Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/55-13 | 225/40-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.44 (544.7) | 20.09 (510.2) | -1.36 (-34.5) -6.3% |
| Width inches (mm) | 7.68 (195) | 8.86 (225) | 1.18 (30) 15.4% |
| Circum. inches (mm) | 67.37 (1711.23) | 63.1 (1602.84) | -4.27 (-108.38) -6.3% |
| Sidewall Height inches (mm) | 4.22 (107.25) | 3.54 (90) | -0.68 (-17.25) -16.1% |
| Revolutions per mile (km) | 940.46 (584.38) | 1004.06 (623.89) | 63.59 (39.52) 6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.73 mph (30.15 km/h) |
| 25 mph (40.23 km/h) | 23.42 mph (37.69 km/h) |
| 30 mph (48.28 km/h) | 28.1 mph (45.22 km/h) |
| 35 mph (56.33 km/h) | 32.78 mph (52.76 km/h) |
| 40 mph (64.37 km/h) | 37.47 mph (60.3 km/h) |
| 45 mph (72.42 km/h) | 42.15 mph (67.83 km/h) |
| 50 mph (80.47 km/h) | 46.83 mph (75.37 km/h) |
| 55 mph (88.51 km/h) | 51.52 mph (82.91 km/h) |
| 60 mph (96.56 km/h) | 56.2 mph (90.44 km/h) |
| 65 mph (104.61 km/h) | 60.88 mph (97.98 km/h) |
| 70 mph (112.65 km/h) | 65.57 mph (105.52 km/h) |
| 75 mph (120.7 km/h) | 70.25 mph (113.06 km/h) |
| 80 mph (128.75 km/h) | 74.93 mph (120.59 km/h) |
| 85 mph (136.79 km/h) | 79.62 mph (128.13 km/h) |
| 90 mph (144.84 km/h) | 84.3 mph (135.67 km/h) |
| 95 mph (152.89 km/h) | 88.98 mph (143.2 km/h) |
| 100 mph (160.93 km/h) | 93.67 mph (150.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
