Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.02 (838.72) | 32.99 (838) | -0.03 (-0.72) -0.1% |
| Width inches (mm) | 12.52 (318) | 10.83 (275) | -1.69 (-43) -13.5% |
| Circum. inches (mm) | 103.74 (2634.92) | 103.65 (2632.65) | -0.09 (-2.26) -0.1% |
| Sidewall Height inches (mm) | 6.51 (165.36) | 6.5 (165) | -0.01 (-0.36) -0.2% |
| Revolutions per mile (km) | 610.78 (379.52) | 611.3 (379.84) | 0.52 (0.33) 0.1% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.98 mph (32.16 km/h) |
| 25 mph (40.23 km/h) | 24.98 mph (40.2 km/h) |
| 30 mph (48.28 km/h) | 29.97 mph (48.24 km/h) |
| 35 mph (56.33 km/h) | 34.97 mph (56.28 km/h) |
| 40 mph (64.37 km/h) | 39.97 mph (64.32 km/h) |
| 45 mph (72.42 km/h) | 44.96 mph (72.36 km/h) |
| 50 mph (80.47 km/h) | 49.96 mph (80.4 km/h) |
| 55 mph (88.51 km/h) | 54.95 mph (88.44 km/h) |
| 60 mph (96.56 km/h) | 59.95 mph (96.48 km/h) |
| 65 mph (104.61 km/h) | 64.94 mph (104.52 km/h) |
| 70 mph (112.65 km/h) | 69.94 mph (112.56 km/h) |
| 75 mph (120.7 km/h) | 74.94 mph (120.6 km/h) |
| 80 mph (128.75 km/h) | 79.93 mph (128.64 km/h) |
| 85 mph (136.79 km/h) | 84.93 mph (136.68 km/h) |
| 90 mph (144.84 km/h) | 89.92 mph (144.72 km/h) |
| 95 mph (152.89 km/h) | 94.92 mph (152.76 km/h) |
| 100 mph (160.93 km/h) | 99.91 mph (160.8 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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