Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 295/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 36.58 (929.2) | 6.18 (157) 20.3% |
| Width inches (mm) | 6.89 (175) | 11.61 (295) | 4.72 (120) 68.6% |
| Circum. inches (mm) | 95.51 (2425.94) | 114.93 (2919.17) | 19.42 (493.23) 20.3% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 9.29 (236) | 3.09 (78.5) 49.8% |
| Revolutions per mile (km) | 663.39 (412.21) | 551.3 (342.56) | -112.09 (-69.65) -16.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.07 mph (38.73 km/h) |
| 25 mph (40.23 km/h) | 30.08 mph (48.41 km/h) |
| 30 mph (48.28 km/h) | 36.1 mph (58.1 km/h) |
| 35 mph (56.33 km/h) | 42.12 mph (67.78 km/h) |
| 40 mph (64.37 km/h) | 48.13 mph (77.46 km/h) |
| 45 mph (72.42 km/h) | 54.15 mph (87.14 km/h) |
| 50 mph (80.47 km/h) | 60.17 mph (96.83 km/h) |
| 55 mph (88.51 km/h) | 66.18 mph (106.51 km/h) |
| 60 mph (96.56 km/h) | 72.2 mph (116.19 km/h) |
| 65 mph (104.61 km/h) | 78.22 mph (125.88 km/h) |
| 70 mph (112.65 km/h) | 84.23 mph (135.56 km/h) |
| 75 mph (120.7 km/h) | 90.25 mph (145.24 km/h) |
| 80 mph (128.75 km/h) | 96.27 mph (154.92 km/h) |
| 85 mph (136.79 km/h) | 102.28 mph (164.61 km/h) |
| 90 mph (144.84 km/h) | 108.3 mph (174.29 km/h) |
| 95 mph (152.89 km/h) | 114.31 mph (183.97 km/h) |
| 100 mph (160.93 km/h) | 120.33 mph (193.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1403 | 1630 | 1755 | 1833 | 1916 | 1976 | 2042 | 2119 | 2227 | 2334 | 2454 | 2549 | 2722 | 2913 | 3063 | 3158 | 3212 | 3409 | 3684 | 4281 |
Better Fuel Economy Factory Ratios Increased Power
