Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-19 | 320/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.61 (853.6) | 36.38 (924) | 2.77 (70.4) 8.2% |
| Width inches (mm) | 10.43 (265) | 12.6 (320) | 2.17 (55) 20.8% |
| Circum. inches (mm) | 105.58 (2681.66) | 114.28 (2902.83) | 8.71 (221.17) 8.2% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 8.19 (208) | 0.89 (22.5) 12.1% |
| Revolutions per mile (km) | 600.13 (372.9) | 554.4 (344.49) | -45.72 (-28.41) -7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.65 mph (34.84 km/h) |
| 25 mph (40.23 km/h) | 27.06 mph (43.55 km/h) |
| 30 mph (48.28 km/h) | 32.47 mph (52.26 km/h) |
| 35 mph (56.33 km/h) | 37.89 mph (60.97 km/h) |
| 40 mph (64.37 km/h) | 43.3 mph (69.68 km/h) |
| 45 mph (72.42 km/h) | 48.71 mph (78.39 km/h) |
| 50 mph (80.47 km/h) | 54.12 mph (87.1 km/h) |
| 55 mph (88.51 km/h) | 59.54 mph (95.81 km/h) |
| 60 mph (96.56 km/h) | 64.95 mph (104.52 km/h) |
| 65 mph (104.61 km/h) | 70.36 mph (113.23 km/h) |
| 70 mph (112.65 km/h) | 75.77 mph (121.95 km/h) |
| 75 mph (120.7 km/h) | 81.19 mph (130.66 km/h) |
| 80 mph (128.75 km/h) | 86.6 mph (139.37 km/h) |
| 85 mph (136.79 km/h) | 92.01 mph (148.08 km/h) |
| 90 mph (144.84 km/h) | 97.42 mph (156.79 km/h) |
| 95 mph (152.89 km/h) | 102.84 mph (165.5 km/h) |
| 100 mph (160.93 km/h) | 108.25 mph (174.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1411 | 1639 | 1765 | 1843 | 1927 | 1987 | 2053 | 2131 | 2239 | 2347 | 2467 | 2564 | 2738 | 2930 | 3080 | 3176 | 3230 | 3428 | 3704 | 4305 |
Better Fuel Economy Factory Ratios Increased Power
