Convert across metric units (nm, µm, mm, cm, m, km), traditional Chinese measures (市里, 丈, 尺, 寸, 分), nautical standards (nautical mile, fathom, cable), and imperial units (inch, foot, yard, mile).
From semiconductor wafer nanometers to transoceanic nautical miles and astronomical light-years, calculations run with full floating-point accuracy.
Frequently asked questions
How many meters are in 1 nautical mile (nmi)?
Exactly 1,852 meters by international agreement, used globally in marine navigation and aviation.
How many feet are in 1 mile?
Exactly 5,280 feet — or 1,609.344 meters.
How many centimeters is 1 Chinese chi (市尺)?
1 Chinese chi equals 1/3 of a meter, or approximately 33.333 centimeters (10 cun).
中文说明
全能长度与空间跨度换算器：涵盖公制（纳米、微米、毫米、厘米、分米、米、千米/公里）、中国市制（华里、丈、尺、寸、分）、航海水深（海里、英寻、链）以及英美制（英寸、英尺、码、英里、密耳）。
无论是芯片制程纳米、服装腰围尺寸市尺、海运航空海里还是星际天文光年，皆可实时无缝转换。
常见问题
1 海里（nmi）等于多少米？
国际标准精确等于 1,852 米，广泛应用于全球海运船舶航行与民航客机飞行。
1 英里等于多少公里？
1 国际英里严格等于 1.609344 公里（5,280 英尺）。
1 市尺等于多少厘米？
1 市尺等于 1/3 米，约合 33.333 厘米。1 市尺包含 10 市寸（1 寸 ≈ 3.33 厘米），常用于服装裁剪与腰围计量。