Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/50-20 | 275/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.43 (773) | 29.74 (755.5) | -0.69 (-17.5) -2.3% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 95.61 (2428.45) | 93.44 (2373.47) | -2.16 (-54.98) -2.3% |
| Sidewall Height inches (mm) | 5.22 (132.5) | 4.87 (123.75) | -0.34 (-8.75) -6.6% |
| Revolutions per mile (km) | 662.7 (411.78) | 678.05 (421.32) | 15.35 (9.54) 2.3% |
275/45-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.55 mph (31.46 km/h) |
| 25 mph (40.23 km/h) | 24.43 mph (39.32 km/h) |
| 30 mph (48.28 km/h) | 29.32 mph (47.19 km/h) |
| 35 mph (56.33 km/h) | 34.21 mph (55.05 km/h) |
| 40 mph (64.37 km/h) | 39.09 mph (62.92 km/h) |
| 45 mph (72.42 km/h) | 43.98 mph (70.78 km/h) |
| 50 mph (80.47 km/h) | 48.87 mph (78.65 km/h) |
| 55 mph (88.51 km/h) | 53.75 mph (86.51 km/h) |
| 60 mph (96.56 km/h) | 58.64 mph (94.37 km/h) |
| 65 mph (104.61 km/h) | 63.53 mph (102.24 km/h) |
| 70 mph (112.65 km/h) | 68.42 mph (110.1 km/h) |
| 75 mph (120.7 km/h) | 73.3 mph (117.97 km/h) |
| 80 mph (128.75 km/h) | 78.19 mph (125.83 km/h) |
| 85 mph (136.79 km/h) | 83.08 mph (133.7 km/h) |
| 90 mph (144.84 km/h) | 87.96 mph (141.56 km/h) |
| 95 mph (152.89 km/h) | 92.85 mph (149.43 km/h) |
| 100 mph (160.93 km/h) | 97.74 mph (157.29 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 |
Better Fuel Economy Factory Ratios Increased Power
