# Convert 100 mm to cm

In this article I will show you how to convert 100 millimeters into centimeters. Throughout the explanation below I might also call it 100 mm to cm. They are the same thing!

## How to Convert Millimeters to Centimeters

A millimeter is smaller than a centimeter. I know that a mm is smaller than a cm because of something called conversion factors.

Put very simply, a conversion factor is a number that can be used to change one set of units to another, by multiplying or dividing it. So when we need to convert 100 millimeters into centimeters, we use a conversion factor to get the answer.

The conversion factor for mm to cm is:

1 mm = 0.1 cm

Now that we know what the conversion factor is, we can easily calculate the conversion of 100 mm to cm by multiplying `0.1` by the number of millimeters we have, which is 100.

100 x 0.1 = 10 cm

So, the answer to the question "what is 100 millimeters in centimeters?" is 10 cm.

## Millimeters to Centimeters Conversion Table

Below is a sample conversion table for mm to cm:

Millimeters (mm) Centimeters (cm)
0.010
0.10.01
10.1
20.2
30.3
50.5
101
202
505
10010
1000100

## Best Conversion Unit for 100 mm

Sometimes when you work with conversions from one unit to another, the numbers can get a little confusing. Especially when dealing with really large numbers.

I've also calculated what the best unit of measurement is for 100 mm.

To determine which unit is best, I decided to define that as being the unit of measurement which is as low as possible, without going below 1. Smaller numbers are more easily understood and can make it easier for you to understand the measurement.

The best unit of measurement I have found for 100 mm is inches and the amount is 3.9370078740157 in.