Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 295/95-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 42.07 (1068.5) | 11.67 (296.3) 38.4% |
| Width inches (mm) | 6.89 (175) | 11.61 (295) | 4.72 (120) 68.6% |
| Circum. inches (mm) | 95.51 (2425.94) | 132.16 (3356.79) | 36.65 (930.85) 38.4% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 11.03 (280.25) | 4.83 (122.75) 77.9% |
| Revolutions per mile (km) | 663.39 (412.21) | 479.43 (297.9) | -183.96 (-114.31) -27.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.67 mph (44.54 km/h) |
| 25 mph (40.23 km/h) | 34.59 mph (55.67 km/h) |
| 30 mph (48.28 km/h) | 41.51 mph (66.81 km/h) |
| 35 mph (56.33 km/h) | 48.43 mph (77.94 km/h) |
| 40 mph (64.37 km/h) | 55.35 mph (89.07 km/h) |
| 45 mph (72.42 km/h) | 62.27 mph (100.21 km/h) |
| 50 mph (80.47 km/h) | 69.19 mph (111.34 km/h) |
| 55 mph (88.51 km/h) | 76.1 mph (122.48 km/h) |
| 60 mph (96.56 km/h) | 83.02 mph (133.61 km/h) |
| 65 mph (104.61 km/h) | 89.94 mph (144.75 km/h) |
| 70 mph (112.65 km/h) | 96.86 mph (155.88 km/h) |
| 75 mph (120.7 km/h) | 103.78 mph (167.02 km/h) |
| 80 mph (128.75 km/h) | 110.7 mph (178.15 km/h) |
| 85 mph (136.79 km/h) | 117.62 mph (189.28 km/h) |
| 90 mph (144.84 km/h) | 124.53 mph (200.42 km/h) |
| 95 mph (152.89 km/h) | 131.45 mph (211.55 km/h) |
| 100 mph (160.93 km/h) | 138.37 mph (222.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1220 | 1417 | 1526 | 1594 | 1667 | 1718 | 1776 | 1843 | 1937 | 2030 | 2134 | 2217 | 2367 | 2534 | 2663 | 2746 | 2793 | 2964 | 3203 | 3722 |
Better Fuel Economy Factory Ratios Increased Power
