Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-19 | 365/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.51 (724.1) | 26.62 (676.2) | -1.89 (-47.9) -6.6% |
| Width inches (mm) | 13.58 (345) | 14.37 (365) | 0.79 (20) 5.8% |
| Circum. inches (mm) | 89.56 (2274.83) | 83.64 (2124.34) | -5.92 (-150.48) -6.6% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 4.31 (109.5) | -0.44 (-11.25) -9.3% |
| Revolutions per mile (km) | 707.46 (439.59) | 757.57 (470.73) | 50.11 (31.14) 7.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.68 mph (30.06 km/h) |
| 25 mph (40.23 km/h) | 23.35 mph (37.57 km/h) |
| 30 mph (48.28 km/h) | 28.02 mph (45.09 km/h) |
| 35 mph (56.33 km/h) | 32.68 mph (52.6 km/h) |
| 40 mph (64.37 km/h) | 37.35 mph (60.12 km/h) |
| 45 mph (72.42 km/h) | 42.02 mph (67.63 km/h) |
| 50 mph (80.47 km/h) | 46.69 mph (75.14 km/h) |
| 55 mph (88.51 km/h) | 51.36 mph (82.66 km/h) |
| 60 mph (96.56 km/h) | 56.03 mph (90.17 km/h) |
| 65 mph (104.61 km/h) | 60.7 mph (97.69 km/h) |
| 70 mph (112.65 km/h) | 65.37 mph (105.2 km/h) |
| 75 mph (120.7 km/h) | 70.04 mph (112.72 km/h) |
| 80 mph (128.75 km/h) | 74.71 mph (120.23 km/h) |
| 85 mph (136.79 km/h) | 79.38 mph (127.75 km/h) |
| 90 mph (144.84 km/h) | 84.05 mph (135.26 km/h) |
| 95 mph (152.89 km/h) | 88.72 mph (142.77 km/h) |
| 100 mph (160.93 km/h) | 93.38 mph (150.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1928 | 2240 | 2412 | 2519 | 2633 | 2715 | 2806 | 2912 | 3060 | 3208 | 3372 | 3503 | 3741 | 4003 | 4209 | 4340 | 4414 | 4684 | 5062 | 5882 |
Better Fuel Economy Factory Ratios Increased Power
