Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-16 | 350/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.84 (910.4) | 42.05 (1068) | 6.2 (157.6) 17.3% |
| Width inches (mm) | 12.4 (315) | 13.78 (350) | 1.38 (35) 11.1% |
| Circum. inches (mm) | 112.6 (2860.11) | 132.1 (3355.22) | 19.49 (495.12) 17.3% |
| Sidewall Height inches (mm) | 9.92 (252) | 11.02 (280) | 1.1 (28) 11.1% |
| Revolutions per mile (km) | 562.69 (349.64) | 479.65 (298.04) | -83.03 (-51.59) -14.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.46 mph (37.76 km/h) |
| 25 mph (40.23 km/h) | 29.33 mph (47.2 km/h) |
| 30 mph (48.28 km/h) | 35.19 mph (56.64 km/h) |
| 35 mph (56.33 km/h) | 41.06 mph (66.08 km/h) |
| 40 mph (64.37 km/h) | 46.92 mph (75.52 km/h) |
| 45 mph (72.42 km/h) | 52.79 mph (84.96 km/h) |
| 50 mph (80.47 km/h) | 58.66 mph (94.4 km/h) |
| 55 mph (88.51 km/h) | 64.52 mph (103.84 km/h) |
| 60 mph (96.56 km/h) | 70.39 mph (113.28 km/h) |
| 65 mph (104.61 km/h) | 76.25 mph (122.72 km/h) |
| 70 mph (112.65 km/h) | 82.12 mph (132.16 km/h) |
| 75 mph (120.7 km/h) | 87.98 mph (141.6 km/h) |
| 80 mph (128.75 km/h) | 93.85 mph (151.04 km/h) |
| 85 mph (136.79 km/h) | 99.71 mph (160.48 km/h) |
| 90 mph (144.84 km/h) | 105.58 mph (169.91 km/h) |
| 95 mph (152.89 km/h) | 111.45 mph (179.35 km/h) |
| 100 mph (160.93 km/h) | 117.31 mph (188.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1221 | 1418 | 1527 | 1595 | 1667 | 1719 | 1776 | 1844 | 1937 | 2031 | 2135 | 2218 | 2369 | 2535 | 2665 | 2748 | 2794 | 2966 | 3205 | 3724 |
Better Fuel Economy Factory Ratios Increased Power
