Hello!
This is kind of going to sound complicated...but here you Go!
Lets start off with MM:
The millimetre or millimeter is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore there are thousand millimetres in a metre. There are ten millimetres in a centimetre.
2nd, CM:
A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1100.
3rd, M:
The basic unit of length in the metric system; it was originally planned so that the circumference of the Earth would be measured at about forty million meters. A meter is 39.37 inches. Today, the meter is defined to be the distance light travels in 1 / 299,792,458 seconds.
And Last, KM:
The kilometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: km; /ˈkɪləmiːtər/ or /kɪˈlɒmɪtər/) or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo- being the SI prefix for1000).
So From all this information that i gave you, you might be thinking:
"Why on Earth Did you Give me ALL Of this when what i only needed is the ANSWER???"
Well, i gave you all of this so you could have an IDEA of what all these measurements and how HUGE they can be BEFORE i Give you The "Answer". So as Final or Result, they Biggest Measurements from ALL of the Above would be:
"KILOMETER"
1 km = 1000000 mm (Millimeters)
1 km = 100000 cm (Centimeters)
1 km = 1000 m (Meters)
Hope this ALL Helps! Took Me Time! Have A Wonderful Day! :)
