Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/30-14 | 215/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.31 (490.6) | 21.77 (553) | 2.46 (62.4) 12.7% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 60.68 (1541.27) | 68.4 (1737.3) | 7.72 (196.04) 12.7% |
| Sidewall Height inches (mm) | 2.66 (67.5) | 3.39 (86) | 0.73 (18.5) 27.4% |
| Revolutions per mile (km) | 1044.17 (648.82) | 926.35 (575.6) | -117.82 (-73.21) -11.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.54 mph (36.28 km/h) |
| 25 mph (40.23 km/h) | 28.18 mph (45.35 km/h) |
| 30 mph (48.28 km/h) | 33.82 mph (54.42 km/h) |
| 35 mph (56.33 km/h) | 39.45 mph (63.49 km/h) |
| 40 mph (64.37 km/h) | 45.09 mph (72.56 km/h) |
| 45 mph (72.42 km/h) | 50.72 mph (81.63 km/h) |
| 50 mph (80.47 km/h) | 56.36 mph (90.7 km/h) |
| 55 mph (88.51 km/h) | 62 mph (99.77 km/h) |
| 60 mph (96.56 km/h) | 67.63 mph (108.84 km/h) |
| 65 mph (104.61 km/h) | 73.27 mph (117.91 km/h) |
| 70 mph (112.65 km/h) | 78.9 mph (126.98 km/h) |
| 75 mph (120.7 km/h) | 84.54 mph (136.05 km/h) |
| 80 mph (128.75 km/h) | 90.18 mph (145.12 km/h) |
| 85 mph (136.79 km/h) | 95.81 mph (154.19 km/h) |
| 90 mph (144.84 km/h) | 101.45 mph (163.26 km/h) |
| 95 mph (152.89 km/h) | 107.08 mph (172.33 km/h) |
| 100 mph (160.93 km/h) | 112.72 mph (181.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
