Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/50-15 | 245/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 23.68 (601.5) | -0.18 (-4.5) -0.7% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 74.95 (1903.81) | 74.4 (1889.67) | -0.56 (-14.14) -0.7% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 4.34 (110.25) | -0.09 (-2.25) -2% |
| Revolutions per mile (km) | 845.33 (525.26) | 851.65 (529.19) | 6.32 (3.93) 0.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.95 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.93 km/h) |
| 30 mph (48.28 km/h) | 29.78 mph (47.92 km/h) |
| 35 mph (56.33 km/h) | 34.74 mph (55.91 km/h) |
| 40 mph (64.37 km/h) | 39.7 mph (63.9 km/h) |
| 45 mph (72.42 km/h) | 44.67 mph (71.88 km/h) |
| 50 mph (80.47 km/h) | 49.63 mph (79.87 km/h) |
| 55 mph (88.51 km/h) | 54.59 mph (87.86 km/h) |
| 60 mph (96.56 km/h) | 59.55 mph (95.84 km/h) |
| 65 mph (104.61 km/h) | 64.52 mph (103.83 km/h) |
| 70 mph (112.65 km/h) | 69.48 mph (111.82 km/h) |
| 75 mph (120.7 km/h) | 74.44 mph (119.8 km/h) |
| 80 mph (128.75 km/h) | 79.41 mph (127.79 km/h) |
| 85 mph (136.79 km/h) | 84.37 mph (135.78 km/h) |
| 90 mph (144.84 km/h) | 89.33 mph (143.77 km/h) |
| 95 mph (152.89 km/h) | 94.29 mph (151.75 km/h) |
| 100 mph (160.93 km/h) | 99.26 mph (159.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2167 | 2518 | 2711 | 2831 | 2960 | 3053 | 3154 | 3274 | 3440 | 3606 | 3790 | 3938 | 4205 | 4501 | 4731 | 4879 | 4962 | 5266 | 5690 | 6613 |
Better Fuel Economy Factory Ratios Increased Power
