Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-16 | 245/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.47 (926.4) | 24.75 (628.7) | -11.72 (-297.7) -32.1% |
| Width inches (mm) | 12.8 (325) | 9.65 (245) | -3.15 (-80) -24.6% |
| Circum. inches (mm) | 114.58 (2910.37) | 77.76 (1975.12) | -36.82 (-935.25) -32.1% |
| Sidewall Height inches (mm) | 10.24 (260) | 3.38 (85.75) | -6.86 (-174.25) -67% |
| Revolutions per mile (km) | 552.97 (343.6) | 814.81 (506.3) | 261.84 (162.7) 47.4% |
245/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 13.57 mph (21.84 km/h) |
| 25 mph (40.23 km/h) | 16.97 mph (27.3 km/h) |
| 30 mph (48.28 km/h) | 20.36 mph (32.77 km/h) |
| 35 mph (56.33 km/h) | 23.75 mph (38.23 km/h) |
| 40 mph (64.37 km/h) | 27.15 mph (43.69 km/h) |
| 45 mph (72.42 km/h) | 30.54 mph (49.15 km/h) |
| 50 mph (80.47 km/h) | 33.93 mph (54.61 km/h) |
| 55 mph (88.51 km/h) | 37.33 mph (60.07 km/h) |
| 60 mph (96.56 km/h) | 40.72 mph (65.53 km/h) |
| 65 mph (104.61 km/h) | 44.11 mph (70.99 km/h) |
| 70 mph (112.65 km/h) | 47.51 mph (76.45 km/h) |
| 75 mph (120.7 km/h) | 50.9 mph (81.91 km/h) |
| 80 mph (128.75 km/h) | 54.29 mph (87.37 km/h) |
| 85 mph (136.79 km/h) | 57.69 mph (92.84 km/h) |
| 90 mph (144.84 km/h) | 61.08 mph (98.3 km/h) |
| 95 mph (152.89 km/h) | 64.47 mph (103.76 km/h) |
| 100 mph (160.93 km/h) | 67.86 mph (109.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2074 | 2409 | 2594 | 2709 | 2832 | 2921 | 3018 | 3132 | 3291 | 3450 | 3626 | 3768 | 4024 | 4306 | 4526 | 4668 | 4747 | 5038 | 5444 | 6326 |
Better Fuel Economy Factory Ratios Increased Power
