Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-18 | 235/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.55 (598.2) | 24.55 (623.6) | 1 (25.4) 4.2% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 73.99 (1879.3) | 77.13 (1959.1) | 3.14 (79.8) 4.2% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 2.78 (70.5) | 0 (0) 0% |
| Revolutions per mile (km) | 856.35 (532.11) | 821.47 (510.44) | -34.88 (-21.67) -4.1% |
235/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.85 mph (33.55 km/h) |
| 25 mph (40.23 km/h) | 26.06 mph (41.94 km/h) |
| 30 mph (48.28 km/h) | 31.27 mph (50.33 km/h) |
| 35 mph (56.33 km/h) | 36.49 mph (58.72 km/h) |
| 40 mph (64.37 km/h) | 41.7 mph (67.11 km/h) |
| 45 mph (72.42 km/h) | 46.91 mph (75.5 km/h) |
| 50 mph (80.47 km/h) | 52.12 mph (83.88 km/h) |
| 55 mph (88.51 km/h) | 57.34 mph (92.27 km/h) |
| 60 mph (96.56 km/h) | 62.55 mph (100.66 km/h) |
| 65 mph (104.61 km/h) | 67.76 mph (109.05 km/h) |
| 70 mph (112.65 km/h) | 72.97 mph (117.44 km/h) |
| 75 mph (120.7 km/h) | 78.18 mph (125.83 km/h) |
| 80 mph (128.75 km/h) | 83.4 mph (134.21 km/h) |
| 85 mph (136.79 km/h) | 88.61 mph (142.6 km/h) |
| 90 mph (144.84 km/h) | 93.82 mph (150.99 km/h) |
| 95 mph (152.89 km/h) | 99.03 mph (159.38 km/h) |
| 100 mph (160.93 km/h) | 104.25 mph (167.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2090 | 2429 | 2615 | 2731 | 2856 | 2944 | 3042 | 3158 | 3318 | 3478 | 3656 | 3798 | 4056 | 4341 | 4563 | 4706 | 4786 | 5079 | 5489 | 6378 |
Better Fuel Economy Factory Ratios Increased Power
