Inches to Millimeters calculator

Inches

A ruler with inches and centimeter marks.

Source: Wikipedia

Millimeters

A ruler with millimeter and centimeter marks.

Source: Wikipedia

Inches to Millimeters Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Inches to Millimeters conversion table based on your needs.

Selected rounding: none (You can change it above in the dropdown)

• Inche (0.0254 meters)

  The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to ​1⁄36 yard but usually understood as ​1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb. Traditional standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s it has been based on the metric system and defined as exactly 2.54 cm.

• Millimeter (0.001 meters)

  The millimetre (International spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore, there are one thousand millimetres in a metre. There are ten millimetres in a centimetre.