Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/90-18 | 265/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.98 (736.2) | 33.65 (854.7) | 4.67 (118.5) 16.1% |
| Width inches (mm) | 6.1 (155) | 10.43 (265) | 4.33 (110) 71% |
| Circum. inches (mm) | 91.06 (2312.84) | 105.71 (2685.12) | 14.66 (372.28) 16.1% |
| Sidewall Height inches (mm) | 5.49 (139.5) | 7.82 (198.75) | 2.33 (59.25) 42.5% |
| Revolutions per mile (km) | 695.83 (432.37) | 599.36 (372.42) | -96.47 (-59.95) -13.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.22 mph (37.37 km/h) |
| 25 mph (40.23 km/h) | 29.02 mph (46.71 km/h) |
| 30 mph (48.28 km/h) | 34.83 mph (56.05 km/h) |
| 35 mph (56.33 km/h) | 40.63 mph (65.39 km/h) |
| 40 mph (64.37 km/h) | 46.44 mph (74.74 km/h) |
| 45 mph (72.42 km/h) | 52.24 mph (84.08 km/h) |
| 50 mph (80.47 km/h) | 58.05 mph (93.42 km/h) |
| 55 mph (88.51 km/h) | 63.85 mph (102.76 km/h) |
| 60 mph (96.56 km/h) | 69.66 mph (112.1 km/h) |
| 65 mph (104.61 km/h) | 75.46 mph (121.45 km/h) |
| 70 mph (112.65 km/h) | 81.27 mph (130.79 km/h) |
| 75 mph (120.7 km/h) | 87.07 mph (140.13 km/h) |
| 80 mph (128.75 km/h) | 92.88 mph (149.47 km/h) |
| 85 mph (136.79 km/h) | 98.68 mph (158.81 km/h) |
| 90 mph (144.84 km/h) | 104.49 mph (168.16 km/h) |
| 95 mph (152.89 km/h) | 110.29 mph (177.5 km/h) |
| 100 mph (160.93 km/h) | 116.1 mph (186.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1525 | 1772 | 1908 | 1993 | 2083 | 2148 | 2220 | 2304 | 2421 | 2538 | 2668 | 2771 | 2960 | 3167 | 3330 | 3433 | 3492 | 3706 | 4005 | 4654 |
Better Fuel Economy Factory Ratios Increased Power
