Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 425/70-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 43.43 (1103) | 7.39 (187.82) 20.5% |
| Width inches (mm) | 12.52 (318) | 16.73 (425) | 4.21 (107) 33.6% |
| Circum. inches (mm) | 113.19 (2875.12) | 136.42 (3465.18) | 23.23 (590.05) 20.5% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 11.71 (297.5) | 1.95 (49.46) 19.9% |
| Revolutions per mile (km) | 559.75 (347.81) | 464.43 (288.59) | -95.31 (-59.23) -17% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.1 mph (38.79 km/h) |
| 25 mph (40.23 km/h) | 30.13 mph (48.49 km/h) |
| 30 mph (48.28 km/h) | 36.16 mph (58.19 km/h) |
| 35 mph (56.33 km/h) | 42.18 mph (67.89 km/h) |
| 40 mph (64.37 km/h) | 48.21 mph (77.59 km/h) |
| 45 mph (72.42 km/h) | 54.24 mph (87.28 km/h) |
| 50 mph (80.47 km/h) | 60.26 mph (96.98 km/h) |
| 55 mph (88.51 km/h) | 66.29 mph (106.68 km/h) |
| 60 mph (96.56 km/h) | 72.31 mph (116.38 km/h) |
| 65 mph (104.61 km/h) | 78.34 mph (126.08 km/h) |
| 70 mph (112.65 km/h) | 84.37 mph (135.77 km/h) |
| 75 mph (120.7 km/h) | 90.39 mph (145.47 km/h) |
| 80 mph (128.75 km/h) | 96.42 mph (155.17 km/h) |
| 85 mph (136.79 km/h) | 102.44 mph (164.87 km/h) |
| 90 mph (144.84 km/h) | 108.47 mph (174.57 km/h) |
| 95 mph (152.89 km/h) | 114.5 mph (184.26 km/h) |
| 100 mph (160.93 km/h) | 120.52 mph (193.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1182 | 1373 | 1479 | 1544 | 1614 | 1665 | 1720 | 1785 | 1876 | 1966 | 2067 | 2148 | 2293 | 2454 | 2580 | 2661 | 2706 | 2872 | 3103 | 3606 |
Better Fuel Economy Factory Ratios Increased Power
