Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/40-15 | 275/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.77 (553) | 23.66 (601) | 1.89 (48) 8.7% |
| Width inches (mm) | 8.46 (215) | 10.83 (275) | 2.36 (60) 27.9% |
| Circum. inches (mm) | 68.4 (1737.3) | 74.33 (1888.1) | 5.94 (150.8) 8.7% |
| Sidewall Height inches (mm) | 3.39 (86) | 4.33 (110) | 0.94 (24) 27.9% |
| Revolutions per mile (km) | 926.35 (575.6) | 852.36 (529.63) | -73.98 (-45.97) -8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.74 mph (34.98 km/h) |
| 25 mph (40.23 km/h) | 27.17 mph (43.73 km/h) |
| 30 mph (48.28 km/h) | 32.6 mph (52.47 km/h) |
| 35 mph (56.33 km/h) | 38.04 mph (61.22 km/h) |
| 40 mph (64.37 km/h) | 43.47 mph (69.96 km/h) |
| 45 mph (72.42 km/h) | 48.91 mph (78.71 km/h) |
| 50 mph (80.47 km/h) | 54.34 mph (87.45 km/h) |
| 55 mph (88.51 km/h) | 59.77 mph (96.2 km/h) |
| 60 mph (96.56 km/h) | 65.21 mph (104.94 km/h) |
| 65 mph (104.61 km/h) | 70.64 mph (113.69 km/h) |
| 70 mph (112.65 km/h) | 76.08 mph (122.43 km/h) |
| 75 mph (120.7 km/h) | 81.51 mph (131.18 km/h) |
| 80 mph (128.75 km/h) | 86.94 mph (139.92 km/h) |
| 85 mph (136.79 km/h) | 92.38 mph (148.67 km/h) |
| 90 mph (144.84 km/h) | 97.81 mph (157.41 km/h) |
| 95 mph (152.89 km/h) | 103.25 mph (166.16 km/h) |
| 100 mph (160.93 km/h) | 108.68 mph (174.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2169 | 2520 | 2714 | 2834 | 2963 | 3055 | 3157 | 3277 | 3443 | 3609 | 3794 | 3941 | 4209 | 4504 | 4735 | 4883 | 4966 | 5270 | 5695 | 6618 |
Better Fuel Economy Factory Ratios Increased Power
