Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-20 | 295/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.68 (728.5) | 32.78 (832.5) | 4.09 (104) 14.3% |
| Width inches (mm) | 9.65 (245) | 11.61 (295) | 1.97 (50) 20.4% |
| Circum. inches (mm) | 90.1 (2288.65) | 102.97 (2615.38) | 12.86 (326.73) 14.3% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 6.39 (162.25) | 2.05 (52) 47.2% |
| Revolutions per mile (km) | 703.18 (436.94) | 615.34 (382.35) | -87.85 (-54.58) -12.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.86 mph (36.78 km/h) |
| 25 mph (40.23 km/h) | 28.57 mph (45.98 km/h) |
| 30 mph (48.28 km/h) | 34.28 mph (55.17 km/h) |
| 35 mph (56.33 km/h) | 40 mph (64.37 km/h) |
| 40 mph (64.37 km/h) | 45.71 mph (73.56 km/h) |
| 45 mph (72.42 km/h) | 51.42 mph (82.76 km/h) |
| 50 mph (80.47 km/h) | 57.14 mph (91.95 km/h) |
| 55 mph (88.51 km/h) | 62.85 mph (101.15 km/h) |
| 60 mph (96.56 km/h) | 68.57 mph (110.35 km/h) |
| 65 mph (104.61 km/h) | 74.28 mph (119.54 km/h) |
| 70 mph (112.65 km/h) | 79.99 mph (128.74 km/h) |
| 75 mph (120.7 km/h) | 85.71 mph (137.93 km/h) |
| 80 mph (128.75 km/h) | 91.42 mph (147.13 km/h) |
| 85 mph (136.79 km/h) | 97.13 mph (156.32 km/h) |
| 90 mph (144.84 km/h) | 102.85 mph (165.52 km/h) |
| 95 mph (152.89 km/h) | 108.56 mph (174.71 km/h) |
| 100 mph (160.93 km/h) | 114.28 mph (183.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1566 | 1819 | 1959 | 2046 | 2139 | 2206 | 2279 | 2366 | 2485 | 2605 | 2739 | 2845 | 3039 | 3252 | 3418 | 3525 | 3585 | 3805 | 4111 | 4778 |
Better Fuel Economy Factory Ratios Increased Power
