Whether you are working on a home improvement project, a school assignment or you want to buy items where knowing specific sizes are very important, it helps to know different units of measurements and their corresponding conversions.

While there are calculators that you can find on the internet where various units of measurements may be automatically converted into your preferred unit, you may not always have access to your computer or the internet.

Simply knowing some of the basic conversions may already help you.

How Big is a Millimeter?

To give you a general idea of how big one millimeter is when converted to other units of measurements, below is a list of a few conversions you may want to keep in mind so you can have these handy when the need arises.

One Millimeter Compared to One:

**Inch –**is equivalent to 0.03937 of an inch

**Centimeter –**is equivalent to 0.10 of a centimeter

**Meter –**is equivalent to 0.001 or one-thousandth of one meter

**Foot –**is equivalent to 0.00328084 of a foot

**Yard –**is equivalent to 0.0010936133 of a yard

**Inch –**is equivalent to 25.4 millimeters

**Centimeter –**is equivalent to 10 millimeters

**Meter –**is equivalent to 1000 millimeters

**Foot –**is equivalent to 304.8 millimeters

**Yard –**is equivalent to 914.4 millimeters

These are only some of the basic conversions of millimeters in other units of measurements. If you need to convert larger units, it’s best to use a conversion calculator so you can get the most specific and accurate conversions.

You may also use a regular ruler to see measurements in both centimeters and millimeters. The millimeter equivalents are the lines between the centimeter values on a regular ruler.

Millimeters Fun Facts

For a bit of trivia on millimeters, see the following Fun Facts:

1. Did you know that wires used to make paperclips are roughly the size of 1 millimeter?

2. One millimeter is about the size of a smaller-than-average mustard seed.

3. For another visual representation, take a look at your regular red ant. One millimeter is smaller than this.

4. The smallest orchid in the world, Platystele jungermannioides, can be found in Central America, most abundantly in Costa Rica. It is only one-half of a millimeter in size

5. The world’s shortest and most lightweight freshwater fish can be found in the Philippines. The male Pandaka Pygmaea, also known as dwarf pygmy goby, has an average size of about 8.7 millimeters in length and weighs an approximate 4 to 5 milligrams.

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