Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 215/78-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 28.2 (716.4) | 2.55 (64.8) 9.9% |
| Width inches (mm) | 6.5 (165) | 8.46 (215) | 1.97 (50) 30.3% |
| Circum. inches (mm) | 80.59 (2047.06) | 88.61 (2250.64) | 8.01 (203.58) 9.9% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 6.6 (167.7) | 1.28 (32.4) 23.9% |
| Revolutions per mile (km) | 786.17 (488.5) | 715.06 (444.32) | -71.11 (-44.19) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.99 mph (35.39 km/h) |
| 25 mph (40.23 km/h) | 27.49 mph (44.23 km/h) |
| 30 mph (48.28 km/h) | 32.98 mph (53.08 km/h) |
| 35 mph (56.33 km/h) | 38.48 mph (61.93 km/h) |
| 40 mph (64.37 km/h) | 43.98 mph (70.78 km/h) |
| 45 mph (72.42 km/h) | 49.48 mph (79.62 km/h) |
| 50 mph (80.47 km/h) | 54.97 mph (88.47 km/h) |
| 55 mph (88.51 km/h) | 60.47 mph (97.32 km/h) |
| 60 mph (96.56 km/h) | 65.97 mph (106.16 km/h) |
| 65 mph (104.61 km/h) | 71.46 mph (115.01 km/h) |
| 70 mph (112.65 km/h) | 76.96 mph (123.86 km/h) |
| 75 mph (120.7 km/h) | 82.46 mph (132.7 km/h) |
| 80 mph (128.75 km/h) | 87.96 mph (141.55 km/h) |
| 85 mph (136.79 km/h) | 93.45 mph (150.4 km/h) |
| 90 mph (144.84 km/h) | 98.95 mph (159.25 km/h) |
| 95 mph (152.89 km/h) | 104.45 mph (168.09 km/h) |
| 100 mph (160.93 km/h) | 109.94 mph (176.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1820 | 2114 | 2277 | 2377 | 2486 | 2563 | 2648 | 2749 | 2888 | 3028 | 3183 | 3306 | 3531 | 3779 | 3972 | 4096 | 4166 | 4421 | 4778 | 5552 |
Better Fuel Economy Factory Ratios Increased Power
