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Re: Standards of converting to metric

Subject: Re: Standards of converting to metric
From: "Fred Ridder" <docudoc -at- hotmail -dot- com>
To: "TECHWR-L" <techwr-l -at- lists -dot- techwr-l -dot- com>
Date: Fri, 04 Feb 2005 18:44:45 -0500


That's only true to a first approximation. 1 US gallon (4 US quarts)
is equal to 3.785 litres. 1 Imperial gallon (4 Imperial quarts) is equal
to 4.546 litres. That makes 1 Imperial gallon equal to 1.201 US gallons
or 4.804 US quarts. So your ballpark conversion factor is off by
about 4%.

The same proportional difference applies to US vs. Imperial versions of
gallons, quarts (quarter gallons), and pints (half quarts), but does *not*
apply to fluid ounces since there are 16 fl oz in a US pint (128 in a US
gallon) but 20 fl oz in an Imperial pint (160 in an Imperial gallon), making
the Imperial fluid ounce about 4% *smaller* than the US fl oz even
thoughe Imperial gallons are bigger.

Tie-in to tech writing? It's Friday afternoon and every tech writer
deserves to go home and drink a pint.

Fred Ridder
Intel
Parsippany, NJ

From: Peter Neilson <neilson -at- alltel -dot- net>
Reply-To: Peter Neilson <neilson -at- alltel -dot- net>
To: "TECHWR-L" <techwr-l -at- lists -dot- techwr-l -dot- com>
Subject: Re: Standards of converting to metric
Date: Fri, 04 Feb 2005 11:21:42 -0500


In case no one has yet observed this point:
"Metric" is officially SI, that is, Systeme Internationale.
"Imperial" is the (previous) UK standard and it is not quite
the same as "US", especially measurement of liquid volumes,
like quarts. IIRC, the British gallon is five US quarts.

On Fri, 4 Feb 2005 10:26:04 -0500, Goldstein, Dan <DGoldstein -at- DeusTech -dot- com> wrote:

million probe that crashed because of a failed conversion between metric and
imperial units in the ground-based, navigation software.

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References:
Re: Standards of converting to metric: From: Peter Neilson

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