Most citizens of the US think in
terms of "English" units like inches, feet, miles,
ounces, pints, quarts, and pounds. But the folks
in the UK have been using metric units like meters
for decades, and most folks in the US don't seem to be
trying, so the term "English" units seems to
be, at this late date, a little odd....
The primary metric units of
interest to Broadcasters are meters and
kilometers, since the FCC and the rest of the world converted to these units before the turn of
the 21st century...
The most exactly defined
conversion between English and Metric units is the
- 1 inch = precisely 2.540
All other English <> Metric
dimensional conversions can be derived from this formula.
One mile = 1.60934 km
One km = 0.621371 mile
Rule of thumb: 100 km = a little over 60 miles
One foot = 0.3048 meter
One meter = 3.2808 feet
Rule of thumb: 30 meters = roughly 100 feet
One inch = 0.0254 meter
One meter = 39.3701 inches
Rule of thumb: a meter = about 40 inches or 3 1/3
All calculations we do at
Dataworld are done in metric units. When input is
specified in English units, we precede the
calculations with conversions to metric units.
Likewise, when output is specified in English, the
metric results are converted to English units.