Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/40-15 | 225/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.77 (553) | 22.09 (561) | 0.31 (8) 1.4% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 68.4 (1737.3) | 69.39 (1762.43) | 0.99 (25.13) 1.4% |
| Sidewall Height inches (mm) | 3.39 (86) | 3.54 (90) | 0.16 (4) 4.7% |
| Revolutions per mile (km) | 926.35 (575.6) | 913.14 (567.4) | -13.21 (-8.21) -1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.29 mph (32.65 km/h) |
| 25 mph (40.23 km/h) | 25.36 mph (40.82 km/h) |
| 30 mph (48.28 km/h) | 30.43 mph (48.98 km/h) |
| 35 mph (56.33 km/h) | 35.51 mph (57.14 km/h) |
| 40 mph (64.37 km/h) | 40.58 mph (65.31 km/h) |
| 45 mph (72.42 km/h) | 45.65 mph (73.47 km/h) |
| 50 mph (80.47 km/h) | 50.72 mph (81.63 km/h) |
| 55 mph (88.51 km/h) | 55.8 mph (89.79 km/h) |
| 60 mph (96.56 km/h) | 60.87 mph (97.96 km/h) |
| 65 mph (104.61 km/h) | 65.94 mph (106.12 km/h) |
| 70 mph (112.65 km/h) | 71.01 mph (114.28 km/h) |
| 75 mph (120.7 km/h) | 76.08 mph (122.45 km/h) |
| 80 mph (128.75 km/h) | 81.16 mph (130.61 km/h) |
| 85 mph (136.79 km/h) | 86.23 mph (138.77 km/h) |
| 90 mph (144.84 km/h) | 91.3 mph (146.94 km/h) |
| 95 mph (152.89 km/h) | 96.37 mph (155.1 km/h) |
| 100 mph (160.93 km/h) | 101.45 mph (163.26 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
