Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-19.5 | 445/45-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.97 (862.8) | 35.27 (895.8) | 1.3 (33) 3.8% |
| Width inches (mm) | 9.65 (245) | 17.52 (445) | 7.87 (200) 81.6% |
| Circum. inches (mm) | 106.72 (2710.57) | 110.8 (2814.24) | 4.08 (103.67) 3.8% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.88 (200.25) | 0.65 (16.5) 9% |
| Revolutions per mile (km) | 593.73 (368.93) | 571.86 (355.34) | -21.87 (-13.59) -3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.76 mph (33.42 km/h) |
| 25 mph (40.23 km/h) | 25.96 mph (41.77 km/h) |
| 30 mph (48.28 km/h) | 31.15 mph (50.13 km/h) |
| 35 mph (56.33 km/h) | 36.34 mph (58.48 km/h) |
| 40 mph (64.37 km/h) | 41.53 mph (66.84 km/h) |
| 45 mph (72.42 km/h) | 46.72 mph (75.19 km/h) |
| 50 mph (80.47 km/h) | 51.91 mph (83.55 km/h) |
| 55 mph (88.51 km/h) | 57.1 mph (91.9 km/h) |
| 60 mph (96.56 km/h) | 62.29 mph (100.25 km/h) |
| 65 mph (104.61 km/h) | 67.49 mph (108.61 km/h) |
| 70 mph (112.65 km/h) | 72.68 mph (116.96 km/h) |
| 75 mph (120.7 km/h) | 77.87 mph (125.32 km/h) |
| 80 mph (128.75 km/h) | 83.06 mph (133.67 km/h) |
| 85 mph (136.79 km/h) | 88.25 mph (142.03 km/h) |
| 90 mph (144.84 km/h) | 93.44 mph (150.38 km/h) |
| 95 mph (152.89 km/h) | 98.63 mph (158.74 km/h) |
| 100 mph (160.93 km/h) | 103.82 mph (167.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1455 | 1691 | 1821 | 1901 | 1988 | 2050 | 2118 | 2198 | 2310 | 2421 | 2545 | 2644 | 2824 | 3022 | 3177 | 3276 | 3332 | 3536 | 3821 | 4440 |
Better Fuel Economy Factory Ratios Increased Power
