# 4.5 Millimeter to Inch

Convert 4.5 (four) Millimeters to Inches (mm to in) with our conversion calculator.

4.5 Millimeters to Inches equals 0.1772 in.

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Convert 4.5 Millimeters to Inches (mm to in) with our conversion calculator.

4.5 Millimeters to Inches equals 0.1772 in.

To convert millimeters (mm) to inches, you use the conversion factor 1 inch = 25.4 millimeters. This means that each millimeter is equivalent to 1/25.4 inches. Therefore, to convert 4.5 millimeters to inches, you'll multiply the number of millimeters (4.5) by the inch equivalent of one millimeter (1/25.4).

$$[ \text{Inches} = \text{Millimeters} \times \left(\frac{1 \text{ inch}}{25.4 \text{ mm}}\right) ]$$ $$[ \text{Inches} = 4.5 \times \left(\frac{1}{25.4}\right) ]$$ $$[ \text{Inches} = 4.5 \times 0.03937007874 ]$$ $$[ \text{Inches} \approx 0.17716535433 ]$$

So, 4.5 mm is approximately 0.177 inches when converted.

Below are seven items that typically have a thickness or length of approximately 4.5 mm:

1. Smartphone SIM card:

• Modern smartphones use nano SIM cards which are about 4.5 mm in width.
2. Pencil Eraser:

• The thickness of a small flat pencil eraser can be approximately 4.5 mm.
3. Standard USB Type-A Connector:

• The metal part of a USB Type-A connector that plugs into the computer or charging port is close to 4.5 mm thick.
4. Guitar Pick:

• Heavy guitar picks can be around 4.5 mm thick, designed for precision and durability for experienced players.
5. Staples:

• The leg length of a standard office staple can be approximately 4.5 mm.
6. SD Card:

• The thickness of a standard Secure Digital (SD) memory card is 4.5 mm.
7. Some Keys:

• The bit (the part that actually inserts into the lock mechanism) of smaller keys, such as those for padlocks and mailboxes, can have a thickness close to 4.5 mm.

Each of these items provides a tangible sense of how small yet significant the measurement of 4.5 mm is in everyday objects.