Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-18 | 345/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.51 (698.7) | 30.22 (767.7) | 2.72 (69) 9.9% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 86.42 (2195.03) | 94.95 (2411.8) | 8.53 (216.77) 9.9% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 6.11 (155.25) | 1.36 (34.5) 28.6% |
| Revolutions per mile (km) | 733.18 (455.57) | 667.28 (414.63) | -65.9 (-40.95) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.98 mph (35.37 km/h) |
| 25 mph (40.23 km/h) | 27.47 mph (44.21 km/h) |
| 30 mph (48.28 km/h) | 32.96 mph (53.05 km/h) |
| 35 mph (56.33 km/h) | 38.46 mph (61.89 km/h) |
| 40 mph (64.37 km/h) | 43.95 mph (70.73 km/h) |
| 45 mph (72.42 km/h) | 49.44 mph (79.57 km/h) |
| 50 mph (80.47 km/h) | 54.94 mph (88.41 km/h) |
| 55 mph (88.51 km/h) | 60.43 mph (97.26 km/h) |
| 60 mph (96.56 km/h) | 65.93 mph (106.1 km/h) |
| 65 mph (104.61 km/h) | 71.42 mph (114.94 km/h) |
| 70 mph (112.65 km/h) | 76.91 mph (123.78 km/h) |
| 75 mph (120.7 km/h) | 82.41 mph (132.62 km/h) |
| 80 mph (128.75 km/h) | 87.9 mph (141.46 km/h) |
| 85 mph (136.79 km/h) | 93.39 mph (150.3 km/h) |
| 90 mph (144.84 km/h) | 98.89 mph (159.15 km/h) |
| 95 mph (152.89 km/h) | 104.38 mph (167.99 km/h) |
| 100 mph (160.93 km/h) | 109.88 mph (176.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1698 | 1973 | 2124 | 2218 | 2320 | 2392 | 2471 | 2565 | 2695 | 2825 | 2970 | 3085 | 3295 | 3526 | 3707 | 3823 | 3888 | 4126 | 4458 | 5181 |
Better Fuel Economy Factory Ratios Increased Power
