Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/75-16 | 180/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.86 (631.4) | 25.8 (655.2) | 0.94 (23.8) 3.8% |
| Width inches (mm) | 5.91 (150) | 7.09 (180) | 1.18 (30) 20% |
| Circum. inches (mm) | 78.09 (1983.6) | 81.04 (2058.37) | 2.94 (74.77) 3.8% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 3.9 (99) | -0.53 (-13.5) -12% |
| Revolutions per mile (km) | 811.32 (504.13) | 781.85 (485.82) | -29.47 (-18.31) -3.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.75 mph (33.4 km/h) |
| 25 mph (40.23 km/h) | 25.94 mph (41.75 km/h) |
| 30 mph (48.28 km/h) | 31.13 mph (50.1 km/h) |
| 35 mph (56.33 km/h) | 36.32 mph (58.45 km/h) |
| 40 mph (64.37 km/h) | 41.51 mph (66.8 km/h) |
| 45 mph (72.42 km/h) | 46.7 mph (75.15 km/h) |
| 50 mph (80.47 km/h) | 51.88 mph (83.5 km/h) |
| 55 mph (88.51 km/h) | 57.07 mph (91.85 km/h) |
| 60 mph (96.56 km/h) | 62.26 mph (100.2 km/h) |
| 65 mph (104.61 km/h) | 67.45 mph (108.55 km/h) |
| 70 mph (112.65 km/h) | 72.64 mph (116.9 km/h) |
| 75 mph (120.7 km/h) | 77.83 mph (125.25 km/h) |
| 80 mph (128.75 km/h) | 83.02 mph (133.6 km/h) |
| 85 mph (136.79 km/h) | 88.2 mph (141.95 km/h) |
| 90 mph (144.84 km/h) | 93.39 mph (150.3 km/h) |
| 95 mph (152.89 km/h) | 98.58 mph (158.65 km/h) |
| 100 mph (160.93 km/h) | 103.77 mph (167 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | 2311 | 2489 | 2599 | 2718 | 2802 | 2896 | 3006 | 3158 | 3310 | 3480 | 3615 | 3861 | 4132 | 4343 | 4479 | 4555 | 4834 | 5224 | 6071 |
Better Fuel Economy Factory Ratios Increased Power
