Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/55-16 | 255/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 32.07 (814.5) | 5.67 (144.1) 21.5% |
| Width inches (mm) | 9.45 (240) | 10.04 (255) | 0.59 (15) 6.2% |
| Circum. inches (mm) | 82.92 (2106.12) | 100.74 (2558.83) | 17.82 (452.7) 21.5% |
| Sidewall Height inches (mm) | 5.2 (132) | 8.53 (216.75) | 3.34 (84.75) 64.2% |
| Revolutions per mile (km) | 764.13 (474.81) | 628.94 (390.8) | -135.19 (-84) -17.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.3 mph (39.11 km/h) |
| 25 mph (40.23 km/h) | 30.37 mph (48.88 km/h) |
| 30 mph (48.28 km/h) | 36.45 mph (58.66 km/h) |
| 35 mph (56.33 km/h) | 42.52 mph (68.43 km/h) |
| 40 mph (64.37 km/h) | 48.6 mph (78.21 km/h) |
| 45 mph (72.42 km/h) | 54.67 mph (87.99 km/h) |
| 50 mph (80.47 km/h) | 60.75 mph (97.76 km/h) |
| 55 mph (88.51 km/h) | 66.82 mph (107.54 km/h) |
| 60 mph (96.56 km/h) | 72.9 mph (117.32 km/h) |
| 65 mph (104.61 km/h) | 78.97 mph (127.09 km/h) |
| 70 mph (112.65 km/h) | 85.05 mph (136.87 km/h) |
| 75 mph (120.7 km/h) | 91.12 mph (146.65 km/h) |
| 80 mph (128.75 km/h) | 97.2 mph (156.42 km/h) |
| 85 mph (136.79 km/h) | 103.27 mph (166.2 km/h) |
| 90 mph (144.84 km/h) | 109.35 mph (175.97 km/h) |
| 95 mph (152.89 km/h) | 115.42 mph (185.75 km/h) |
| 100 mph (160.93 km/h) | 121.49 mph (195.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1601 | 1859 | 2002 | 2091 | 2186 | 2254 | 2329 | 2418 | 2540 | 2663 | 2799 | 2908 | 3106 | 3324 | 3494 | 3603 | 3664 | 3889 | 4202 | 4883 |
Better Fuel Economy Factory Ratios Increased Power
