Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 255/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 26.04 (661.5) | 2.01 (51) 8.4% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 75.51 (1917.94) | 81.82 (2078.16) | 6.31 (160.22) 8.4% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 5.52 (140.25) | 1 (25.5) 22.2% |
| Revolutions per mile (km) | 839.1 (521.39) | 774.41 (481.19) | -64.69 (-40.2) -7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.67 mph (34.88 km/h) |
| 25 mph (40.23 km/h) | 27.09 mph (43.59 km/h) |
| 30 mph (48.28 km/h) | 32.51 mph (52.31 km/h) |
| 35 mph (56.33 km/h) | 37.92 mph (61.03 km/h) |
| 40 mph (64.37 km/h) | 43.34 mph (69.75 km/h) |
| 45 mph (72.42 km/h) | 48.76 mph (78.47 km/h) |
| 50 mph (80.47 km/h) | 54.18 mph (87.19 km/h) |
| 55 mph (88.51 km/h) | 59.59 mph (95.91 km/h) |
| 60 mph (96.56 km/h) | 65.01 mph (104.63 km/h) |
| 65 mph (104.61 km/h) | 70.43 mph (113.35 km/h) |
| 70 mph (112.65 km/h) | 75.85 mph (122.07 km/h) |
| 75 mph (120.7 km/h) | 81.27 mph (130.78 km/h) |
| 80 mph (128.75 km/h) | 86.68 mph (139.5 km/h) |
| 85 mph (136.79 km/h) | 92.1 mph (148.22 km/h) |
| 90 mph (144.84 km/h) | 97.52 mph (156.94 km/h) |
| 95 mph (152.89 km/h) | 102.94 mph (165.66 km/h) |
| 100 mph (160.93 km/h) | 108.35 mph (174.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1971 | 2289 | 2465 | 2575 | 2692 | 2776 | 2868 | 2977 | 3128 | 3279 | 3447 | 3581 | 3824 | 4092 | 4302 | 4436 | 4512 | 4788 | 5174 | 6013 |
Better Fuel Economy Factory Ratios Increased Power
