Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 255/50-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 23.04 (585.2) | 2.07 (52.5) 9.9% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 65.89 (1673.53) | 72.38 (1838.46) | 6.49 (164.93) 9.9% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.02 (127.5) | 1.03 (26.25) 25.9% |
| Revolutions per mile (km) | 961.65 (597.54) | 875.38 (543.93) | -86.27 (-53.61) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.97 mph (35.36 km/h) |
| 25 mph (40.23 km/h) | 27.46 mph (44.2 km/h) |
| 30 mph (48.28 km/h) | 32.96 mph (53.04 km/h) |
| 35 mph (56.33 km/h) | 38.45 mph (61.88 km/h) |
| 40 mph (64.37 km/h) | 43.94 mph (70.72 km/h) |
| 45 mph (72.42 km/h) | 49.43 mph (79.56 km/h) |
| 50 mph (80.47 km/h) | 54.93 mph (88.4 km/h) |
| 55 mph (88.51 km/h) | 60.42 mph (97.24 km/h) |
| 60 mph (96.56 km/h) | 65.91 mph (106.08 km/h) |
| 65 mph (104.61 km/h) | 71.41 mph (114.92 km/h) |
| 70 mph (112.65 km/h) | 76.9 mph (123.76 km/h) |
| 75 mph (120.7 km/h) | 82.39 mph (132.6 km/h) |
| 80 mph (128.75 km/h) | 87.88 mph (141.44 km/h) |
| 85 mph (136.79 km/h) | 93.38 mph (150.28 km/h) |
| 90 mph (144.84 km/h) | 98.87 mph (159.12 km/h) |
| 95 mph (152.89 km/h) | 104.36 mph (167.96 km/h) |
| 100 mph (160.93 km/h) | 109.86 mph (176.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | 2588 | 2787 | 2910 | 3043 | 3138 | 3242 | 3365 | 3536 | 3706 | 3896 | 4048 | 4323 | 4626 | 4863 | 5015 | 5100 | 5413 | 5849 | 6797 |
Better Fuel Economy Factory Ratios Increased Power
