Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-19 | 305/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.4 (797.6) | 36.31 (922.3) | 4.91 (124.7) 15.6% |
| Width inches (mm) | 8.86 (225) | 12.01 (305) | 3.15 (80) 35.6% |
| Circum. inches (mm) | 98.65 (2505.73) | 114.07 (2897.49) | 15.42 (391.76) 15.6% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 8.41 (213.5) | 2.2 (56) 35.6% |
| Revolutions per mile (km) | 642.26 (399.08) | 555.43 (345.13) | -86.84 (-53.96) -13.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.13 mph (37.22 km/h) |
| 25 mph (40.23 km/h) | 28.91 mph (46.52 km/h) |
| 30 mph (48.28 km/h) | 34.69 mph (55.83 km/h) |
| 35 mph (56.33 km/h) | 40.47 mph (65.13 km/h) |
| 40 mph (64.37 km/h) | 46.25 mph (74.44 km/h) |
| 45 mph (72.42 km/h) | 52.04 mph (83.74 km/h) |
| 50 mph (80.47 km/h) | 57.82 mph (93.05 km/h) |
| 55 mph (88.51 km/h) | 63.6 mph (102.35 km/h) |
| 60 mph (96.56 km/h) | 69.38 mph (111.66 km/h) |
| 65 mph (104.61 km/h) | 75.16 mph (120.96 km/h) |
| 70 mph (112.65 km/h) | 80.94 mph (130.27 km/h) |
| 75 mph (120.7 km/h) | 86.73 mph (139.57 km/h) |
| 80 mph (128.75 km/h) | 92.51 mph (148.88 km/h) |
| 85 mph (136.79 km/h) | 98.29 mph (158.18 km/h) |
| 90 mph (144.84 km/h) | 104.07 mph (167.49 km/h) |
| 95 mph (152.89 km/h) | 109.85 mph (176.79 km/h) |
| 100 mph (160.93 km/h) | 115.63 mph (186.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1413 | 1642 | 1768 | 1847 | 1931 | 1991 | 2057 | 2135 | 2243 | 2352 | 2472 | 2568 | 2743 | 2935 | 3086 | 3182 | 3236 | 3434 | 3711 | 4313 |
Better Fuel Economy Factory Ratios Increased Power
