h) |
| 55 mph (88.51 km/h) | 59.94 mph (96.46 km/h) |
| 60 mph (96.56 km/h) | 65.39 mph (105.23 km/h) |
| 65 mph (104.61 km/h) | 70.84 mph (114 km/h) |
| 70 mph (112.65 km/h) | 76.29 mph (122.77 km/h) |
| 75 mph (120.7 km/h) | 81.74 mph (131.54 km/h) |
| 80 mph (128.75 km/h) | 87.19 mph (140.31 km/h) |
| 85 mph (136.79 km/h) | 92.64 mph (149.08 km/h) |
| 90 mph (144.84 km/h) | 98.08 mph (157.85 km/h) |
| 95 mph (152.89 km/h) | 103.53 mph (166.62 km/h) |
| 100 mph (160.93 km/h) | 108.98 mph (175.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1386 | 1611 | 1734 | 1811 | 1894 | 1953 | 2018 | 2094 | 2201 | 2307 | 2425 | 2519 | 2690 | 2879 | 3026 | 3121 | 3174 | 3369 | 3640 | 4230 |
Better Fuel Economy Factory Ratios Increased Power
