What is about 1 foot long?

1 foot is a unit of length in the customary system of measurement that is equal to 12 inches. You may want to think of 1 foot as the average length of a human foot because this is how it was originally defined. However, unless you really have big feet, it is not likely that your foot will have a length of 12 inches.

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Is 1 foot the size of a foot?

One foot contains 12 inches. This is equal to 30.48 centimetres. It is called a foot, because it was originally based on the length of a foot.
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Foot (unit)
foot
1 ft in … … is equal to …
imperial/US units 13 yd 12 in
metric (SI) units 0.3048 m