Metric Units of Length | Convert mm, cm, m and km

Welcome to how to Convert Metric Units of Length with Mr. J! Need help with mm, cm, m, and km conversions? You're in the right place!
Whether you're just starting out, or need a quick refresher, this is the video for you if you need help with converting metric units of length. Mr. J will go through the following conversions step by step for millimeters, centimeters, meters, and kilometers:
-convert mm to cm
-convert cm to mm
-convert cm to m
-convert m to cm
-convert km to m
About Math with Mr. J: This channel offers instructional videos that are directly aligned with math standards. Teachers, parents/guardians, and students from around the world have used this channel to help with math content in many different ways. All material is absolutely free.
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Hopefully this video is what you're looking for when it comes to metric units of length conversions.
Have a great rest of your day and thanks again for watching!

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[@piotrgliszczynski8229]

I am also a teacher (not mathematics) and I am surprised that you are so impressed with this lesson ... In the metric system, everything starts with a meter (or divide or multiply by 10, 100, 1000, 1 million ...). I wonder how you learn Imperial Units where the calculations are not so easy ... someone can describe it to me, I will be very grateful :)

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Is decimeter a common use measurement, that would seem to be the apparent exchange for what we use '1foot/feet' lenght rule tools for? For example in schools and the like, we keep a foot long rule in our supplies, do they keep a decimeter length rule tool or something of the like?

[@zyscher]

Germany here. :) No, a decimeter is very uncommon to work with in everyday life, because in most cases, you would either be using centimeters (or millimeters, if you want to be very exact) or jump to meters. Rulers are mostly 30 cm long, which is very close to one foot, I believe. As for (human) heights, you would say that someone is either 1.78 m or 178 cm, but certainly not 17.8 dm.

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How to measure Lower units into large units

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I understand that , but can you please tell me how to measure the half conversion of units

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