Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-18 | 295/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.7) | 32.78 (832.5) | 2.87 (72.8) 9.6% |
| Width inches (mm) | 10.83 (275) | 11.61 (295) | 0.79 (20) 7.3% |
| Circum. inches (mm) | 93.96 (2386.67) | 102.97 (2615.38) | 9 (228.71) 9.6% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 6.39 (162.25) | 0.43 (11) 7.3% |
| Revolutions per mile (km) | 674.31 (418.99) | 615.34 (382.35) | -58.97 (-36.64) -8.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.92 mph (35.27 km/h) |
| 25 mph (40.23 km/h) | 27.4 mph (44.09 km/h) |
| 30 mph (48.28 km/h) | 32.87 mph (52.91 km/h) |
| 35 mph (56.33 km/h) | 38.35 mph (61.72 km/h) |
| 40 mph (64.37 km/h) | 43.83 mph (70.54 km/h) |
| 45 mph (72.42 km/h) | 49.31 mph (79.36 km/h) |
| 50 mph (80.47 km/h) | 54.79 mph (88.18 km/h) |
| 55 mph (88.51 km/h) | 60.27 mph (97 km/h) |
| 60 mph (96.56 km/h) | 65.75 mph (105.81 km/h) |
| 65 mph (104.61 km/h) | 71.23 mph (114.63 km/h) |
| 70 mph (112.65 km/h) | 76.71 mph (123.45 km/h) |
| 75 mph (120.7 km/h) | 82.19 mph (132.27 km/h) |
| 80 mph (128.75 km/h) | 87.67 mph (141.09 km/h) |
| 85 mph (136.79 km/h) | 93.15 mph (149.9 km/h) |
| 90 mph (144.84 km/h) | 98.62 mph (158.72 km/h) |
| 95 mph (152.89 km/h) | 104.1 mph (167.54 km/h) |
| 100 mph (160.93 km/h) | 109.58 mph (176.36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1566 | 1819 | 1959 | 2046 | 2139 | 2206 | 2279 | 2366 | 2485 | 2605 | 2739 | 2845 | 3039 | 3252 | 3418 | 3525 | 3585 | 3805 | 4111 | 4778 |
Better Fuel Economy Factory Ratios Increased Power
