Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-16 | 315/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.4) | 35.84 (910.4) | 3.78 (96) 11.8% |
| Width inches (mm) | 10.04 (255) | 12.4 (315) | 2.36 (60) 23.5% |
| Circum. inches (mm) | 100.73 (2558.51) | 112.6 (2860.11) | 11.87 (301.59) 11.8% |
| Sidewall Height inches (mm) | 8.03 (204) | 9.92 (252) | 1.89 (48) 23.5% |
| Revolutions per mile (km) | 629.02 (390.85) | 562.69 (349.64) | -66.33 (-41.21) -10.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.36 mph (35.98 km/h) |
| 25 mph (40.23 km/h) | 27.95 mph (44.98 km/h) |
| 30 mph (48.28 km/h) | 33.54 mph (53.97 km/h) |
| 35 mph (56.33 km/h) | 39.13 mph (62.97 km/h) |
| 40 mph (64.37 km/h) | 44.72 mph (71.96 km/h) |
| 45 mph (72.42 km/h) | 50.3 mph (80.96 km/h) |
| 50 mph (80.47 km/h) | 55.89 mph (89.95 km/h) |
| 55 mph (88.51 km/h) | 61.48 mph (98.95 km/h) |
| 60 mph (96.56 km/h) | 67.07 mph (107.94 km/h) |
| 65 mph (104.61 km/h) | 72.66 mph (116.94 km/h) |
| 70 mph (112.65 km/h) | 78.25 mph (125.93 km/h) |
| 75 mph (120.7 km/h) | 83.84 mph (134.93 km/h) |
| 80 mph (128.75 km/h) | 89.43 mph (143.92 km/h) |
| 85 mph (136.79 km/h) | 95.02 mph (152.92 km/h) |
| 90 mph (144.84 km/h) | 100.61 mph (161.91 km/h) |
| 95 mph (152.89 km/h) | 106.2 mph (170.91 km/h) |
| 100 mph (160.93 km/h) | 111.79 mph (179.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1432 | 1663 | 1791 | 1871 | 1956 | 2017 | 2084 | 2163 | 2273 | 2382 | 2504 | 2602 | 2779 | 2974 | 3126 | 3223 | 3278 | 3479 | 3760 | 4369 |
Better Fuel Economy Factory Ratios Increased Power
