Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/25-19 | 245/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635.1) | 26.72 (678.6) | 1.71 (43.5) 6.8% |
| Width inches (mm) | 12.01 (305) | 9.65 (245) | -2.36 (-60) -19.7% |
| Circum. inches (mm) | 78.55 (1995.23) | 83.93 (2131.88) | 5.38 (136.66) 6.8% |
| Sidewall Height inches (mm) | 3 (76.25) | 3.86 (98) | 0.86 (21.75) 28.5% |
| Revolutions per mile (km) | 806.6 (501.2) | 754.89 (469.07) | -51.7 (-32.13) -6.4% |
245/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.37 mph (34.39 km/h) |
| 25 mph (40.23 km/h) | 26.71 mph (42.99 km/h) |
| 30 mph (48.28 km/h) | 32.05 mph (51.59 km/h) |
| 35 mph (56.33 km/h) | 37.4 mph (60.19 km/h) |
| 40 mph (64.37 km/h) | 42.74 mph (68.78 km/h) |
| 45 mph (72.42 km/h) | 48.08 mph (77.38 km/h) |
| 50 mph (80.47 km/h) | 53.42 mph (85.98 km/h) |
| 55 mph (88.51 km/h) | 58.77 mph (94.58 km/h) |
| 60 mph (96.56 km/h) | 64.11 mph (103.17 km/h) |
| 65 mph (104.61 km/h) | 69.45 mph (111.77 km/h) |
| 70 mph (112.65 km/h) | 74.79 mph (120.37 km/h) |
| 75 mph (120.7 km/h) | 80.14 mph (128.97 km/h) |
| 80 mph (128.75 km/h) | 85.48 mph (137.57 km/h) |
| 85 mph (136.79 km/h) | 90.82 mph (146.16 km/h) |
| 90 mph (144.84 km/h) | 96.16 mph (154.76 km/h) |
| 95 mph (152.89 km/h) | 101.51 mph (163.36 km/h) |
| 100 mph (160.93 km/h) | 106.85 mph (171.96 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 |
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