Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/45-15 | 215/20-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.62 (574.5) | 18.39 (467) | -4.23 (-107.5) -18.7% |
| Width inches (mm) | 8.46 (215) | 8.46 (215) | 0 (0) 0% |
| Circum. inches (mm) | 71.06 (1804.84) | 57.76 (1467.12) | -13.3 (-337.72) -18.7% |
| Sidewall Height inches (mm) | 3.81 (96.75) | 1.69 (43) | -2.12 (-53.75) -55.6% |
| Revolutions per mile (km) | 891.68 (554.06) | 1096.94 (681.6) | 205.26 (127.54) 23% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.26 mph (26.16 km/h) |
| 25 mph (40.23 km/h) | 20.32 mph (32.71 km/h) |
| 30 mph (48.28 km/h) | 24.39 mph (39.25 km/h) |
| 35 mph (56.33 km/h) | 28.45 mph (45.79 km/h) |
| 40 mph (64.37 km/h) | 32.52 mph (52.33 km/h) |
| 45 mph (72.42 km/h) | 36.58 mph (58.87 km/h) |
| 50 mph (80.47 km/h) | 40.64 mph (65.41 km/h) |
| 55 mph (88.51 km/h) | 44.71 mph (71.95 km/h) |
| 60 mph (96.56 km/h) | 48.77 mph (78.49 km/h) |
| 65 mph (104.61 km/h) | 52.84 mph (85.03 km/h) |
| 70 mph (112.65 km/h) | 56.9 mph (91.57 km/h) |
| 75 mph (120.7 km/h) | 60.97 mph (98.12 km/h) |
| 80 mph (128.75 km/h) | 65.03 mph (104.66 km/h) |
| 85 mph (136.79 km/h) | 69.09 mph (111.2 km/h) |
| 90 mph (144.84 km/h) | 73.16 mph (117.74 km/h) |
| 95 mph (152.89 km/h) | 77.22 mph (124.28 km/h) |
| 100 mph (160.93 km/h) | 81.29 mph (130.82 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
