Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/50-20 | 245/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.65 (753) | 27.68 (703.1) | -1.96 (-49.9) -6.6% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 93.13 (2365.62) | 86.96 (2208.85) | -6.17 (-156.77) -6.6% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 4.34 (110.25) | -0.48 (-12.25) -10% |
| Revolutions per mile (km) | 680.31 (422.72) | 728.59 (452.72) | 48.28 (30) 7.1% |
245/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.67 mph (30.05 km/h) |
| 25 mph (40.23 km/h) | 23.34 mph (37.57 km/h) |
| 30 mph (48.28 km/h) | 28.01 mph (45.08 km/h) |
| 35 mph (56.33 km/h) | 32.68 mph (52.59 km/h) |
| 40 mph (64.37 km/h) | 37.35 mph (60.11 km/h) |
| 45 mph (72.42 km/h) | 42.02 mph (67.62 km/h) |
| 50 mph (80.47 km/h) | 46.69 mph (75.13 km/h) |
| 55 mph (88.51 km/h) | 51.36 mph (82.65 km/h) |
| 60 mph (96.56 km/h) | 56.02 mph (90.16 km/h) |
| 65 mph (104.61 km/h) | 60.69 mph (97.68 km/h) |
| 70 mph (112.65 km/h) | 65.36 mph (105.19 km/h) |
| 75 mph (120.7 km/h) | 70.03 mph (112.7 km/h) |
| 80 mph (128.75 km/h) | 74.7 mph (120.22 km/h) |
| 85 mph (136.79 km/h) | 79.37 mph (127.73 km/h) |
| 90 mph (144.84 km/h) | 84.04 mph (135.24 km/h) |
| 95 mph (152.89 km/h) | 88.7 mph (142.76 km/h) |
| 100 mph (160.93 km/h) | 93.37 mph (150.27 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 |
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