To convert 42 centimeter to inch, multiply 42 by the conversion factor 0.393701. The calculation is 42 x 0.393701 = 16.5354 inch.

42 centimeter equals exactly 16.535433 inch. For most practical purposes, this is commonly rounded to 16.5354 inch.

Objects measuring approximately 42 centimeter include a 16.5-inch portable monitor screen diagonal (41.91 cm), the width of an A2 paper sheet (42.0 cm), and a 16.5-inch large pizza box (41.91 cm).

Converting centimeter to inch is useful for international trade, engineering specifications, and when working with products or designs originating from countries primarily using the imperial system, such as the United States. It ensures compatibility and clear communication across different measurement standards.

A simple memory aid is to remember that 1 centimeter is roughly 0.4 inch. For 42 cm, you can estimate 42 x 0.4 = 16.8 inch. For precision, use a calculator or online tool. Visualizing an A2 paper width (42 cm) next to a 16.5-inch ruler can also help solidify the conversion in your mind.