**How are feet measured in the US?**

Foot length is

**measured with the subject standing barefoot and the weight of the body equally distributed between both feet**. The sizes of the left and right feet are often slightly different. A shoe-size system can refer to three characteristic lengths: The median length of feet for which a shoe is suitable.**Is a foot the size of a foot?**

12 inches

**What is international foot?**

An International Foot is

**one-third of the Imperial standard yard**, which is defined to be 0.9144 meters (0.3048 m/ft conversion factor). This means that an International Foot is exactly 30.48 cm.**What is the difference between us foot and International foot?**

A U.S. survey foot is expressed as a fraction — 1200/3937 meters — while an international foot is expressed as a decimal, exactly 0.3048 meters. That’s a difference of only

**one one-hundredth of a foot per mile**. That’s why NIST and NOAA are retiring the U.S. survey foot and standardizing on the international foot.