Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-20 | 275/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.57 (802) | 30.83 (783) | -0.75 (-19) -2.4% |
| Width inches (mm) | 9.65 (245) | 10.83 (275) | 1.18 (30) 12.2% |
| Circum. inches (mm) | 99.2 (2519.56) | 96.85 (2459.87) | -2.35 (-59.69) -2.4% |
| Sidewall Height inches (mm) | 5.79 (147) | 5.41 (137.5) | -0.37 (-9.5) -6.5% |
| Revolutions per mile (km) | 638.74 (396.89) | 654.24 (406.53) | 15.5 (9.63) 2.4% |
275/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.42 km/h) |
| 25 mph (40.23 km/h) | 24.41 mph (39.28 km/h) |
| 30 mph (48.28 km/h) | 29.29 mph (47.14 km/h) |
| 35 mph (56.33 km/h) | 34.17 mph (54.99 km/h) |
| 40 mph (64.37 km/h) | 39.05 mph (62.85 km/h) |
| 45 mph (72.42 km/h) | 43.93 mph (70.7 km/h) |
| 50 mph (80.47 km/h) | 48.82 mph (78.56 km/h) |
| 55 mph (88.51 km/h) | 53.7 mph (86.42 km/h) |
| 60 mph (96.56 km/h) | 58.58 mph (94.27 km/h) |
| 65 mph (104.61 km/h) | 63.46 mph (102.13 km/h) |
| 70 mph (112.65 km/h) | 68.34 mph (109.99 km/h) |
| 75 mph (120.7 km/h) | 73.22 mph (117.84 km/h) |
| 80 mph (128.75 km/h) | 78.1 mph (125.7 km/h) |
| 85 mph (136.79 km/h) | 82.99 mph (133.55 km/h) |
| 90 mph (144.84 km/h) | 87.87 mph (141.41 km/h) |
| 95 mph (152.89 km/h) | 92.75 mph (149.27 km/h) |
| 100 mph (160.93 km/h) | 97.63 mph (157.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1665 | 1934 | 2083 | 2175 | 2274 | 2345 | 2423 | 2515 | 2643 | 2770 | 2912 | 3025 | 3231 | 3457 | 3634 | 3748 | 3812 | 4045 | 4371 | 5080 |
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