Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-19 | 245/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.74 (730.1) | 29.65 (753) | 0.9 (22.9) 3.1% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 90.3 (2293.68) | 93.13 (2365.62) | 2.83 (71.94) 3.1% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.82 (122.5) | -0.05 (-1.25) -1% |
| Revolutions per mile (km) | 701.64 (435.98) | 680.31 (422.72) | -21.34 (-13.26) -3% |
245/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.78 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.94 mph (49.79 km/h) |
| 35 mph (56.33 km/h) | 36.1 mph (58.09 km/h) |
| 40 mph (64.37 km/h) | 41.25 mph (66.39 km/h) |
| 45 mph (72.42 km/h) | 46.41 mph (74.69 km/h) |
| 50 mph (80.47 km/h) | 51.57 mph (82.99 km/h) |
| 55 mph (88.51 km/h) | 56.73 mph (91.29 km/h) |
| 60 mph (96.56 km/h) | 61.88 mph (99.59 km/h) |
| 65 mph (104.61 km/h) | 67.04 mph (107.89 km/h) |
| 70 mph (112.65 km/h) | 72.2 mph (116.19 km/h) |
| 75 mph (120.7 km/h) | 77.35 mph (124.49 km/h) |
| 80 mph (128.75 km/h) | 82.51 mph (132.79 km/h) |
| 85 mph (136.79 km/h) | 87.67 mph (141.09 km/h) |
| 90 mph (144.84 km/h) | 92.82 mph (149.38 km/h) |
| 95 mph (152.89 km/h) | 97.98 mph (157.68 km/h) |
| 100 mph (160.93 km/h) | 103.14 mph (165.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1731 | 2011 | 2166 | 2262 | 2365 | 2438 | 2520 | 2615 | 2748 | 2881 | 3028 | 3146 | 3359 | 3595 | 3779 | 3897 | 3963 | 4207 | 4545 | 5282 |
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