Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/65-15 | 215/20-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26 (660.5) | 23.39 (594) | -2.62 (-66.5) -10.1% |
| Width inches (mm) | 8.46 (215) | 8.46 (215) | 0 (0) 0% |
| Circum. inches (mm) | 81.69 (2075.02) | 73.47 (1866.11) | -8.23 (-208.92) -10.1% |
| Sidewall Height inches (mm) | 5.5 (139.75) | 1.69 (43) | -3.81 (-96.75) -69.2% |
| Revolutions per mile (km) | 775.58 (481.92) | 862.41 (535.87) | 86.83 (53.95) 11.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.99 mph (28.95 km/h) |
| 25 mph (40.23 km/h) | 22.48 mph (36.18 km/h) |
| 30 mph (48.28 km/h) | 26.98 mph (43.42 km/h) |
| 35 mph (56.33 km/h) | 31.48 mph (50.66 km/h) |
| 40 mph (64.37 km/h) | 35.97 mph (57.89 km/h) |
| 45 mph (72.42 km/h) | 40.47 mph (65.13 km/h) |
| 50 mph (80.47 km/h) | 44.97 mph (72.37 km/h) |
| 55 mph (88.51 km/h) | 49.46 mph (79.6 km/h) |
| 60 mph (96.56 km/h) | 53.96 mph (86.84 km/h) |
| 65 mph (104.61 km/h) | 58.46 mph (94.08 km/h) |
| 70 mph (112.65 km/h) | 62.95 mph (101.31 km/h) |
| 75 mph (120.7 km/h) | 67.45 mph (108.55 km/h) |
| 80 mph (128.75 km/h) | 71.95 mph (115.79 km/h) |
| 85 mph (136.79 km/h) | 76.44 mph (123.02 km/h) |
| 90 mph (144.84 km/h) | 80.94 mph (130.26 km/h) |
| 95 mph (152.89 km/h) | 85.44 mph (137.5 km/h) |
| 100 mph (160.93 km/h) | 89.93 mph (144.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2195 | 2550 | 2746 | 2867 | 2998 | 3091 | 3194 | 3315 | 3483 | 3652 | 3838 | 3988 | 4259 | 4557 | 4791 | 4940 | 5024 | 5333 | 5762 | 6696 |
Better Fuel Economy Factory Ratios Increased Power
