Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-19.5 | 365/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.9 (810.3) | 42.99 (1092) | 11.09 (281.7) 34.8% |
| Width inches (mm) | 8.86 (225) | 14.37 (365) | 5.51 (140) 62.2% |
| Circum. inches (mm) | 100.22 (2545.63) | 135.06 (3430.62) | 34.84 (884.99) 34.8% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 11.5 (292) | 5.3 (134.5) 85.4% |
| Revolutions per mile (km) | 632.2 (392.83) | 469.11 (291.49) | -163.09 (-101.34) -25.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.95 mph (43.38 km/h) |
| 25 mph (40.23 km/h) | 33.69 mph (54.22 km/h) |
| 30 mph (48.28 km/h) | 40.43 mph (65.07 km/h) |
| 35 mph (56.33 km/h) | 47.17 mph (75.91 km/h) |
| 40 mph (64.37 km/h) | 53.91 mph (86.75 km/h) |
| 45 mph (72.42 km/h) | 60.64 mph (97.6 km/h) |
| 50 mph (80.47 km/h) | 67.38 mph (108.44 km/h) |
| 55 mph (88.51 km/h) | 74.12 mph (119.29 km/h) |
| 60 mph (96.56 km/h) | 80.86 mph (130.13 km/h) |
| 65 mph (104.61 km/h) | 87.6 mph (140.97 km/h) |
| 70 mph (112.65 km/h) | 94.34 mph (151.82 km/h) |
| 75 mph (120.7 km/h) | 101.07 mph (162.66 km/h) |
| 80 mph (128.75 km/h) | 107.81 mph (173.51 km/h) |
| 85 mph (136.79 km/h) | 114.55 mph (184.35 km/h) |
| 90 mph (144.84 km/h) | 121.29 mph (195.2 km/h) |
| 95 mph (152.89 km/h) | 128.03 mph (206.04 km/h) |
| 100 mph (160.93 km/h) | 134.76 mph (216.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1194 | 1387 | 1494 | 1560 | 1631 | 1681 | 1737 | 1803 | 1895 | 1986 | 2088 | 2169 | 2316 | 2479 | 2606 | 2687 | 2733 | 2901 | 3134 | 3642 |
Better Fuel Economy Factory Ratios Increased Power
