Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-19 | 245/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 26.72 (678.6) | 0.16 (4) 0.6% |
| Width inches (mm) | 9.45 (240) | 9.65 (245) | 0.2 (5) 2.1% |
| Circum. inches (mm) | 83.44 (2119.32) | 83.93 (2131.88) | 0.49 (12.57) 0.6% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.86 (98) | 0.08 (2) 2.1% |
| Revolutions per mile (km) | 759.37 (471.85) | 754.89 (469.07) | -4.48 (-2.78) -0.6% |
245/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.12 mph (32.38 km/h) |
| 25 mph (40.23 km/h) | 25.15 mph (40.47 km/h) |
| 30 mph (48.28 km/h) | 30.18 mph (48.57 km/h) |
| 35 mph (56.33 km/h) | 35.21 mph (56.66 km/h) |
| 40 mph (64.37 km/h) | 40.24 mph (64.76 km/h) |
| 45 mph (72.42 km/h) | 45.27 mph (72.85 km/h) |
| 50 mph (80.47 km/h) | 50.3 mph (80.94 km/h) |
| 55 mph (88.51 km/h) | 55.33 mph (89.04 km/h) |
| 60 mph (96.56 km/h) | 60.36 mph (97.13 km/h) |
| 65 mph (104.61 km/h) | 65.39 mph (105.23 km/h) |
| 70 mph (112.65 km/h) | 70.42 mph (113.32 km/h) |
| 75 mph (120.7 km/h) | 75.44 mph (121.42 km/h) |
| 80 mph (128.75 km/h) | 80.47 mph (129.51 km/h) |
| 85 mph (136.79 km/h) | 85.5 mph (137.61 km/h) |
| 90 mph (144.84 km/h) | 90.53 mph (145.7 km/h) |
| 95 mph (152.89 km/h) | 95.56 mph (153.79 km/h) |
| 100 mph (160.93 km/h) | 100.59 mph (161.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1921 | 2232 | 2403 | 2510 | 2624 | 2706 | 2796 | 2902 | 3049 | 3196 | 3360 | 3491 | 3728 | 3989 | 4194 | 4324 | 4398 | 4668 | 5044 | 5861 |
Better Fuel Economy Factory Ratios Increased Power
