Moin moin!

pp>> (a) 1 gallon (US) is 0,3785 m^3
pp>> (b) 1 gallon (UK) is 0,4546 m^3
HT> H„, a gallon is for liquid, not in meter.
HT>        1 gallon is 3,785 l, so 10 gallon = 37,85 l

m^3 is m*m*m.
For example:

  your aquarium ist 1m*0,5m*0,5m = 0,25 m*m*m = 0,250 m^3

So m^3 is a space and also for liquid.

HT> if he has 3 goldfishes, and if U count 1 l for 1 cm fish, that
HT> makes ... I think it is not a big home for them

He has 0,3785 m^3 or 378,5 Liter.

Pit

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