Best way to have user choose between units of measurement

1. How can you choose any measuring unit?
2. What are the 3 most common units of measurement?
3. What is the unit of measurement more commonly used?
4. Why is it important to have units of measurement?

How can you choose any measuring unit?

Very small things should be measured in millimeters. Objects larger than 10 mm but smaller than a meter should be measured using centimeters, and objects larger than a meter should be measured using meters. Very large distances should be measured in units of kilometers.

What are the 3 most common units of measurement?

The three standard systems of measurements are the International System of Units (SI) units, the British Imperial System, and the US Customary System. Of these, the International System of Units(SI) units are prominently used.

What is the unit of measurement more commonly used?

The metric system is a decimalized system of measurement developed in France in late 18th century. Since the metric system is almost universally used, it is often referred to as the International System of Units and abbreviated SI.

Why is it important to have units of measurement?

For most quantities a unit is necessary to communicate values of that physical quantity. For example, conveying to someone a particular length without using some sort of unit is impossible, because a length cannot be described without a reference used to make sense of the value given.