And here's a web-based converter:

http://www.flw.com/convert1.htm

"NetMax"  empowered us with this
mighty blow 
against the Patriarchy:

> or, the ultimate IMHO calculator, the essential desktop tool for
> aquarists
> http://www.esbconsult.com.au/esbcalc/index.html ESBUnitConv v2.0.1
> and it is free.
> 
> Thanks to Razor who pointed me to it.
> NetMax
> 
> "Haywire"  wrote in message
> news:Xns9302F3885CEF2undisclosednospamcom{at}66.185.95.104...
>> sigh you silly people :), the last on the planet to abandon the
> imperial
>> measure.  You'd think after your declaration of independance from the
>> british empire you'd gladly adopt metric.
>>
>> 3.76 L to a U.S. Gallon.
>>
>> "kush"  wrote in
>> news:CeJU9.40127$uL2.16528{at}nwrddc01.gnilink.net:
>>
>> > I doesn't work for lazy Americans such as myself who can't be
> bothered
>> > learning how to convert gallons to liters.
>> >
>> > Matt  wrote in message
>> > news:a1c5f6aa.0301131440.18b04257{at}posting.google.com...
>> >> Water changes are the most widely used way of controlling nitrate
>> >> levels in an aquarium. Everyone has their own
recommendations on how
>> >> many water changes you need to make, but in truth, it's impossible
> to
>> >> tell unless you test the effect that they are having upon
your water
>> >> and act accordingly.
>> >>
>> >> In some tanks, a monthly 25% water change might be fine for keeping
>> >> the nitrate level low, but in others you might need to make a 25%
>> >> every week, or change 30-40% every month.
>> >>
>> >> This calculator works out how many water changes, and
what size what
>> >> changes, you need to make in order to keep the nitrate level at
> about
>> >> the same level as your source water.
>> >>
>> >>
>> >
> http://www.practicalfishkeeping.co.uk/pfk/pages/water_change_calculator
>> > .php
>> >
>> >
>> >
>>
> 
> 
>
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