Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 225/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 24.52 (622.7) | 3.54 (90) 16.9% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 65.89 (1673.53) | 77.02 (1956.27) | 11.13 (282.74) 16.9% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.76 (146.25) | 1.77 (45) 44.4% |
| Revolutions per mile (km) | 961.65 (597.54) | 822.66 (511.18) | -138.99 (-86.36) -14.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.38 mph (37.62 km/h) |
| 25 mph (40.23 km/h) | 29.22 mph (47.03 km/h) |
| 30 mph (48.28 km/h) | 35.07 mph (56.44 km/h) |
| 35 mph (56.33 km/h) | 40.91 mph (65.84 km/h) |
| 40 mph (64.37 km/h) | 46.76 mph (75.25 km/h) |
| 45 mph (72.42 km/h) | 52.6 mph (84.66 km/h) |
| 50 mph (80.47 km/h) | 58.45 mph (94.06 km/h) |
| 55 mph (88.51 km/h) | 64.29 mph (103.47 km/h) |
| 60 mph (96.56 km/h) | 70.14 mph (112.87 km/h) |
| 65 mph (104.61 km/h) | 75.98 mph (122.28 km/h) |
| 70 mph (112.65 km/h) | 81.83 mph (131.69 km/h) |
| 75 mph (120.7 km/h) | 87.67 mph (141.09 km/h) |
| 80 mph (128.75 km/h) | 93.52 mph (150.5 km/h) |
| 85 mph (136.79 km/h) | 99.36 mph (159.91 km/h) |
| 90 mph (144.84 km/h) | 105.21 mph (169.31 km/h) |
| 95 mph (152.89 km/h) | 111.05 mph (178.72 km/h) |
| 100 mph (160.93 km/h) | 116.9 mph (188.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2094 | 2432 | 2619 | 2735 | 2860 | 2949 | 3047 | 3163 | 3323 | 3483 | 3661 | 3804 | 4062 | 4347 | 4570 | 4713 | 4793 | 5087 | 5497 | 6387 |
Better Fuel Economy Factory Ratios Increased Power
