Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 360/95-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 44.93 (1141.2) | 14.53 (369) 47.8% |
| Width inches (mm) | 6.89 (175) | 14.17 (360) | 7.28 (185) 105.7% |
| Circum. inches (mm) | 95.51 (2425.94) | 141.15 (3585.19) | 45.64 (1159.25) 47.8% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 13.46 (342) | 7.26 (184.5) 117.1% |
| Revolutions per mile (km) | 663.39 (412.21) | 448.89 (278.93) | -214.5 (-133.29) -32.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.56 mph (47.57 km/h) |
| 25 mph (40.23 km/h) | 36.95 mph (59.46 km/h) |
| 30 mph (48.28 km/h) | 44.34 mph (71.35 km/h) |
| 35 mph (56.33 km/h) | 51.72 mph (83.24 km/h) |
| 40 mph (64.37 km/h) | 59.11 mph (95.14 km/h) |
| 45 mph (72.42 km/h) | 66.5 mph (107.03 km/h) |
| 50 mph (80.47 km/h) | 73.89 mph (118.92 km/h) |
| 55 mph (88.51 km/h) | 81.28 mph (130.81 km/h) |
| 60 mph (96.56 km/h) | 88.67 mph (142.7 km/h) |
| 65 mph (104.61 km/h) | 96.06 mph (154.59 km/h) |
| 70 mph (112.65 km/h) | 103.45 mph (166.49 km/h) |
| 75 mph (120.7 km/h) | 110.84 mph (178.38 km/h) |
| 80 mph (128.75 km/h) | 118.23 mph (190.27 km/h) |
| 85 mph (136.79 km/h) | 125.62 mph (202.16 km/h) |
| 90 mph (144.84 km/h) | 133.01 mph (214.05 km/h) |
| 95 mph (152.89 km/h) | 140.4 mph (225.95 km/h) |
| 100 mph (160.93 km/h) | 147.79 mph (237.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
