Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-15 | 265/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.68 (601.5) | 25.43 (646) | 1.75 (44.5) 7.4% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 74.4 (1889.67) | 79.9 (2029.47) | 5.5 (139.8) 7.4% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 5.22 (132.5) | 0.88 (22.25) 20.2% |
| Revolutions per mile (km) | 851.65 (529.19) | 792.99 (492.74) | -58.67 (-36.45) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.48 mph (34.57 km/h) |
| 25 mph (40.23 km/h) | 26.85 mph (43.21 km/h) |
| 30 mph (48.28 km/h) | 32.22 mph (51.85 km/h) |
| 35 mph (56.33 km/h) | 37.59 mph (60.49 km/h) |
| 40 mph (64.37 km/h) | 42.96 mph (69.14 km/h) |
| 45 mph (72.42 km/h) | 48.33 mph (77.78 km/h) |
| 50 mph (80.47 km/h) | 53.7 mph (86.42 km/h) |
| 55 mph (88.51 km/h) | 59.07 mph (95.06 km/h) |
| 60 mph (96.56 km/h) | 64.44 mph (103.7 km/h) |
| 65 mph (104.61 km/h) | 69.81 mph (112.35 km/h) |
| 70 mph (112.65 km/h) | 75.18 mph (120.99 km/h) |
| 75 mph (120.7 km/h) | 80.55 mph (129.63 km/h) |
| 80 mph (128.75 km/h) | 85.92 mph (138.27 km/h) |
| 85 mph (136.79 km/h) | 91.29 mph (146.91 km/h) |
| 90 mph (144.84 km/h) | 96.66 mph (155.56 km/h) |
| 95 mph (152.89 km/h) | 102.03 mph (164.2 km/h) |
| 100 mph (160.93 km/h) | 107.4 mph (172.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 2344 | 2525 | 2636 | 2757 | 2842 | 2937 | 3048 | 3203 | 3358 | 3529 | 3667 | 3916 | 4191 | 4405 | 4543 | 4620 | 4903 | 5298 | 6157 |
Better Fuel Economy Factory Ratios Increased Power
