›› Measurement unit: inch

Full name: inch

Plural form: inches

Symbol: in

Category type: length

Scale factor: 0.0254


›› SI unit: metre

The SI base unit for length is the metre.
1 metre is equal to 39.3700787402 inch.


›› Convert inch to another unit

Convert inch to  

Valid units must be of the length type.
You can use this form to select from known units:

Convert inch to  

I'm feeling lucky, show me some random units


›› Definition: Inch

An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot. The inch is usually the universal unit of measurement in the United States, and is widely used in the United Kingdom, and Canada, despite the introduction of metric to the latter two in the 1960s and 1970s, respectively. The inch is still commonly used informally, although somewhat less, in other Commonwealth nations such as Australia; an example being the long standing tradition of measuring the height of newborn children in inches rather than centimetres. The international inch is defined to be equal to 25.4 millimeters.


›› Sample conversions: inch

inch to lieue [France]
inch to fall [Scotland]
inch to kilometre
inch to block [Midwest U.S.]
inch to seemeile
inch to decimetre
inch to goad
inch to mile [international]
inch to foot [France]
inch to nail