Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/45-15 | 225/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.62 (574.5) | 22.09 (561) | -0.53 (-13.5) -2.3% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 71.06 (1804.84) | 69.39 (1762.43) | -1.67 (-42.41) -2.3% |
| Sidewall Height inches (mm) | 3.81 (96.75) | 3.54 (90) | -0.27 (-6.75) -7% |
| Revolutions per mile (km) | 891.68 (554.06) | 913.14 (567.4) | 21.46 (13.33) 2.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.43 km/h) |
| 25 mph (40.23 km/h) | 24.41 mph (39.29 km/h) |
| 30 mph (48.28 km/h) | 29.3 mph (47.15 km/h) |
| 35 mph (56.33 km/h) | 34.18 mph (55 km/h) |
| 40 mph (64.37 km/h) | 39.06 mph (62.86 km/h) |
| 45 mph (72.42 km/h) | 43.94 mph (70.72 km/h) |
| 50 mph (80.47 km/h) | 48.83 mph (78.58 km/h) |
| 55 mph (88.51 km/h) | 53.71 mph (86.43 km/h) |
| 60 mph (96.56 km/h) | 58.59 mph (94.29 km/h) |
| 65 mph (104.61 km/h) | 63.47 mph (102.15 km/h) |
| 70 mph (112.65 km/h) | 68.36 mph (110.01 km/h) |
| 75 mph (120.7 km/h) | 73.24 mph (117.86 km/h) |
| 80 mph (128.75 km/h) | 78.12 mph (125.72 km/h) |
| 85 mph (136.79 km/h) | 83 mph (133.58 km/h) |
| 90 mph (144.84 km/h) | 87.89 mph (141.44 km/h) |
| 95 mph (152.89 km/h) | 92.77 mph (149.3 km/h) |
| 100 mph (160.93 km/h) | 97.65 mph (157.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2324 | 2700 | 2907 | 3036 | 3174 | 3273 | 3382 | 3510 | 3688 | 3866 | 4064 | 4222 | 4509 | 4826 | 5073 | 5231 | 5320 | 5646 | 6101 | 7090 |
Better Fuel Economy Factory Ratios Increased Power
