Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/25-19 | 305/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635.1) | 26.2 (665.6) | 1.2 (30.5) 4.8% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 78.55 (1995.23) | 82.32 (2091.04) | 3.77 (95.82) 4.8% |
| Sidewall Height inches (mm) | 3 (76.25) | 3.6 (91.5) | 0.6 (15.25) 20% |
| Revolutions per mile (km) | 806.6 (501.2) | 769.64 (478.23) | -36.96 (-22.97) -4.6% |
305/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.96 mph (33.73 km/h) |
| 25 mph (40.23 km/h) | 26.2 mph (42.17 km/h) |
| 30 mph (48.28 km/h) | 31.44 mph (50.6 km/h) |
| 35 mph (56.33 km/h) | 36.68 mph (59.03 km/h) |
| 40 mph (64.37 km/h) | 41.92 mph (67.47 km/h) |
| 45 mph (72.42 km/h) | 47.16 mph (75.9 km/h) |
| 50 mph (80.47 km/h) | 52.4 mph (84.33 km/h) |
| 55 mph (88.51 km/h) | 57.64 mph (92.76 km/h) |
| 60 mph (96.56 km/h) | 62.88 mph (101.2 km/h) |
| 65 mph (104.61 km/h) | 68.12 mph (109.63 km/h) |
| 70 mph (112.65 km/h) | 73.36 mph (118.06 km/h) |
| 75 mph (120.7 km/h) | 78.6 mph (126.5 km/h) |
| 80 mph (128.75 km/h) | 83.84 mph (134.93 km/h) |
| 85 mph (136.79 km/h) | 89.08 mph (143.36 km/h) |
| 90 mph (144.84 km/h) | 94.32 mph (151.8 km/h) |
| 95 mph (152.89 km/h) | 99.56 mph (160.23 km/h) |
| 100 mph (160.93 km/h) | 104.8 mph (168.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1959 | 2275 | 2450 | 2559 | 2675 | 2759 | 2850 | 2959 | 3109 | 3259 | 3425 | 3559 | 3800 | 4067 | 4276 | 4409 | 4484 | 4759 | 5142 | 5976 |
Better Fuel Economy Factory Ratios Increased Power
