Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/65-16 | 235/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27 (685.9) | 27.25 (692.2) | 0.25 (6.3) 0.9% |
| Width inches (mm) | 8.46 (215) | 9.25 (235) | 0.79 (20) 9.3% |
| Circum. inches (mm) | 84.84 (2154.82) | 85.61 (2174.61) | 0.78 (19.79) 0.9% |
| Sidewall Height inches (mm) | 5.5 (139.75) | 4.63 (117.5) | -0.88 (-22.25) -15.9% |
| Revolutions per mile (km) | 746.86 (464.08) | 740.06 (459.85) | -6.8 (-4.22) -0.9% |
235/50-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.18 mph (32.48 km/h) |
| 25 mph (40.23 km/h) | 25.23 mph (40.6 km/h) |
| 30 mph (48.28 km/h) | 30.28 mph (48.72 km/h) |
| 35 mph (56.33 km/h) | 35.32 mph (56.84 km/h) |
| 40 mph (64.37 km/h) | 40.37 mph (64.97 km/h) |
| 45 mph (72.42 km/h) | 45.41 mph (73.09 km/h) |
| 50 mph (80.47 km/h) | 50.46 mph (81.21 km/h) |
| 55 mph (88.51 km/h) | 55.51 mph (89.33 km/h) |
| 60 mph (96.56 km/h) | 60.55 mph (97.45 km/h) |
| 65 mph (104.61 km/h) | 65.6 mph (105.57 km/h) |
| 70 mph (112.65 km/h) | 70.64 mph (113.69 km/h) |
| 75 mph (120.7 km/h) | 75.69 mph (121.81 km/h) |
| 80 mph (128.75 km/h) | 80.73 mph (129.93 km/h) |
| 85 mph (136.79 km/h) | 85.78 mph (138.05 km/h) |
| 90 mph (144.84 km/h) | 90.83 mph (146.17 km/h) |
| 95 mph (152.89 km/h) | 95.87 mph (154.29 km/h) |
| 100 mph (160.93 km/h) | 100.92 mph (162.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1883 | 2188 | 2356 | 2460 | 2573 | 2653 | 2741 | 2845 | 2989 | 3134 | 3294 | 3422 | 3654 | 3911 | 4111 | 4239 | 4312 | 4576 | 4945 | 5746 |
Better Fuel Economy Factory Ratios Increased Power
