Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/65-18 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.56 (801.7) | 32.99 (838) | 1.43 (36.3) 4.5% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 99.16 (2518.61) | 103.65 (2632.65) | 4.49 (114.04) 4.5% |
| Sidewall Height inches (mm) | 6.78 (172.25) | 6.5 (165) | -0.29 (-7.25) -4.2% |
| Revolutions per mile (km) | 638.98 (397.04) | 611.3 (379.84) | -27.68 (-17.2) -4.3% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.91 mph (33.64 km/h) |
| 25 mph (40.23 km/h) | 26.13 mph (42.06 km/h) |
| 30 mph (48.28 km/h) | 31.36 mph (50.47 km/h) |
| 35 mph (56.33 km/h) | 36.58 mph (58.88 km/h) |
| 40 mph (64.37 km/h) | 41.81 mph (67.29 km/h) |
| 45 mph (72.42 km/h) | 47.04 mph (75.7 km/h) |
| 50 mph (80.47 km/h) | 52.26 mph (84.11 km/h) |
| 55 mph (88.51 km/h) | 57.49 mph (92.52 km/h) |
| 60 mph (96.56 km/h) | 62.72 mph (100.93 km/h) |
| 65 mph (104.61 km/h) | 67.94 mph (109.34 km/h) |
| 70 mph (112.65 km/h) | 73.17 mph (117.76 km/h) |
| 75 mph (120.7 km/h) | 78.4 mph (126.17 km/h) |
| 80 mph (128.75 km/h) | 83.62 mph (134.58 km/h) |
| 85 mph (136.79 km/h) | 88.85 mph (142.99 km/h) |
| 90 mph (144.84 km/h) | 94.08 mph (151.4 km/h) |
| 95 mph (152.89 km/h) | 99.3 mph (159.81 km/h) |
| 100 mph (160.93 km/h) | 104.53 mph (168.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1807 | 1946 | 2032 | 2125 | 2191 | 2264 | 2350 | 2469 | 2588 | 2721 | 2827 | 3019 | 3230 | 3396 | 3502 | 3561 | 3780 | 4084 | 4746 |
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