Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 225/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 25.4 (645.2) | 4.43 (112.5) 21.1% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 65.89 (1673.53) | 79.8 (2026.96) | 13.91 (353.43) 21.1% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 6.2 (157.5) | 2.21 (56.25) 55.6% |
| Revolutions per mile (km) | 961.65 (597.54) | 793.97 (493.35) | -167.68 (-104.19) -17.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.22 mph (38.98 km/h) |
| 25 mph (40.23 km/h) | 30.28 mph (48.73 km/h) |
| 30 mph (48.28 km/h) | 36.34 mph (58.48 km/h) |
| 35 mph (56.33 km/h) | 42.39 mph (68.22 km/h) |
| 40 mph (64.37 km/h) | 48.45 mph (77.97 km/h) |
| 45 mph (72.42 km/h) | 54.5 mph (87.72 km/h) |
| 50 mph (80.47 km/h) | 60.56 mph (97.46 km/h) |
| 55 mph (88.51 km/h) | 66.62 mph (107.21 km/h) |
| 60 mph (96.56 km/h) | 72.67 mph (116.95 km/h) |
| 65 mph (104.61 km/h) | 78.73 mph (126.7 km/h) |
| 70 mph (112.65 km/h) | 84.78 mph (136.45 km/h) |
| 75 mph (120.7 km/h) | 90.84 mph (146.19 km/h) |
| 80 mph (128.75 km/h) | 96.9 mph (155.94 km/h) |
| 85 mph (136.79 km/h) | 102.95 mph (165.68 km/h) |
| 90 mph (144.84 km/h) | 109.01 mph (175.43 km/h) |
| 95 mph (152.89 km/h) | 115.06 mph (185.18 km/h) |
| 100 mph (160.93 km/h) | 121.12 mph (194.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 2347 | 2528 | 2640 | 2760 | 2846 | 2940 | 3052 | 3207 | 3362 | 3534 | 3671 | 3921 | 4196 | 4411 | 4548 | 4626 | 4909 | 5305 | 6165 |
Better Fuel Economy Factory Ratios Increased Power
