Convert feet to miles

脚

定义
A foot (symbol: ft) is a customary unit of length in the Imperial and U.S. systems, fixed at exactly 0.3048 meters since 1959. It contains 12 inches and is one-third of a yard.

起源
Historically, many cultures—from Greek and Roman to medieval English and Chinese—based the “foot” on human anatomy (foot length, span, cubit). These local standards varied between roughly 250 mm and 335 mm until an international agreement in 1959 standardized the foot at 304.8 mm.

Contemporary Use
Feet remain the default for everyday measurements in the United States, Canada, and the United Kingdom: personal height, room dimensions, sports fields, and aviation altitudes are all commonly expressed in feet.

英里

定义
A statute mile (symbol: mi) is an Imperial and U.S. customary length unit defined as exactly 5 280 feet, 1 760 yards, or 1 609.344 meters.

起源
The mile derives from the Latin 里程碑 (“thousand paces”). England formalized it at 8 furlongs (5 280 ft) in 1593. Other variants—Roman mile (5 000 ft), nautical mile (1 852 m)—remain in specialized use.

Contemporary Use
Miles are the standard for road distances and speed limits in the U.S., U.K., Myanmar, and Liberia, and they appear in aviation and certain sports contexts worldwide.

Foot → Mile Conversion Table

如何转换

• 1 ft = 0.0001893939 mi

• 1 mi = 5 280 ft

示例

Convert 15 ft to miles:

15 ft × 0.0001893939 mi/ft = 0.0028409091 mi