Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/75-16 | 325/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.56 (953.9) | 31.63 (803.5) | -5.92 (-150.4) -15.8% |
| Width inches (mm) | 14.37 (365) | 12.8 (325) | -1.57 (-40) -11% |
| Circum. inches (mm) | 117.98 (2996.77) | 99.38 (2524.27) | -18.6 (-472.5) -15.8% |
| Sidewall Height inches (mm) | 10.78 (273.75) | 8.32 (211.25) | -2.46 (-62.5) -22.8% |
| Revolutions per mile (km) | 537.03 (333.69) | 637.55 (396.15) | 100.52 (62.46) 18.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.85 mph (27.11 km/h) |
| 25 mph (40.23 km/h) | 21.06 mph (33.89 km/h) |
| 30 mph (48.28 km/h) | 25.27 mph (40.67 km/h) |
| 35 mph (56.33 km/h) | 29.48 mph (47.45 km/h) |
| 40 mph (64.37 km/h) | 33.69 mph (54.22 km/h) |
| 45 mph (72.42 km/h) | 37.9 mph (61 km/h) |
| 50 mph (80.47 km/h) | 42.12 mph (67.78 km/h) |
| 55 mph (88.51 km/h) | 46.33 mph (74.56 km/h) |
| 60 mph (96.56 km/h) | 50.54 mph (81.34 km/h) |
| 65 mph (104.61 km/h) | 54.75 mph (88.11 km/h) |
| 70 mph (112.65 km/h) | 58.96 mph (94.89 km/h) |
| 75 mph (120.7 km/h) | 63.17 mph (101.67 km/h) |
| 80 mph (128.75 km/h) | 67.39 mph (108.45 km/h) |
| 85 mph (136.79 km/h) | 71.6 mph (115.23 km/h) |
| 90 mph (144.84 km/h) | 75.81 mph (122 km/h) |
| 95 mph (152.89 km/h) | 80.02 mph (128.78 km/h) |
| 100 mph (160.93 km/h) | 84.23 mph (135.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1622 | 1885 | 2030 | 2120 | 2216 | 2285 | 2361 | 2451 | 2575 | 2699 | 2838 | 2948 | 3148 | 3369 | 3542 | 3652 | 3714 | 3942 | 4260 | 4950 |
Better Fuel Economy Factory Ratios Increased Power
