Foot (unit)

==Present day uses==

===International ISO-standard and other intermodal shipping containers ===
[[International Standards Organisation]] (ISO)-defined [[intermodal containers]] for efficient global freight/cargo shipping, were defined using feet rather than meters for their leading outside (corner) dimensions. All ISO-standard containers to this day are eight feet wide, and their outer heights and lengths are also primarily defined in, or derived from feet. <br>
Quantities of global shipping containers are still primarily counted in [[Twenty-foot Equivalent Unit]]s, or TEUs.

===Aviation===
Everyday global (civilian) air traffic / aviation continues to be controlled in [[flight level]]s (flying altitudes) separated by thousands of feet (although typically read out in hundreds – e.g. flight level 330 actually means 33,000 feet, or about 10 kilometres in altitude).

===Relation to shoe size===
The length of the (international) foot corresponds to a human foot with [[shoe size]] of 13 (UK), 14 (US male), 15.5 (US female) or 48 (EU sizing).<ref>{{cite web |title=Why are shoe sizes as they are?  |last=Melissa |url=https://www.todayifoundout.com/index.php/2016/03/pedestrian-origins-modern-shoe-sizes/ |website=Today I found out |date=30 March 2016}} (12×3=36. US(m): 36−22=14, UK: 36−23=13, EU:30.5×1.5=45.75 then +2 "for comfort" plus rounding = 48)</ref>{{better source|reason=todayifoundout.com is identified as "not generally reliable"|date=November 2023}}