Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/55-22 | 205/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.64 (905.3) | 26.07 (662.2) | -9.57 (-243.1) -26.9% |
| Width inches (mm) | 12.4 (315) | 8.07 (205) | -4.33 (-110) -34.9% |
| Circum. inches (mm) | 111.97 (2844.08) | 81.9 (2080.36) | -30.07 (-763.72) -26.9% |
| Sidewall Height inches (mm) | 6.82 (173.25) | 4.04 (102.5) | -2.79 (-70.75) -40.8% |
| Revolutions per mile (km) | 565.86 (351.61) | 773.59 (480.68) | 207.73 (129.08) 36.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 14.63 mph (23.54 km/h) |
| 25 mph (40.23 km/h) | 18.29 mph (29.43 km/h) |
| 30 mph (48.28 km/h) | 21.94 mph (35.32 km/h) |
| 35 mph (56.33 km/h) | 25.6 mph (41.2 km/h) |
| 40 mph (64.37 km/h) | 29.26 mph (47.09 km/h) |
| 45 mph (72.42 km/h) | 32.92 mph (52.97 km/h) |
| 50 mph (80.47 km/h) | 36.57 mph (58.86 km/h) |
| 55 mph (88.51 km/h) | 40.23 mph (64.75 km/h) |
| 60 mph (96.56 km/h) | 43.89 mph (70.63 km/h) |
| 65 mph (104.61 km/h) | 47.55 mph (76.52 km/h) |
| 70 mph (112.65 km/h) | 51.2 mph (82.4 km/h) |
| 75 mph (120.7 km/h) | 54.86 mph (88.29 km/h) |
| 80 mph (128.75 km/h) | 58.52 mph (94.18 km/h) |
| 85 mph (136.79 km/h) | 62.17 mph (100.06 km/h) |
| 90 mph (144.84 km/h) | 65.83 mph (105.95 km/h) |
| 95 mph (152.89 km/h) | 69.49 mph (111.83 km/h) |
| 100 mph (160.93 km/h) | 73.15 mph (117.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1969 | 2287 | 2463 | 2572 | 2689 | 2773 | 2865 | 2974 | 3125 | 3275 | 3443 | 3577 | 3820 | 4088 | 4297 | 4432 | 4507 | 4783 | 5169 | 6006 |
Better Fuel Economy Factory Ratios Increased Power
