Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/30-20 | 265/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.26 (667) | 25.22 (640.5) | -1.04 (-26.5) -4% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 82.5 (2095.44) | 79.22 (2012.19) | -3.28 (-83.25) -4% |
| Sidewall Height inches (mm) | 3.13 (79.5) | 2.61 (66.25) | -0.52 (-13.25) -16.7% |
| Revolutions per mile (km) | 768.02 (477.23) | 799.8 (496.97) | 31.78 (19.74) 4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.21 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24.01 mph (38.64 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.36 km/h) |
| 35 mph (56.33 km/h) | 33.61 mph (54.09 km/h) |
| 40 mph (64.37 km/h) | 38.41 mph (61.82 km/h) |
| 45 mph (72.42 km/h) | 43.21 mph (69.54 km/h) |
| 50 mph (80.47 km/h) | 48.01 mph (77.27 km/h) |
| 55 mph (88.51 km/h) | 52.81 mph (85 km/h) |
| 60 mph (96.56 km/h) | 57.62 mph (92.72 km/h) |
| 65 mph (104.61 km/h) | 62.42 mph (100.45 km/h) |
| 70 mph (112.65 km/h) | 67.22 mph (108.18 km/h) |
| 75 mph (120.7 km/h) | 72.02 mph (115.91 km/h) |
| 80 mph (128.75 km/h) | 76.82 mph (123.63 km/h) |
| 85 mph (136.79 km/h) | 81.62 mph (131.36 km/h) |
| 90 mph (144.84 km/h) | 86.42 mph (139.09 km/h) |
| 95 mph (152.89 km/h) | 91.23 mph (146.81 km/h) |
| 100 mph (160.93 km/h) | 96.03 mph (154.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2035 | 2364 | 2546 | 2659 | 2780 | 2867 | 2962 | 3075 | 3231 | 3386 | 3560 | 3698 | 3949 | 4227 | 4443 | 4582 | 4660 | 4945 | 5344 | 6210 |
Better Fuel Economy Factory Ratios Increased Power
