Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 32/10-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 32 (812.8) | 6.59 (167.3) 25.9% |
| Width inches (mm) | 10.83 (275) | 10 (254) | -0.83 (-21) -7.6% |
| Circum. inches (mm) | 79.84 (2027.9) | 100.53 (2553.49) | 20.69 (525.59) 25.9% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 6 (152.4) | 3.29 (83.65) 121.7% |
| Revolutions per mile (km) | 793.6 (493.12) | 630.25 (391.62) | -163.35 (-101.5) -20.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.18 mph (40.53 km/h) |
| 25 mph (40.23 km/h) | 31.48 mph (50.66 km/h) |
| 30 mph (48.28 km/h) | 37.78 mph (60.79 km/h) |
| 35 mph (56.33 km/h) | 44.07 mph (70.93 km/h) |
| 40 mph (64.37 km/h) | 50.37 mph (81.06 km/h) |
| 45 mph (72.42 km/h) | 56.66 mph (91.19 km/h) |
| 50 mph (80.47 km/h) | 62.96 mph (101.32 km/h) |
| 55 mph (88.51 km/h) | 69.25 mph (111.46 km/h) |
| 60 mph (96.56 km/h) | 75.55 mph (121.59 km/h) |
| 65 mph (104.61 km/h) | 81.85 mph (131.72 km/h) |
| 70 mph (112.65 km/h) | 88.14 mph (141.85 km/h) |
| 75 mph (120.7 km/h) | 94.44 mph (151.98 km/h) |
| 80 mph (128.75 km/h) | 100.73 mph (162.12 km/h) |
| 85 mph (136.79 km/h) | 107.03 mph (172.25 km/h) |
| 90 mph (144.84 km/h) | 113.33 mph (182.38 km/h) |
| 95 mph (152.89 km/h) | 119.62 mph (192.51 km/h) |
| 100 mph (160.93 km/h) | 125.92 mph (202.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1604 | 1863 | 2007 | 2095 | 2191 | 2259 | 2334 | 2423 | 2546 | 2669 | 2805 | 2914 | 3112 | 3331 | 3501 | 3610 | 3672 | 3897 | 4211 | 4894 |
Better Fuel Economy Factory Ratios Increased Power
