Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/45-18 | 195/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.26 (641.7) | 24.91 (632.7) | -0.35 (-9) -1.4% |
| Width inches (mm) | 8.07 (205) | 7.68 (195) | -0.39 (-10) -4.9% |
| Circum. inches (mm) | 79.37 (2015.96) | 78.26 (1987.69) | -1.11 (-28.27) -1.4% |
| Sidewall Height inches (mm) | 3.63 (92.25) | 3.45 (87.75) | -0.18 (-4.5) -4.9% |
| Revolutions per mile (km) | 798.3 (496.04) | 809.66 (503.1) | 11.36 (7.06) 1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.72 mph (31.74 km/h) |
| 25 mph (40.23 km/h) | 24.65 mph (39.67 km/h) |
| 30 mph (48.28 km/h) | 29.58 mph (47.6 km/h) |
| 35 mph (56.33 km/h) | 34.51 mph (55.54 km/h) |
| 40 mph (64.37 km/h) | 39.44 mph (63.47 km/h) |
| 45 mph (72.42 km/h) | 44.37 mph (71.4 km/h) |
| 50 mph (80.47 km/h) | 49.3 mph (79.34 km/h) |
| 55 mph (88.51 km/h) | 54.23 mph (87.27 km/h) |
| 60 mph (96.56 km/h) | 59.16 mph (95.21 km/h) |
| 65 mph (104.61 km/h) | 64.09 mph (103.14 km/h) |
| 70 mph (112.65 km/h) | 69.02 mph (111.07 km/h) |
| 75 mph (120.7 km/h) | 73.95 mph (119.01 km/h) |
| 80 mph (128.75 km/h) | 78.88 mph (126.94 km/h) |
| 85 mph (136.79 km/h) | 83.81 mph (134.88 km/h) |
| 90 mph (144.84 km/h) | 88.74 mph (142.81 km/h) |
| 95 mph (152.89 km/h) | 93.67 mph (150.74 km/h) |
| 100 mph (160.93 km/h) | 98.6 mph (158.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2060 | 2394 | 2578 | 2692 | 2814 | 2902 | 2999 | 3113 | 3270 | 3428 | 3604 | 3744 | 3998 | 4279 | 4498 | 4638 | 4717 | 5006 | 5410 | 6286 |
Better Fuel Economy Factory Ratios Increased Power
