Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-20 | 255/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.57 (802) | 32.05 (814) | 0.47 (12) 1.5% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 99.2 (2519.56) | 100.68 (2557.26) | 1.48 (37.7) 1.5% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.02 (153) | 0.24 (6) 4.1% |
| Revolutions per mile (km) | 638.74 (396.89) | 629.32 (391.04) | -9.42 (-5.85) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.67 km/h) |
| 25 mph (40.23 km/h) | 25.37 mph (40.84 km/h) |
| 30 mph (48.28 km/h) | 30.45 mph (49 km/h) |
| 35 mph (56.33 km/h) | 35.52 mph (57.17 km/h) |
| 40 mph (64.37 km/h) | 40.6 mph (65.34 km/h) |
| 45 mph (72.42 km/h) | 45.67 mph (73.5 km/h) |
| 50 mph (80.47 km/h) | 50.75 mph (81.67 km/h) |
| 55 mph (88.51 km/h) | 55.82 mph (89.84 km/h) |
| 60 mph (96.56 km/h) | 60.9 mph (98.01 km/h) |
| 65 mph (104.61 km/h) | 65.97 mph (106.17 km/h) |
| 70 mph (112.65 km/h) | 71.05 mph (114.34 km/h) |
| 75 mph (120.7 km/h) | 76.12 mph (122.51 km/h) |
| 80 mph (128.75 km/h) | 81.2 mph (130.67 km/h) |
| 85 mph (136.79 km/h) | 86.27 mph (138.84 km/h) |
| 90 mph (144.84 km/h) | 91.35 mph (147.01 km/h) |
| 95 mph (152.89 km/h) | 96.42 mph (155.18 km/h) |
| 100 mph (160.93 km/h) | 101.5 mph (163.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1602 | 1860 | 2004 | 2092 | 2188 | 2256 | 2331 | 2419 | 2542 | 2665 | 2801 | 2910 | 3108 | 3326 | 3496 | 3605 | 3666 | 3891 | 4205 | 4886 |
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