Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 37/13.5-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 36.91 (937.58) | -0.04 (-1.12) -0.1% |
| Width inches (mm) | 12.8 (325) | 13.5 (343) | 0.71 (18) 5.5% |
| Circum. inches (mm) | 116.1 (2949.01) | 115.96 (2945.49) | -0.14 (-3.52) -0.1% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 4.46 (113.19) | -0.02 (-0.56) -0.5% |
| Revolutions per mile (km) | 545.72 (339.1) | 546.37 (339.5) | 0.65 (0.41) 0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.98 mph (32.15 km/h) |
| 25 mph (40.23 km/h) | 24.97 mph (40.19 km/h) |
| 30 mph (48.28 km/h) | 29.96 mph (48.22 km/h) |
| 35 mph (56.33 km/h) | 34.96 mph (56.26 km/h) |
| 40 mph (64.37 km/h) | 39.95 mph (64.3 km/h) |
| 45 mph (72.42 km/h) | 44.95 mph (72.33 km/h) |
| 50 mph (80.47 km/h) | 49.94 mph (80.37 km/h) |
| 55 mph (88.51 km/h) | 54.93 mph (88.41 km/h) |
| 60 mph (96.56 km/h) | 59.93 mph (96.45 km/h) |
| 65 mph (104.61 km/h) | 64.92 mph (104.48 km/h) |
| 70 mph (112.65 km/h) | 69.92 mph (112.52 km/h) |
| 75 mph (120.7 km/h) | 74.91 mph (120.56 km/h) |
| 80 mph (128.75 km/h) | 79.9 mph (128.59 km/h) |
| 85 mph (136.79 km/h) | 84.9 mph (136.63 km/h) |
| 90 mph (144.84 km/h) | 89.89 mph (144.67 km/h) |
| 95 mph (152.89 km/h) | 94.89 mph (152.71 km/h) |
| 100 mph (160.93 km/h) | 99.88 mph (160.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1390 | 1615 | 1740 | 1816 | 1899 | 1958 | 2024 | 2100 | 2207 | 2313 | 2432 | 2526 | 2698 | 2887 | 3035 | 3130 | 3183 | 3378 | 3651 | 4242 |
Better Fuel Economy Factory Ratios Increased Power
