Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 245/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 30.43 (773) | 1.26 (32) 4.3% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 91.65 (2327.92) | 95.61 (2428.45) | 3.96 (100.53) 4.3% |
| Sidewall Height inches (mm) | 7.09 (180) | 7.72 (196) | 0.63 (16) 8.9% |
| Revolutions per mile (km) | 691.32 (429.57) | 662.7 (411.78) | -28.62 (-17.78) -4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.86 mph (33.58 km/h) |
| 25 mph (40.23 km/h) | 26.08 mph (41.97 km/h) |
| 30 mph (48.28 km/h) | 31.3 mph (50.37 km/h) |
| 35 mph (56.33 km/h) | 36.51 mph (58.76 km/h) |
| 40 mph (64.37 km/h) | 41.73 mph (67.15 km/h) |
| 45 mph (72.42 km/h) | 46.94 mph (75.55 km/h) |
| 50 mph (80.47 km/h) | 52.16 mph (83.94 km/h) |
| 55 mph (88.51 km/h) | 57.38 mph (92.34 km/h) |
| 60 mph (96.56 km/h) | 62.59 mph (100.73 km/h) |
| 65 mph (104.61 km/h) | 67.81 mph (109.13 km/h) |
| 70 mph (112.65 km/h) | 73.02 mph (117.52 km/h) |
| 75 mph (120.7 km/h) | 78.24 mph (125.91 km/h) |
| 80 mph (128.75 km/h) | 83.45 mph (134.31 km/h) |
| 85 mph (136.79 km/h) | 88.67 mph (142.7 km/h) |
| 90 mph (144.84 km/h) | 93.89 mph (151.1 km/h) |
| 95 mph (152.89 km/h) | 99.1 mph (159.49 km/h) |
| 100 mph (160.93 km/h) | 104.32 mph (167.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1686 | 1959 | 2110 | 2203 | 2304 | 2375 | 2454 | 2548 | 2677 | 2806 | 2950 | 3064 | 3272 | 3502 | 3681 | 3796 | 3861 | 4098 | 4428 | 5145 |
Better Fuel Economy Factory Ratios Increased Power
