Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 265/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 29.48 (748.7) | -0.1 (-2.5) -0.3% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 92.91 (2359.96) | 92.6 (2352.11) | -0.31 (-7.85) -0.3% |
| Sidewall Height inches (mm) | 5.79 (147) | 5.74 (145.75) | -0.05 (-1.25) -0.9% |
| Revolutions per mile (km) | 681.94 (423.73) | 684.21 (425.15) | 2.28 (1.41) 0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.93 mph (32.08 km/h) |
| 25 mph (40.23 km/h) | 24.92 mph (40.1 km/h) |
| 30 mph (48.28 km/h) | 29.9 mph (48.12 km/h) |
| 35 mph (56.33 km/h) | 34.88 mph (56.14 km/h) |
| 40 mph (64.37 km/h) | 39.87 mph (64.16 km/h) |
| 45 mph (72.42 km/h) | 44.85 mph (72.18 km/h) |
| 50 mph (80.47 km/h) | 49.83 mph (80.2 km/h) |
| 55 mph (88.51 km/h) | 54.82 mph (88.22 km/h) |
| 60 mph (96.56 km/h) | 59.8 mph (96.24 km/h) |
| 65 mph (104.61 km/h) | 64.78 mph (104.26 km/h) |
| 70 mph (112.65 km/h) | 69.77 mph (112.28 km/h) |
| 75 mph (120.7 km/h) | 74.75 mph (120.3 km/h) |
| 80 mph (128.75 km/h) | 79.73 mph (128.32 km/h) |
| 85 mph (136.79 km/h) | 84.72 mph (136.34 km/h) |
| 90 mph (144.84 km/h) | 89.7 mph (144.36 km/h) |
| 95 mph (152.89 km/h) | 94.68 mph (152.38 km/h) |
| 100 mph (160.93 km/h) | 99.67 mph (160.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1741 | 2023 | 2178 | 2275 | 2378 | 2452 | 2534 | 2630 | 2764 | 2897 | 3045 | 3164 | 3379 | 3616 | 3801 | 3920 | 3986 | 4231 | 4572 | 5312 |
Better Fuel Economy Factory Ratios Increased Power
