18 mm to inches conversion

mm
in

Result

0 inches
Common Conversions

1 mm

0.0394 in

10 mm

0.3937 in

25.4 mm

1 in

100 mm

3.937 in
About Millimeters and Inches

Millimeters (mm) and inches (in) are units of length measurement used in different systems:

  • Millimeter: A metric unit equal to one-thousandth of a meter.
  • Inch: An imperial and US customary unit of length, equal to 25.4 millimeters.
Conversion Formula

To convert millimeters to inches:

Inches = Millimeters ÷ 25.4

To convert inches to millimeters:

Millimeters = Inches × 25.4
Common Uses

Millimeters are commonly used in:

  • Technical drawings
  • Engineering
  • Scientific measurements
  • European manufacturing

Inches are commonly used in:

  • Construction (US)
  • Woodworking
  • Screen sizes
  • US manufacturing
How to Use This Converter
1
Enter Value

Type your measurement in millimeters in the input field.

2
Click Convert

Press the convert button or simply start typing - the result will update automatically.

3
Get Result

Your result will appear instantly. Use the copy button to copy the result.

4
Additional Features
  • Use the swap button to switch between mm to inches and inches to mm
  • Click reset to clear all values
  • Reference the conversion table below for common values
Detailed Results
Input Value

0 mm

Converted Value

0 inches

Additional Information

This conversion is based on the standard ratio: 1 inch = 25.4 millimeters

Conversion Table (18 - 23 mm)
Millimeters (mm) Inches (in) Millimeters (mm) Inches (in)
18.0 mm 0.7087 in 20.5 mm 0.8071 in
18.1 mm 0.7126 in 20.6 mm 0.8110 in
18.2 mm 0.7165 in 20.7 mm 0.8150 in
18.3 mm 0.7205 in 20.8 mm 0.8189 in
18.4 mm 0.7244 in 20.9 mm 0.8228 in
18.5 mm 0.7283 in 21.0 mm 0.8268 in
18.6 mm 0.7323 in 21.1 mm 0.8307 in
18.7 mm 0.7362 in 21.2 mm 0.8346 in
18.8 mm 0.7402 in 21.3 mm 0.8386 in
18.9 mm 0.7441 in 21.4 mm 0.8425 in
19.0 mm 0.7480 in 21.5 mm 0.8465 in
19.1 mm 0.7520 in 21.6 mm 0.8504 in
19.2 mm 0.7559 in 21.7 mm 0.8543 in
19.3 mm 0.7598 in 21.8 mm 0.8583 in
19.4 mm 0.7638 in 21.9 mm 0.8622 in
19.5 mm 0.7677 in 22.0 mm 0.8661 in
19.6 mm 0.7717 in 22.1 mm 0.8701 in
19.7 mm 0.7756 in 22.2 mm 0.8740 in
19.8 mm 0.7795 in 22.3 mm 0.8780 in
19.9 mm 0.7835 in 22.4 mm 0.8819 in
20.0 mm 0.7874 in 22.5 mm 0.8858 in
20.1 mm 0.7913 in 22.6 mm 0.8898 in
20.2 mm 0.7953 in 22.7 mm 0.8937 in
20.3 mm 0.7992 in 22.8 mm 0.8976 in
20.4 mm 0.8031 in 22.9 mm 0.9016 in

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