Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/35-18 | 215/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 23.08 (586.2) | -0.85 (-21.5) -3.5% |
| Width inches (mm) | 8.46 (215) | 8.46 (215) | 0 (0) 0% |
| Circum. inches (mm) | 75.16 (1909.15) | 72.5 (1841.6) | -2.66 (-67.54) -3.5% |
| Sidewall Height inches (mm) | 2.96 (75.25) | 2.54 (64.5) | -0.42 (-10.75) -14.3% |
| Revolutions per mile (km) | 842.97 (523.79) | 873.88 (543) | 30.92 (19.21) 3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.29 mph (31.05 km/h) |
| 25 mph (40.23 km/h) | 24.12 mph (38.81 km/h) |
| 30 mph (48.28 km/h) | 28.94 mph (46.57 km/h) |
| 35 mph (56.33 km/h) | 33.76 mph (54.33 km/h) |
| 40 mph (64.37 km/h) | 38.58 mph (62.1 km/h) |
| 45 mph (72.42 km/h) | 43.41 mph (69.86 km/h) |
| 50 mph (80.47 km/h) | 48.23 mph (77.62 km/h) |
| 55 mph (88.51 km/h) | 53.05 mph (85.38 km/h) |
| 60 mph (96.56 km/h) | 57.88 mph (93.14 km/h) |
| 65 mph (104.61 km/h) | 62.7 mph (100.91 km/h) |
| 70 mph (112.65 km/h) | 67.52 mph (108.67 km/h) |
| 75 mph (120.7 km/h) | 72.35 mph (116.43 km/h) |
| 80 mph (128.75 km/h) | 77.17 mph (124.19 km/h) |
| 85 mph (136.79 km/h) | 81.99 mph (131.95 km/h) |
| 90 mph (144.84 km/h) | 86.82 mph (139.72 km/h) |
| 95 mph (152.89 km/h) | 91.64 mph (147.48 km/h) |
| 100 mph (160.93 km/h) | 96.46 mph (155.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2224 | 2583 | 2782 | 2905 | 3038 | 3132 | 3236 | 3359 | 3530 | 3700 | 3889 | 4041 | 4315 | 4618 | 4855 | 5006 | 5091 | 5404 | 5839 | 6785 |
Better Fuel Economy Factory Ratios Increased Power
