Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 265/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 36.69 (932) | 6.6 (167.6) 21.9% |
| Width inches (mm) | 10.08 (256) | 10.43 (265) | 0.35 (9) 3.5% |
| Circum. inches (mm) | 94.54 (2401.43) | 115.27 (2927.96) | 20.73 (526.53) 21.9% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 8.35 (212) | 2.3 (58.4) 38% |
| Revolutions per mile (km) | 670.16 (416.42) | 549.65 (341.53) | -120.51 (-74.88) -18% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.39 mph (39.24 km/h) |
| 25 mph (40.23 km/h) | 30.48 mph (49.06 km/h) |
| 30 mph (48.28 km/h) | 36.58 mph (58.87 km/h) |
| 35 mph (56.33 km/h) | 42.67 mph (68.68 km/h) |
| 40 mph (64.37 km/h) | 48.77 mph (78.49 km/h) |
| 45 mph (72.42 km/h) | 54.87 mph (88.3 km/h) |
| 50 mph (80.47 km/h) | 60.96 mph (98.11 km/h) |
| 55 mph (88.51 km/h) | 67.06 mph (107.92 km/h) |
| 60 mph (96.56 km/h) | 73.16 mph (117.73 km/h) |
| 65 mph (104.61 km/h) | 79.25 mph (127.54 km/h) |
| 70 mph (112.65 km/h) | 85.35 mph (137.35 km/h) |
| 75 mph (120.7 km/h) | 91.44 mph (147.17 km/h) |
| 80 mph (128.75 km/h) | 97.54 mph (156.98 km/h) |
| 85 mph (136.79 km/h) | 103.64 mph (166.79 km/h) |
| 90 mph (144.84 km/h) | 109.73 mph (176.6 km/h) |
| 95 mph (152.89 km/h) | 115.83 mph (186.41 km/h) |
| 100 mph (160.93 km/h) | 121.93 mph (196.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1399 | 1625 | 1750 | 1827 | 1911 | 1970 | 2036 | 2113 | 2220 | 2327 | 2446 | 2542 | 2714 | 2905 | 3053 | 3149 | 3202 | 3399 | 3672 | 4268 |
Better Fuel Economy Factory Ratios Increased Power
