Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-15 | 215/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.54 (725) | 30.24 (768) | 1.69 (43) 5.9% |
| Width inches (mm) | 8.46 (215) | 8.46 (215) | 0 (0) 0% |
| Circum. inches (mm) | 89.67 (2277.65) | 94.99 (2412.74) | 5.32 (135.09) 5.9% |
| Sidewall Height inches (mm) | 6.77 (172) | 7.62 (193.5) | 0.85 (21.5) 12.5% |
| Revolutions per mile (km) | 706.58 (439.05) | 667.02 (414.47) | -39.56 (-24.58) -5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.19 mph (34.1 km/h) |
| 25 mph (40.23 km/h) | 26.48 mph (42.62 km/h) |
| 30 mph (48.28 km/h) | 31.78 mph (51.14 km/h) |
| 35 mph (56.33 km/h) | 37.08 mph (59.67 km/h) |
| 40 mph (64.37 km/h) | 42.37 mph (68.19 km/h) |
| 45 mph (72.42 km/h) | 47.67 mph (76.72 km/h) |
| 50 mph (80.47 km/h) | 52.97 mph (85.24 km/h) |
| 55 mph (88.51 km/h) | 58.26 mph (93.76 km/h) |
| 60 mph (96.56 km/h) | 63.56 mph (102.29 km/h) |
| 65 mph (104.61 km/h) | 68.86 mph (110.81 km/h) |
| 70 mph (112.65 km/h) | 74.15 mph (119.34 km/h) |
| 75 mph (120.7 km/h) | 79.45 mph (127.86 km/h) |
| 80 mph (128.75 km/h) | 84.74 mph (136.38 km/h) |
| 85 mph (136.79 km/h) | 90.04 mph (144.91 km/h) |
| 90 mph (144.84 km/h) | 95.34 mph (153.43 km/h) |
| 95 mph (152.89 km/h) | 100.63 mph (161.96 km/h) |
| 100 mph (160.93 km/h) | 105.93 mph (170.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1697 | 1972 | 2124 | 2217 | 2319 | 2391 | 2470 | 2564 | 2694 | 2824 | 2969 | 3084 | 3294 | 3525 | 3705 | 3821 | 3886 | 4124 | 4457 | 5179 |
Better Fuel Economy Factory Ratios Increased Power
