Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-20 | 255/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.57 (802) | 35.06 (890.5) | 3.48 (88.5) 11% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 99.2 (2519.56) | 110.14 (2797.59) | 10.95 (278.03) 11% |
| Sidewall Height inches (mm) | 5.79 (147) | 7.53 (191.25) | 1.74 (44.25) 30.1% |
| Revolutions per mile (km) | 638.74 (396.89) | 575.26 (357.45) | -63.48 (-39.44) -9.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.21 mph (35.74 km/h) |
| 25 mph (40.23 km/h) | 27.76 mph (44.67 km/h) |
| 30 mph (48.28 km/h) | 33.31 mph (53.61 km/h) |
| 35 mph (56.33 km/h) | 38.86 mph (62.54 km/h) |
| 40 mph (64.37 km/h) | 44.41 mph (71.48 km/h) |
| 45 mph (72.42 km/h) | 49.97 mph (80.41 km/h) |
| 50 mph (80.47 km/h) | 55.52 mph (89.35 km/h) |
| 55 mph (88.51 km/h) | 61.07 mph (98.28 km/h) |
| 60 mph (96.56 km/h) | 66.62 mph (107.22 km/h) |
| 65 mph (104.61 km/h) | 72.17 mph (116.15 km/h) |
| 70 mph (112.65 km/h) | 77.72 mph (125.09 km/h) |
| 75 mph (120.7 km/h) | 83.28 mph (134.02 km/h) |
| 80 mph (128.75 km/h) | 88.83 mph (142.95 km/h) |
| 85 mph (136.79 km/h) | 94.38 mph (151.89 km/h) |
| 90 mph (144.84 km/h) | 99.93 mph (160.82 km/h) |
| 95 mph (152.89 km/h) | 105.48 mph (169.76 km/h) |
| 100 mph (160.93 km/h) | 111.03 mph (178.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1464 | 1701 | 1831 | 1912 | 2000 | 2062 | 2130 | 2211 | 2324 | 2436 | 2560 | 2660 | 2841 | 3040 | 3196 | 3295 | 3351 | 3557 | 3844 | 4467 |
Better Fuel Economy Factory Ratios Increased Power
