Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 375/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 32.76 (832.2) | 7.56 (192.1) 30% |
| Width inches (mm) | 12.4 (315) | 14.76 (375) | 2.36 (60) 19% |
| Circum. inches (mm) | 79.17 (2010.93) | 102.93 (2614.43) | 23.76 (603.5) 30% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 7.38 (187.5) | 4.28 (108.75) 138.1% |
| Revolutions per mile (km) | 800.3 (497.28) | 615.56 (382.49) | -184.74 (-114.79) -23.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26 mph (41.85 km/h) |
| 25 mph (40.23 km/h) | 32.5 mph (52.31 km/h) |
| 30 mph (48.28 km/h) | 39 mph (62.77 km/h) |
| 35 mph (56.33 km/h) | 45.5 mph (73.23 km/h) |
| 40 mph (64.37 km/h) | 52 mph (83.69 km/h) |
| 45 mph (72.42 km/h) | 58.5 mph (94.15 km/h) |
| 50 mph (80.47 km/h) | 65.01 mph (104.62 km/h) |
| 55 mph (88.51 km/h) | 71.51 mph (115.08 km/h) |
| 60 mph (96.56 km/h) | 78.01 mph (125.54 km/h) |
| 65 mph (104.61 km/h) | 84.51 mph (136 km/h) |
| 70 mph (112.65 km/h) | 91.01 mph (146.46 km/h) |
| 75 mph (120.7 km/h) | 97.51 mph (156.92 km/h) |
| 80 mph (128.75 km/h) | 104.01 mph (167.39 km/h) |
| 85 mph (136.79 km/h) | 110.51 mph (177.85 km/h) |
| 90 mph (144.84 km/h) | 117.01 mph (188.31 km/h) |
| 95 mph (152.89 km/h) | 123.51 mph (198.77 km/h) |
| 100 mph (160.93 km/h) | 130.01 mph (209.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1566 | 1820 | 1960 | 2046 | 2140 | 2206 | 2280 | 2366 | 2486 | 2606 | 2740 | 2846 | 3040 | 3253 | 3420 | 3526 | 3586 | 3806 | 4113 | 4779 |
Better Fuel Economy Factory Ratios Increased Power
