 
What are metric
units of
length?
kilometer
A kilometer or kilometre (in most Englishspeaking
countries) is a distance and should be pronounced the way other units for
distance are pronounced with the accent on the FIRST syllable.
A distance 1,000 meters long is three times
the height of the Sears Tower (or the Eiffel Tower), or 60
railroad cars or 500 basketball players laid
end to end (although they probably wouldn't like it very much
) In Chicago, one could walk from the Art Institute
to the Field
Museum to go a kilometer or travel 500 house numbers or 10
city blocks in Chicago The symbol K stands for a temperature
Kelvin not a distance, and a symbol such as K _{5 }is used in chemistry,
not geography. A 5K race would be a race at 5 degrees Kelvin, which would be PRETTY COLD A square kilometer would take up a square area 11
football fields on a side by 22 football fields
on the other side and contain 1,000,000 m ^{2 }or area, or 1 km
^{2}
Typical Kilometer (KIL'ohmeter)
Distances: One kilometer would also be 500 basketball players laid end to
end,
but they probably wouldn't like it very much.
 One kilometer (accent the first syllable) is about three Eiffel
Towers,
or 
 the length of 60 railroad cars, or 
 the length of 11 football fields. 
 A kilometer (or kilometre in most Englishspeaking countries)
is also
the distance from the Art Institute to the Field Museum, or 
 about 10 city blocks (500 street numbers) in Chicago). 
Typical One Meter heights:
 One meter is about 
 the height of a doorknob, or 
 a typical ten year old, 
Typical Two Meter Heights:
 most doors are about two meters high. 
 many basketball players, including Dennis Rodman are two meters
high 
Typical Three Meter Heights:
 a typical one story building is three meters high. 
Typical Longer Lengths:
Typical 5kilometer distances:
 A 5 km race would be the length of 15 Sears or Eiffel Towers,
or 
 300 railroad cars, or 
 55 football fields, or 
 210 tennis courts. 
The distance of 5 km in Chicago would
be
If one ran 5 km south, that distance would take one from Madison
Street
to about 31st Street
 2500 street numbers or 
 (50 city blocks) or 
 the distance from State Street to Western Avenue or 
 from Madison to Fullerton Avenue. 
Typical 20 km Distances
A 20 km distance in Chicago would be
20 football fields.
 10,000 street numbers or the distance from Madison Street to
100th
street. 
 This is also the height of 60 Sears Towers, or 
 1,200 railroad cars (a pretty long train!) or 
Typical 40 km distances: (marathon
race)
What if we consider street distances? If one ran from Madison
Street in Chicago to a bit past Chicago State University (100th street) and then back
again,
this would be the equivalent distance of running a marathon such as
the
Chicago marathon (40 kilometers).
 120 Sears Towers, or 
 2,400 railroad cars, or 
 440 football fields, or 
 20,000 basketball players (or perhaps 
 40,000 tenyearold children!) 
The
symbols
(not abbreviations) for SI units are the same all over the world,
regardless
of the local language spoken.
