Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-15 | 245/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.4 (696) | 27.54 (699.5) | 0.14 (3.5) 0.5% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 86.08 (2186.55) | 86.52 (2197.54) | 0.43 (11) 0.5% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 6.27 (159.25) | 0.07 (1.75) 1.1% |
| Revolutions per mile (km) | 736.02 (457.34) | 732.34 (455.05) | -3.68 (-2.29) -0.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.1 mph (32.35 km/h) |
| 25 mph (40.23 km/h) | 25.13 mph (40.44 km/h) |
| 30 mph (48.28 km/h) | 30.15 mph (48.52 km/h) |
| 35 mph (56.33 km/h) | 35.18 mph (56.61 km/h) |
| 40 mph (64.37 km/h) | 40.2 mph (64.7 km/h) |
| 45 mph (72.42 km/h) | 45.23 mph (72.78 km/h) |
| 50 mph (80.47 km/h) | 50.25 mph (80.87 km/h) |
| 55 mph (88.51 km/h) | 55.28 mph (88.96 km/h) |
| 60 mph (96.56 km/h) | 60.3 mph (97.05 km/h) |
| 65 mph (104.61 km/h) | 65.33 mph (105.13 km/h) |
| 70 mph (112.65 km/h) | 70.35 mph (113.22 km/h) |
| 75 mph (120.7 km/h) | 75.38 mph (121.31 km/h) |
| 80 mph (128.75 km/h) | 80.4 mph (129.4 km/h) |
| 85 mph (136.79 km/h) | 85.43 mph (137.48 km/h) |
| 90 mph (144.84 km/h) | 90.45 mph (145.57 km/h) |
| 95 mph (152.89 km/h) | 95.48 mph (153.66 km/h) |
| 100 mph (160.93 km/h) | 100.5 mph (161.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1864 | 2165 | 2332 | 2435 | 2546 | 2625 | 2712 | 2815 | 2958 | 3101 | 3259 | 3386 | 3616 | 3870 | 4068 | 4195 | 4267 | 4528 | 4893 | 5686 |
Better Fuel Economy Factory Ratios Increased Power
