Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/60-18 | 275/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.69 (703.2) | 27.74 (704.7) | 0.06 (1.5) 0.2% |
| Width inches (mm) | 8.07 (205) | 10.83 (275) | 2.76 (70) 34.1% |
| Circum. inches (mm) | 86.98 (2209.17) | 87.16 (2213.88) | 0.19 (4.71) 0.2% |
| Sidewall Height inches (mm) | 4.84 (123) | 4.87 (123.75) | 0.03 (0.75) 0.6% |
| Revolutions per mile (km) | 728.48 (452.66) | 726.93 (451.69) | -1.55 (-0.96) -0.2% |
275/45-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.04 mph (32.26 km/h) |
| 25 mph (40.23 km/h) | 25.05 mph (40.32 km/h) |
| 30 mph (48.28 km/h) | 30.06 mph (48.38 km/h) |
| 35 mph (56.33 km/h) | 35.07 mph (56.45 km/h) |
| 40 mph (64.37 km/h) | 40.09 mph (64.51 km/h) |
| 45 mph (72.42 km/h) | 45.1 mph (72.58 km/h) |
| 50 mph (80.47 km/h) | 50.11 mph (80.64 km/h) |
| 55 mph (88.51 km/h) | 55.12 mph (88.7 km/h) |
| 60 mph (96.56 km/h) | 60.13 mph (96.77 km/h) |
| 65 mph (104.61 km/h) | 65.14 mph (104.83 km/h) |
| 70 mph (112.65 km/h) | 70.15 mph (112.89 km/h) |
| 75 mph (120.7 km/h) | 75.16 mph (120.96 km/h) |
| 80 mph (128.75 km/h) | 80.17 mph (129.02 km/h) |
| 85 mph (136.79 km/h) | 85.18 mph (137.09 km/h) |
| 90 mph (144.84 km/h) | 90.19 mph (145.15 km/h) |
| 95 mph (152.89 km/h) | 95.2 mph (153.21 km/h) |
| 100 mph (160.93 km/h) | 100.21 mph (161.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1850 | 2149 | 2314 | 2417 | 2527 | 2606 | 2692 | 2795 | 2936 | 3078 | 3235 | 3361 | 3590 | 3842 | 4038 | 4164 | 4235 | 4495 | 4857 | 5644 |
Better Fuel Economy Factory Ratios Increased Power
