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1m

1 meter (symbol m) is the base unit of length in the International System of Units (SI). It is defined as the distance light travels in vacuum in 1/299,792,458 of a second.

The metre name derives from the French metre, itself from Greek metron meaning measure. Historically, the unit

Equivalents and conversions are exact by definition. 1 m equals 100 centimeters and 1000 millimeters; in customary

Use and significance: The meter is the central standard for measuring length in science, engineering, construction,

was
tied
to
the
size
of
the
Earth:
originally
defined
as
one
ten-millionth
of
the
distance
from
the
equator
to
the
North
Pole
along
a
meridian
through
Paris.
In
1960,
the
meter
was
defined
as
1,650,763.73
wavelengths
of
the
radiation
of
krypton-86
in
vacuum.
In
1983,
the
definition
was
revised
to
the
length
of
the
path
traveled
by
light
in
vacuum
during
1/299,792,458
of
a
second.
units
it
is
about
3.28084
feet
or
39.3701
inches;
and
in
metric
terms,
1
meter
is
0.001
kilometers.
and
everyday
life.
It
underpins
derived
quantities
such
as
area
(square
meters)
and
volume
(cubic
meters).
Its
submultiples
and
multiples,
such
as
millimeters,
centimeters,
and
kilometers,
enable
measurement
across
a
wide
range
of
scales
from
nanoscale
dimensions
to
intercity
distances.