Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-16 | 345/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.4) | 33.66 (854.9) | 1.59 (40.5) 5% |
| Width inches (mm) | 10.04 (255) | 13.58 (345) | 3.54 (90) 35.3% |
| Circum. inches (mm) | 100.73 (2558.51) | 105.74 (2685.75) | 5.01 (127.23) 5% |
| Sidewall Height inches (mm) | 8.03 (204) | 8.83 (224.25) | 0.8 (20.25) 9.9% |
| Revolutions per mile (km) | 629.02 (390.85) | 599.22 (372.34) | -29.8 (-18.52) -4.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.99 mph (33.79 km/h) |
| 25 mph (40.23 km/h) | 26.24 mph (42.23 km/h) |
| 30 mph (48.28 km/h) | 31.49 mph (50.68 km/h) |
| 35 mph (56.33 km/h) | 36.74 mph (59.13 km/h) |
| 40 mph (64.37 km/h) | 41.99 mph (67.58 km/h) |
| 45 mph (72.42 km/h) | 47.24 mph (76.02 km/h) |
| 50 mph (80.47 km/h) | 52.49 mph (84.47 km/h) |
| 55 mph (88.51 km/h) | 57.74 mph (92.92 km/h) |
| 60 mph (96.56 km/h) | 62.98 mph (101.36 km/h) |
| 65 mph (104.61 km/h) | 68.23 mph (109.81 km/h) |
| 70 mph (112.65 km/h) | 73.48 mph (118.26 km/h) |
| 75 mph (120.7 km/h) | 78.73 mph (126.7 km/h) |
| 80 mph (128.75 km/h) | 83.98 mph (135.15 km/h) |
| 85 mph (136.79 km/h) | 89.23 mph (143.6 km/h) |
| 90 mph (144.84 km/h) | 94.48 mph (152.04 km/h) |
| 95 mph (152.89 km/h) | 99.72 mph (160.49 km/h) |
| 100 mph (160.93 km/h) | 104.97 mph (168.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1525 | 1771 | 1908 | 1992 | 2083 | 2148 | 2219 | 2304 | 2420 | 2537 | 2667 | 2771 | 2959 | 3167 | 3329 | 3433 | 3491 | 3705 | 4004 | 4653 |
Better Fuel Economy Factory Ratios Increased Power
