Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-14 | 255/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.5 (698.6) | 29.06 (738) | 1.55 (39.4) 5.6% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 86.41 (2194.72) | 91.28 (2318.5) | 4.87 (123.78) 5.6% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.03 (178.5) | 0.28 (7) 4.1% |
| Revolutions per mile (km) | 733.28 (455.64) | 694.13 (431.31) | -39.15 (-24.33) -5.3% |
255/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.13 mph (34 km/h) |
| 25 mph (40.23 km/h) | 26.41 mph (42.5 km/h) |
| 30 mph (48.28 km/h) | 31.69 mph (51 km/h) |
| 35 mph (56.33 km/h) | 36.97 mph (59.5 km/h) |
| 40 mph (64.37 km/h) | 42.26 mph (68 km/h) |
| 45 mph (72.42 km/h) | 47.54 mph (76.51 km/h) |
| 50 mph (80.47 km/h) | 52.82 mph (85.01 km/h) |
| 55 mph (88.51 km/h) | 58.1 mph (93.51 km/h) |
| 60 mph (96.56 km/h) | 63.38 mph (102.01 km/h) |
| 65 mph (104.61 km/h) | 68.67 mph (110.51 km/h) |
| 70 mph (112.65 km/h) | 73.95 mph (119.01 km/h) |
| 75 mph (120.7 km/h) | 79.23 mph (127.51 km/h) |
| 80 mph (128.75 km/h) | 84.51 mph (136.01 km/h) |
| 85 mph (136.79 km/h) | 89.79 mph (144.51 km/h) |
| 90 mph (144.84 km/h) | 95.08 mph (153.01 km/h) |
| 95 mph (152.89 km/h) | 100.36 mph (161.51 km/h) |
| 100 mph (160.93 km/h) | 105.64 mph (170.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1766 | 2052 | 2210 | 2308 | 2413 | 2488 | 2571 | 2668 | 2804 | 2939 | 3089 | 3210 | 3428 | 3668 | 3856 | 3976 | 4044 | 4292 | 4638 | 5390 |
Better Fuel Economy Factory Ratios Increased Power
