長さ単位変換

Length unit conversion
 -Supports multiple length conversion methods.
 -1. Metric system-> Metric system
I) Mode 1
[Km, meter, decimeter, centimeter, millimeter, micrometer, nanometer, angstrom]-> [kilometer, meter, decimeter, centimeter, millimeter, micrometer, nanometer, angstrom]
II) Mode 2: [km, m, dm, cm, mm, um, nm, Å]-> [km, m, dm, cm, mm, um, nm, Å]

 -2. Metric system-> UK / US
I) Mode 1
[Km, meter, decim, centimeter, millimeter, micrometer, nanometer, angstrom]-> [league, mile, furlon, chain, rod, yard, fasom, foot, link, hand, inch, line, mill, Sau]
II) Mode 2: [km, m, dm, cm, mm, um, nm, Å]-> [league, mi, furon, chain, rd, yd, fasom, ft, link, hand, in, line, mil , thou]

 -3. UK / US-> UK / US
I) Mode 1
[League, Mile, Fallon, Chain, Rod, Yard, Feem, Feet, Link, Hand, Inch, Line, Mill, Sau]-> [League, Mile, Fallon, Chain, Rod, Yard, Fathom, Feet, Link, Hand, inch, line, mill, sau]
II) Mode 2: [league, mi, furlon, chain, rd, yd, fasom, ft, link, hand, in, line, mil, thou]-> [league, mi, furlon, chain, rd, yd, fasom , ft, link, hand, in, line, mil, thou]

 -4. UK / USA-> Metric method
I) Mode 1
[League, Mile, Farron, Chain, Rod, Yard, Foot, Link, Hand, Inch, Line, Mill, Sau]-> [km, meter, decimeter, centimeter, millimeter, micrometer, nanometer, Angstrom]
Ii) Mode 2: [League, mi, furlon, chain, rd, yd, fasom, ft, link, hand, in, line, mil, thou]-> [km, m, dm, cm, mm, mm, nm ], Å]

 -99% one second of results, fast.

 -Precision Scientific Calculation:
(1) In the case of infinite decimal point, 99.99% indicates the number of decimal places exceeding 11.
(2) In the case of a finite decimal number, the correct value is displayed in the case of 99.99%, and the last 0 bit is deleted after the decimal point is deleted.

 -Suitable for working people, doing homework, study room.

 -For foreign companies / projects that include a length, the user can convert to a specified length unit to make the value.