Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 405/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 37.54 (953.5) | 1.51 (38.32) 4.2% |
| Width inches (mm) | 12.52 (318) | 15.94 (405) | 3.43 (87) 27.4% |
| Circum. inches (mm) | 113.19 (2875.12) | 117.93 (2995.51) | 4.74 (120.39) 4.2% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 8.77 (222.75) | -1 (-25.29) -10.2% |
| Revolutions per mile (km) | 559.75 (347.81) | 537.25 (333.83) | -22.5 (-13.98) -4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.84 mph (33.53 km/h) |
| 25 mph (40.23 km/h) | 26.05 mph (41.92 km/h) |
| 30 mph (48.28 km/h) | 31.26 mph (50.3 km/h) |
| 35 mph (56.33 km/h) | 36.47 mph (58.69 km/h) |
| 40 mph (64.37 km/h) | 41.67 mph (67.07 km/h) |
| 45 mph (72.42 km/h) | 46.88 mph (75.45 km/h) |
| 50 mph (80.47 km/h) | 52.09 mph (83.84 km/h) |
| 55 mph (88.51 km/h) | 57.3 mph (92.22 km/h) |
| 60 mph (96.56 km/h) | 62.51 mph (100.6 km/h) |
| 65 mph (104.61 km/h) | 67.72 mph (108.99 km/h) |
| 70 mph (112.65 km/h) | 72.93 mph (117.37 km/h) |
| 75 mph (120.7 km/h) | 78.14 mph (125.75 km/h) |
| 80 mph (128.75 km/h) | 83.35 mph (134.14 km/h) |
| 85 mph (136.79 km/h) | 88.56 mph (142.52 km/h) |
| 90 mph (144.84 km/h) | 93.77 mph (150.91 km/h) |
| 95 mph (152.89 km/h) | 98.98 mph (159.29 km/h) |
| 100 mph (160.93 km/h) | 104.19 mph (167.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1367 | 1588 | 1710 | 1786 | 1868 | 1926 | 1990 | 2065 | 2170 | 2275 | 2391 | 2484 | 2653 | 2839 | 2985 | 3078 | 3130 | 3322 | 3590 | 4171 |
Better Fuel Economy Factory Ratios Increased Power
