Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/65-15 | 245/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.49 (647.5) | 27.68 (703.1) | 2.19 (55.6) 8.6% |
| Width inches (mm) | 8.07 (205) | 9.65 (245) | 1.57 (40) 19.5% |
| Circum. inches (mm) | 80.09 (2034.18) | 86.96 (2208.85) | 6.88 (174.67) 8.6% |
| Sidewall Height inches (mm) | 5.25 (133.25) | 4.34 (110.25) | -0.91 (-23) -17.3% |
| Revolutions per mile (km) | 791.15 (491.6) | 728.59 (452.72) | -62.56 (-38.87) -7.9% |
245/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.72 mph (34.95 km/h) |
| 25 mph (40.23 km/h) | 27.15 mph (43.69 km/h) |
| 30 mph (48.28 km/h) | 32.58 mph (52.43 km/h) |
| 35 mph (56.33 km/h) | 38.01 mph (61.16 km/h) |
| 40 mph (64.37 km/h) | 43.43 mph (69.9 km/h) |
| 45 mph (72.42 km/h) | 48.86 mph (78.64 km/h) |
| 50 mph (80.47 km/h) | 54.29 mph (87.38 km/h) |
| 55 mph (88.51 km/h) | 59.72 mph (96.11 km/h) |
| 60 mph (96.56 km/h) | 65.15 mph (104.85 km/h) |
| 65 mph (104.61 km/h) | 70.58 mph (113.59 km/h) |
| 70 mph (112.65 km/h) | 76.01 mph (122.33 km/h) |
| 75 mph (120.7 km/h) | 81.44 mph (131.07 km/h) |
| 80 mph (128.75 km/h) | 86.87 mph (139.8 km/h) |
| 85 mph (136.79 km/h) | 92.3 mph (148.54 km/h) |
| 90 mph (144.84 km/h) | 97.73 mph (157.28 km/h) |
| 95 mph (152.89 km/h) | 103.16 mph (166.02 km/h) |
| 100 mph (160.93 km/h) | 108.59 mph (174.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1854 | 2154 | 2320 | 2422 | 2533 | 2612 | 2698 | 2801 | 2943 | 3085 | 3243 | 3369 | 3598 | 3850 | 4047 | 4174 | 4245 | 4505 | 4868 | 5657 |
Better Fuel Economy Factory Ratios Increased Power
