# Is a decimeter bigger than a millimeter

## Converting units of length

bettermarks »Math book» Numbers »Quantities» Converting, comparing, arranging and calculating with lengths »Converting units of length

In these explanations you will learn how to write down length information in different ways and how to convert from one unit to another.

### Convert to comma from a smaller unit

If you want to convert a length specification from one notation to another, it is helpful to use the unit table, which makes it clear that the unit m has three digits (hundreds, tens and ones) and the units dm, cm, and mm only a place (one) belongs. The comma always separates two adjacent units.      ### Convert from a smaller unit to the mixed unit notation

If you want to convert a length from one notation to another, it is helpful to use the unit table. The table of units makes it clear that the unit m has three digits (hundreds, tens and ones) and the units dm, cm, and mm only have one place (ones). 