Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/50-19 | 275/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.83 (757.6) | 29.74 (755.5) | -0.08 (-2.1) -0.3% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 93.7 (2380.07) | 93.44 (2373.47) | -0.26 (-6.6) -0.3% |
| Sidewall Height inches (mm) | 5.41 (137.5) | 4.87 (123.75) | -0.54 (-13.75) -10% |
| Revolutions per mile (km) | 676.17 (420.15) | 678.05 (421.32) | 1.88 (1.17) 0.3% |
275/45-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.1 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.12 km/h) |
| 30 mph (48.28 km/h) | 29.92 mph (48.15 km/h) |
| 35 mph (56.33 km/h) | 34.9 mph (56.17 km/h) |
| 40 mph (64.37 km/h) | 39.89 mph (64.2 km/h) |
| 45 mph (72.42 km/h) | 44.88 mph (72.22 km/h) |
| 50 mph (80.47 km/h) | 49.86 mph (80.24 km/h) |
| 55 mph (88.51 km/h) | 54.85 mph (88.27 km/h) |
| 60 mph (96.56 km/h) | 59.83 mph (96.29 km/h) |
| 65 mph (104.61 km/h) | 64.82 mph (104.32 km/h) |
| 70 mph (112.65 km/h) | 69.81 mph (112.34 km/h) |
| 75 mph (120.7 km/h) | 74.79 mph (120.37 km/h) |
| 80 mph (128.75 km/h) | 79.78 mph (128.39 km/h) |
| 85 mph (136.79 km/h) | 84.76 mph (136.42 km/h) |
| 90 mph (144.84 km/h) | 89.75 mph (144.44 km/h) |
| 95 mph (152.89 km/h) | 94.74 mph (152.46 km/h) |
| 100 mph (160.93 km/h) | 99.72 mph (160.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1726 | 2005 | 2159 | 2254 | 2357 | 2430 | 2511 | 2607 | 2739 | 2871 | 3018 | 3135 | 3348 | 3583 | 3767 | 3884 | 3950 | 4193 | 4530 | 5265 |
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