Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/50-16 | 300/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.45 (646.4) | 29.81 (757.2) | 4.36 (110.8) 17.1% |
| Width inches (mm) | 9.45 (240) | 11.81 (300) | 2.36 (60) 25% |
| Circum. inches (mm) | 79.95 (2030.73) | 93.65 (2378.81) | 13.7 (348.09) 17.1% |
| Sidewall Height inches (mm) | 4.72 (120) | 5.91 (150) | 1.18 (30) 25% |
| Revolutions per mile (km) | 792.5 (492.43) | 676.53 (420.38) | -115.96 (-72.06) -14.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.43 mph (37.7 km/h) |
| 25 mph (40.23 km/h) | 29.29 mph (47.13 km/h) |
| 30 mph (48.28 km/h) | 35.14 mph (56.56 km/h) |
| 35 mph (56.33 km/h) | 41 mph (65.98 km/h) |
| 40 mph (64.37 km/h) | 46.86 mph (75.41 km/h) |
| 45 mph (72.42 km/h) | 52.71 mph (84.83 km/h) |
| 50 mph (80.47 km/h) | 58.57 mph (94.26 km/h) |
| 55 mph (88.51 km/h) | 64.43 mph (103.69 km/h) |
| 60 mph (96.56 km/h) | 70.28 mph (113.11 km/h) |
| 65 mph (104.61 km/h) | 76.14 mph (122.54 km/h) |
| 70 mph (112.65 km/h) | 82 mph (131.96 km/h) |
| 75 mph (120.7 km/h) | 87.86 mph (141.39 km/h) |
| 80 mph (128.75 km/h) | 93.71 mph (150.82 km/h) |
| 85 mph (136.79 km/h) | 99.57 mph (160.24 km/h) |
| 90 mph (144.84 km/h) | 105.43 mph (169.67 km/h) |
| 95 mph (152.89 km/h) | 111.28 mph (179.09 km/h) |
| 100 mph (160.93 km/h) | 117.14 mph (188.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1722 | 2000 | 2154 | 2249 | 2352 | 2425 | 2506 | 2601 | 2733 | 2865 | 3011 | 3128 | 3341 | 3575 | 3758 | 3876 | 3941 | 4183 | 4520 | 5253 |
Better Fuel Economy Factory Ratios Increased Power
