Convert meters to miles

仪表

定义
A meter (symbol: m) is the SI’s base unit of length, defined as the distance light travels in a vacuum in 1 ⁄ 299 792 458 seconds. This constant-based standard, adopted in 1983 and refined in 2019, ensures unvarying precision worldwide.

历史与起源

• 1793: One ten-millionth of the meridian from the Equator to the North Pole

• 1889: Length of the international platinum-iridium prototype bar at 0 °C

• 1960: Defined by a specific number of krypton-86 emission wavelengths

• 1983-2019: Tied directly to the fixed speed of light

当前用途
Meters are ubiquitous in science, engineering, architecture, and everyday measurements of distance and height. While the U.S. often favors customary units in daily life, meters remain the standard for international trade, research, and most global applications.

英里

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

历史与起源
源于拉丁文 里程碑 (“thousand paces”), the mile was standardized in 1593 as 8 furlongs (5 280 ft). Variants like the Roman mile (5 000 ft) and the nautical mile (1 852 m) persist in specialized contexts.

当前用途
Miles remain the norm for road distances, speed limits, and informal measures in the U.S., U.K., Myanmar, and Liberia. They also appear in aviation (statute vs. nautical miles) and certain sporting events.

Meter → Mile Conversion Table

如何转换

• 1 m = 0.0006213712 mi

• 1 mi = 1 609.344 m

示例

Convert 15 m to miles:

15 m × 0.0006213712 mi/m = 0.009320568 mi