To convert 16.4 centimeter to inch, multiply by the conversion factor 0.393701. The calculation is 16.4 x 0.393701 = 6.4566964 inch.

16.4 centimeter equals exactly 6.4566964 inch. For practical purposes, this is often rounded to 6.4567 inch.

Objects measuring approximately 16.4 centimeter include the height of a Samsung Galaxy S24 Ultra smartphone (16.23 cm), a 6.5-inch adjustable wrench (16.51 cm length), and a Sharpie King Size permanent marker (16.5 cm length).

Converting centimeter to inch is useful for international collaboration, especially when working with designs or products originating from countries primarily using the imperial system, such as the United States. It is essential for compatibility in manufacturing, construction, and consumer goods where both metric and imperial standards coexist.

A simple memory aid is to remember that 1 centimeter is roughly 0.4 inch. For 16.4 cm, you can estimate by multiplying 16.4 by 0.4, which gives approximately 6.56 inches. Visually, think of the height of a large smartphone or a compact TV remote.