Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/55-20 | 275/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.48 (799.5) | 34.07 (865.5) | 2.6 (66) 8.3% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 98.89 (2511.7) | 107.05 (2719.05) | 8.16 (207.35) 8.3% |
| Sidewall Height inches (mm) | 5.74 (145.75) | 7.04 (178.75) | 1.3 (33) 22.6% |
| Revolutions per mile (km) | 640.74 (398.14) | 591.88 (367.78) | -48.86 (-30.36) -7.6% |
275/65-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.65 mph (34.84 km/h) |
| 25 mph (40.23 km/h) | 27.06 mph (43.56 km/h) |
| 30 mph (48.28 km/h) | 32.48 mph (52.27 km/h) |
| 35 mph (56.33 km/h) | 37.89 mph (60.98 km/h) |
| 40 mph (64.37 km/h) | 43.3 mph (69.69 km/h) |
| 45 mph (72.42 km/h) | 48.71 mph (78.4 km/h) |
| 50 mph (80.47 km/h) | 54.13 mph (87.11 km/h) |
| 55 mph (88.51 km/h) | 59.54 mph (95.82 km/h) |
| 60 mph (96.56 km/h) | 64.95 mph (104.53 km/h) |
| 65 mph (104.61 km/h) | 70.37 mph (113.24 km/h) |
| 70 mph (112.65 km/h) | 75.78 mph (121.95 km/h) |
| 75 mph (120.7 km/h) | 81.19 mph (130.67 km/h) |
| 80 mph (128.75 km/h) | 86.6 mph (139.38 km/h) |
| 85 mph (136.79 km/h) | 92.02 mph (148.09 km/h) |
| 90 mph (144.84 km/h) | 97.43 mph (156.8 km/h) |
| 95 mph (152.89 km/h) | 102.84 mph (165.51 km/h) |
| 100 mph (160.93 km/h) | 108.26 mph (174.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1506 | 1750 | 1884 | 1968 | 2057 | 2122 | 2192 | 2275 | 2391 | 2506 | 2634 | 2737 | 2923 | 3128 | 3288 | 3391 | 3448 | 3660 | 3955 | 4596 |
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