Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-15 | 255/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.47 (748.5) | 31.06 (789) | 1.59 (40.5) 5.4% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 92.58 (2351.48) | 97.59 (2478.72) | 5.01 (127.23) 5.4% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.03 (204) | 0.8 (20.25) 11% |
| Revolutions per mile (km) | 684.4 (425.26) | 649.27 (403.43) | -35.13 (-21.83) -5.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.08 mph (33.93 km/h) |
| 25 mph (40.23 km/h) | 26.35 mph (42.41 km/h) |
| 30 mph (48.28 km/h) | 31.62 mph (50.89 km/h) |
| 35 mph (56.33 km/h) | 36.89 mph (59.37 km/h) |
| 40 mph (64.37 km/h) | 42.16 mph (67.86 km/h) |
| 45 mph (72.42 km/h) | 47.43 mph (76.34 km/h) |
| 50 mph (80.47 km/h) | 52.71 mph (84.82 km/h) |
| 55 mph (88.51 km/h) | 57.98 mph (93.3 km/h) |
| 60 mph (96.56 km/h) | 63.25 mph (101.79 km/h) |
| 65 mph (104.61 km/h) | 68.52 mph (110.27 km/h) |
| 70 mph (112.65 km/h) | 73.79 mph (118.75 km/h) |
| 75 mph (120.7 km/h) | 79.06 mph (127.23 km/h) |
| 80 mph (128.75 km/h) | 84.33 mph (135.71 km/h) |
| 85 mph (136.79 km/h) | 89.6 mph (144.2 km/h) |
| 90 mph (144.84 km/h) | 94.87 mph (152.68 km/h) |
| 95 mph (152.89 km/h) | 100.14 mph (161.16 km/h) |
| 100 mph (160.93 km/h) | 105.41 mph (169.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1652 | 1919 | 2067 | 2158 | 2257 | 2327 | 2405 | 2496 | 2623 | 2749 | 2890 | 3002 | 3206 | 3431 | 3607 | 3719 | 3783 | 4015 | 4338 | 5041 |
Better Fuel Economy Factory Ratios Increased Power
