Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-18 | 235/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.55 (598.2) | 30.33 (770.3) | 6.78 (172.1) 28.8% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 73.99 (1879.3) | 95.27 (2419.97) | 21.29 (540.67) 28.8% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 4.16 (105.75) | 1.39 (35.25) 50% |
| Revolutions per mile (km) | 856.35 (532.11) | 665.03 (413.23) | -191.33 (-118.88) -22.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.75 mph (41.45 km/h) |
| 25 mph (40.23 km/h) | 32.19 mph (51.81 km/h) |
| 30 mph (48.28 km/h) | 38.63 mph (62.17 km/h) |
| 35 mph (56.33 km/h) | 45.07 mph (72.53 km/h) |
| 40 mph (64.37 km/h) | 51.51 mph (82.89 km/h) |
| 45 mph (72.42 km/h) | 57.95 mph (93.26 km/h) |
| 50 mph (80.47 km/h) | 64.38 mph (103.62 km/h) |
| 55 mph (88.51 km/h) | 70.82 mph (113.98 km/h) |
| 60 mph (96.56 km/h) | 77.26 mph (124.34 km/h) |
| 65 mph (104.61 km/h) | 83.7 mph (134.7 km/h) |
| 70 mph (112.65 km/h) | 90.14 mph (145.06 km/h) |
| 75 mph (120.7 km/h) | 96.58 mph (155.43 km/h) |
| 80 mph (128.75 km/h) | 103.02 mph (165.79 km/h) |
| 85 mph (136.79 km/h) | 109.45 mph (176.15 km/h) |
| 90 mph (144.84 km/h) | 115.89 mph (186.51 km/h) |
| 95 mph (152.89 km/h) | 122.33 mph (196.87 km/h) |
| 100 mph (160.93 km/h) | 128.77 mph (207.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1692 | 1966 | 2117 | 2211 | 2312 | 2384 | 2463 | 2557 | 2686 | 2816 | 2960 | 3075 | 3284 | 3514 | 3694 | 3810 | 3874 | 4112 | 4443 | 5164 |
Better Fuel Economy Factory Ratios Increased Power
