Standard factors
Uses exact factors such as 1 inch=2.54cm and 1 mile=1609.344m.
Unit Converter
长度转换器 — 米、厘米、英寸、英尺、英里
在米(m)、厘米(cm)、毫米、千米、英寸、英尺、码、英里之间即时换算。
换算结果
mm1,000
cm100
m1
km0.001
in39.37
ft3.281
yd1.094
mi0.001
What is the length converter?
It converts between metric (mm, cm, m, km) and imperial (inch, foot, yard, mile) units. Enter a value in one unit and the rest update instantly.
How to use
- 1 Enter the value to convert.
- 2 Choose the source unit.
- 3 Read the converted results in every unit.
Highlights
All at once
One input shows every unit simultaneously.
Instant
Results update as you type.
常见问题
How many cm in an inch?+
1 inch = 2.54 cm.
How many km in a mile?+
1 mile ≈ 1.609 km.
How many cm in a foot?+
1 foot = 30.48 cm = 12 inches.
Related converters
This converter uses international standard unit definitions and is for general reference.