Units of Length

Metric and Customary units of length

Let's start!

What is length?

• he measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of an object.

• the amount of time occupied by something.

What are Metric units?

In science classes, and anywhere outside of the United States, length is measured with the Metric System. The most common units that we use to measure length in the metric system are the millimeter, centimeter, meter, and kilometer. The millimeter is the smallest commonly used unit in the metric system.

Multiple Select

Which customary and metric units would you use to measure the length of a book?

Customary: __________________

Metric: ______________________

• Inches, Centimeters

• Centimeters, Inches

• Milimeters, Inches

• Pounds, Centimeters

What are the customary units?

The customary units to measure length and distances in the customary system are inches, feet, yards, and miles. We can use the given chart for conversion of one customary unit of length to another.

Multiple Choice

Which customary and metric units would you use to measure the distance to the store?

Customary: __________________

Metric: ______________________

• Kilometers, Meters

• Inches, Meters

• Miles, Kilometers

• Liters, Gallons

Conclusion

The customary system is the system of measurement primarily used in the United States. Units in this system include the inch, foot, mile, pound, and cup. The metric system is the system of measurement primarily used in science and in countries outside of the United States.