Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 275/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 34.07 (865.5) | -1.96 (-49.68) -5.4% |
| Width inches (mm) | 12.52 (318) | 10.83 (275) | -1.69 (-43) -13.5% |
| Circum. inches (mm) | 113.19 (2875.12) | 107.05 (2719.05) | -6.14 (-156.07) -5.4% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 7.04 (178.75) | -2.73 (-69.29) -27.9% |
| Revolutions per mile (km) | 559.75 (347.81) | 591.88 (367.78) | 32.13 (19.96) 5.7% |
275/65-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.91 mph (30.44 km/h) |
| 25 mph (40.23 km/h) | 23.64 mph (38.05 km/h) |
| 30 mph (48.28 km/h) | 28.37 mph (45.66 km/h) |
| 35 mph (56.33 km/h) | 33.1 mph (53.27 km/h) |
| 40 mph (64.37 km/h) | 37.83 mph (60.88 km/h) |
| 45 mph (72.42 km/h) | 42.56 mph (68.49 km/h) |
| 50 mph (80.47 km/h) | 47.29 mph (76.1 km/h) |
| 55 mph (88.51 km/h) | 52.01 mph (83.71 km/h) |
| 60 mph (96.56 km/h) | 56.74 mph (91.32 km/h) |
| 65 mph (104.61 km/h) | 61.47 mph (98.93 km/h) |
| 70 mph (112.65 km/h) | 66.2 mph (106.54 km/h) |
| 75 mph (120.7 km/h) | 70.93 mph (114.15 km/h) |
| 80 mph (128.75 km/h) | 75.66 mph (121.76 km/h) |
| 85 mph (136.79 km/h) | 80.39 mph (129.37 km/h) |
| 90 mph (144.84 km/h) | 85.11 mph (136.98 km/h) |
| 95 mph (152.89 km/h) | 89.84 mph (144.59 km/h) |
| 100 mph (160.93 km/h) | 94.57 mph (152.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1506 | 1750 | 1884 | 1968 | 2057 | 2122 | 2192 | 2275 | 2391 | 2506 | 2634 | 2737 | 2923 | 3128 | 3288 | 3391 | 3448 | 3660 | 3955 | 4596 |
Better Fuel Economy Factory Ratios Increased Power
