Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-16 | 190/30-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.9) | 20.49 (520.4) | -5.85 (-148.5) -22.2% |
| Width inches (mm) | 6.89 (175) | 7.48 (190) | 0.59 (15) 8.6% |
| Circum. inches (mm) | 82.73 (2101.41) | 64.37 (1634.88) | -18.37 (-466.53) -22.2% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 2.24 (57) | -2.92 (-74.25) -56.6% |
| Revolutions per mile (km) | 765.84 (475.87) | 984.38 (611.66) | 218.54 (135.79) 28.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.56 mph (25.04 km/h) |
| 25 mph (40.23 km/h) | 19.45 mph (31.3 km/h) |
| 30 mph (48.28 km/h) | 23.34 mph (37.56 km/h) |
| 35 mph (56.33 km/h) | 27.23 mph (43.82 km/h) |
| 40 mph (64.37 km/h) | 31.12 mph (50.08 km/h) |
| 45 mph (72.42 km/h) | 35.01 mph (56.34 km/h) |
| 50 mph (80.47 km/h) | 38.9 mph (62.6 km/h) |
| 55 mph (88.51 km/h) | 42.79 mph (68.86 km/h) |
| 60 mph (96.56 km/h) | 46.68 mph (75.12 km/h) |
| 65 mph (104.61 km/h) | 50.57 mph (81.38 km/h) |
| 70 mph (112.65 km/h) | 54.46 mph (87.64 km/h) |
| 75 mph (120.7 km/h) | 58.35 mph (93.9 km/h) |
| 80 mph (128.75 km/h) | 62.24 mph (100.16 km/h) |
| 85 mph (136.79 km/h) | 66.13 mph (106.43 km/h) |
| 90 mph (144.84 km/h) | 70.02 mph (112.69 km/h) |
| 95 mph (152.89 km/h) | 73.91 mph (118.95 km/h) |
| 100 mph (160.93 km/h) | 77.8 mph (125.21 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
