Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 360/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 42.68 (1084) | -0.31 (-8) -0.7% |
| Width inches (mm) | 14.37 (365) | 14.17 (360) | -0.2 (-5) -1.4% |
| Circum. inches (mm) | 135.06 (3430.62) | 134.07 (3405.49) | -0.99 (-25.13) -0.7% |
| Sidewall Height inches (mm) | 11.5 (292) | 11.34 (288) | -0.16 (-4) -1.4% |
| Revolutions per mile (km) | 469.11 (291.49) | 472.57 (293.64) | 3.46 (2.15) 0.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.95 km/h) |
| 25 mph (40.23 km/h) | 24.82 mph (39.94 km/h) |
| 30 mph (48.28 km/h) | 29.78 mph (47.93 km/h) |
| 35 mph (56.33 km/h) | 34.74 mph (55.91 km/h) |
| 40 mph (64.37 km/h) | 39.71 mph (63.9 km/h) |
| 45 mph (72.42 km/h) | 44.67 mph (71.89 km/h) |
| 50 mph (80.47 km/h) | 49.63 mph (79.88 km/h) |
| 55 mph (88.51 km/h) | 54.6 mph (87.87 km/h) |
| 60 mph (96.56 km/h) | 59.56 mph (95.85 km/h) |
| 65 mph (104.61 km/h) | 64.52 mph (103.84 km/h) |
| 70 mph (112.65 km/h) | 69.49 mph (111.83 km/h) |
| 75 mph (120.7 km/h) | 74.45 mph (119.82 km/h) |
| 80 mph (128.75 km/h) | 79.41 mph (127.8 km/h) |
| 85 mph (136.79 km/h) | 84.38 mph (135.79 km/h) |
| 90 mph (144.84 km/h) | 89.34 mph (143.78 km/h) |
| 95 mph (152.89 km/h) | 94.3 mph (151.77 km/h) |
| 100 mph (160.93 km/h) | 99.27 mph (159.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1203 | 1397 | 1505 | 1571 | 1643 | 1694 | 1750 | 1817 | 1909 | 2001 | 2103 | 2185 | 2334 | 2497 | 2625 | 2707 | 2753 | 2922 | 3157 | 3669 |
Better Fuel Economy Factory Ratios Increased Power
