8 inches is exactly 20.32 cm, or 0.67 feet. It’s roughly the length of a chef’s knife blade, or close ...

5 inches is exactly 12.7 centimeters, or 0.417 feet. It’s roughly the length of a standard 3×5 index card, or ...

6 inches is exactly 15.24 centimeters, or 0.5 feet. It’s roughly the length of a US dollar bill, or close ...