Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-18 | 150/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.5 (673.2) | 25.45 (646.4) | -1.06 (-26.8) -4% |
| Width inches (mm) | 7.09 (180) | 5.91 (150) | -1.18 (-30) -16.7% |
| Circum. inches (mm) | 83.26 (2114.92) | 79.95 (2030.73) | -3.31 (-84.19) -4% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.72 (120) | 0.47 (12) 11.1% |
| Revolutions per mile (km) | 760.95 (472.83) | 792.5 (492.43) | 31.55 (19.6) 4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.2 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24 mph (38.63 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.36 km/h) |
| 35 mph (56.33 km/h) | 33.61 mph (54.08 km/h) |
| 40 mph (64.37 km/h) | 38.41 mph (61.81 km/h) |
| 45 mph (72.42 km/h) | 43.21 mph (69.54 km/h) |
| 50 mph (80.47 km/h) | 48.01 mph (77.26 km/h) |
| 55 mph (88.51 km/h) | 52.81 mph (84.99 km/h) |
| 60 mph (96.56 km/h) | 57.61 mph (92.72 km/h) |
| 65 mph (104.61 km/h) | 62.41 mph (100.44 km/h) |
| 70 mph (112.65 km/h) | 67.21 mph (108.17 km/h) |
| 75 mph (120.7 km/h) | 72.01 mph (115.9 km/h) |
| 80 mph (128.75 km/h) | 76.82 mph (123.62 km/h) |
| 85 mph (136.79 km/h) | 81.62 mph (131.35 km/h) |
| 90 mph (144.84 km/h) | 86.42 mph (139.08 km/h) |
| 95 mph (152.89 km/h) | 91.22 mph (146.8 km/h) |
| 100 mph (160.93 km/h) | 96.02 mph (154.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | 2343 | 2523 | 2635 | 2755 | 2841 | 2935 | 3047 | 3201 | 3356 | 3527 | 3664 | 3913 | 4188 | 4403 | 4540 | 4617 | 4900 | 5295 | 6153 |
Better Fuel Economy Factory Ratios Increased Power
