# 6.4 inch to cm (Inches to Centimeter)

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This article provides detailed information on how to convert 6.4 inch to cm, along with some interesting facts about these units of measurement.

## How to convert 6.4 inch to cm accurately

6.4 inches is equal to 16.256 centimeters. Inch and centimeter are units of measurement with roots in history, tradition, and everyday use. Understanding the conversion between these units can be hugely practical in daily life, for instance when dealing with international documents or products.

In the modern world, different countries favor different systems of measurement. The US predominantly uses inches, while the rest of the world, following the International System of Units, frequently uses the centimeter. Hence, being able to convert inches to centimeters, like 6.4 inch to cm, can simplify many aspects of international communication, trade, and science.

Interestingly, the inch has been officially defined by the International Yard and Pound Agreement of 1959 as 2.54 centimeters, which allows for an easy conversion. Thus, to convert 6.4 inches to cm you simply multiply the value by this constant.

Inches have been in use in the UK since at least the 7th century, being mentioned in laws of Æthelberht dating to the early 600s. Meanwhile, the centimeter was a later invention, part of the metric system that France introduced during the French Revolution in the late 18th century.

But let's illustrate this with an example: Imagine a 6.4 inch smartphone. In most non-US countries this phone would be described as having a 16.256 cm screen, which gives a more relatable sense of size for people accustomed to the metric system.

Yet, the use of different systems can lead to some statistical misunderstandings. Around 35% of Americans think a quarter pounder burger is bigger than a 1/3 pound burger due to unfamiliarity with fractions. Similarly, misunderstandings can arise with the conversion between inches and centimeters if not done carefully.

To avoid such instances, it is always good to understand conversion methods like 6.4 inch to cm. Hence, tools and guides for simple conversions can be extremely useful. An online Inch to CM converter can handle such conversions quickly and effectively.

###FAQs

Q: How many centimeters are in 6.4 inches? A: 6.4 inches is equal to 16.256 centimeters.

Q: Which countries primarily use inches? A: The United States is the primary country that uses inches for measurement.

Q: What is the International Yard and Pound Agreement? A: The International Yard and Pound Agreement of 1959 is an agreement between the US, UK, Canada, Australia, New Zealand, and South Africa to define the yard and pound in terms of metric units. It defines one yard as exactly 0.9144 meters, and therefore one inch as 2.54 centimeters.

Q: Why is it important to understand conversions like 6.4 inch to cm? A: Understanding such conversions is essential for international trade, communication, and science, as different countries use different systems of measurement.

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