Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/65-16 | 37/13.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.68 (880.9) | 37.07 (941.48) | 2.39 (60.58) 6.9% |
| Width inches (mm) | 14.37 (365) | 13.5 (343) | -0.87 (-22) -6% |
| Circum. inches (mm) | 108.95 (2767.43) | 116.45 (2957.75) | 7.49 (190.32) 6.9% |
| Sidewall Height inches (mm) | 9.34 (237.25) | 10.53 (267.54) | 1.19 (30.29) 12.8% |
| Revolutions per mile (km) | 581.53 (361.35) | 544.11 (338.09) | -37.42 (-23.25) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.38 mph (34.4 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (43 km/h) |
| 30 mph (48.28 km/h) | 32.06 mph (51.6 km/h) |
| 35 mph (56.33 km/h) | 37.41 mph (60.2 km/h) |
| 40 mph (64.37 km/h) | 42.75 mph (68.8 km/h) |
| 45 mph (72.42 km/h) | 48.09 mph (77.4 km/h) |
| 50 mph (80.47 km/h) | 53.44 mph (86 km/h) |
| 55 mph (88.51 km/h) | 58.78 mph (94.6 km/h) |
| 60 mph (96.56 km/h) | 64.13 mph (103.2 km/h) |
| 65 mph (104.61 km/h) | 69.47 mph (111.8 km/h) |
| 70 mph (112.65 km/h) | 74.81 mph (120.4 km/h) |
| 75 mph (120.7 km/h) | 80.16 mph (129 km/h) |
| 80 mph (128.75 km/h) | 85.5 mph (137.6 km/h) |
| 85 mph (136.79 km/h) | 90.85 mph (146.2 km/h) |
| 90 mph (144.84 km/h) | 96.19 mph (154.8 km/h) |
| 95 mph (152.89 km/h) | 101.53 mph (163.4 km/h) |
| 100 mph (160.93 km/h) | 106.88 mph (172 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1385 | 1609 | 1732 | 1809 | 1891 | 1950 | 2015 | 2092 | 2198 | 2304 | 2422 | 2516 | 2687 | 2875 | 3023 | 3117 | 3170 | 3364 | 3635 | 4225 |
Better Fuel Economy Factory Ratios Increased Power
