How Many Uk Gallons Is This Tank?

J4MES

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Hi all,

Iv'e bought a new tank going by the dimensions of 2ft long, 1ft wide, 1ft deep. Does anyone know how many UK gallons is this? :blink: :blink:

Thanks
No worries :good:
J4MES
 
that formula is straight off a instruction manually for some anti algae chemicals im using at th emo so it should be spot on


heres hte litres forumla

Length x Width x Depth in cm / 1000 = Litres


1 Litres = .22gallons
1 Gallon = 4.54 Litres

now the only thing im not sure of is if those formulas are for imperial or metric gallons

Dan
 
that formula is straight off a instruction manually for some anti algae chemicals im using at th emo so it should be spot on


heres hte litres forumla

Length x Width x Depth in cm / 1000 = Litres


1 Litres = .22gallons
1 Gallon = 4.54 Litres

now the only thing im not sure of is if those formulas are for imperial or metric gallons

Dan

1 gallon (U.S.) = 3.785 litres
1 gallon (British Imperial) = 4.546 litres :shifty:
 
so that formula then is deffinatley (sp) for uk gallons well done me for looking at a piece of paper and almost pulling it off as my own :unsure:
 
it is:

12.5 Gallons

Length x Width x Depth in inches / 276 = Gallons


But this calc does not allow for thickness of the glass, displacement by gravel etc and also assumes the tnak is full to the brim.

I would suggest a tank that measures 24x12x12 (or 30.5x30.5x61cm) would have internal dimensions of approx 60x29x29cm. If filled to within 3cm of the top this gives water volume of 60x29x26=45.24 litres = just under 10 UK gallons. Deduct a bit more for gravel displacement would give water volume of maybe 9-9.5 gals, a significant difference to 12.5, especially when it comes to dosing meds etc. Potentially by using the 12.5 figure an overdose of 30% could be made!!!

i suspect many tanks are over-quoted on volume due to people not using internal dimensions or allowing for displacement - how many people OD their tanks as a result? My tank, for instance, would hold 320 litres if I used ext dimensions (183x46x38cm=319884cc=319.884 litres). I know it actually holds around 55 UK galls (250 litres) based on what I actually put into it, thus ext measurements yield a 28% difference on actual.

Or am I getting too hung up???
 
it is:

12.5 Gallons

Length x Width x Depth in inches / 276 = Gallons


But this calc does not allow for thickness of the glass, displacement by gravel etc and also assumes the tnak is full to the brim.

I would suggest a tank that measures 24x12x12 (or 30.5x30.5x61cm) would have internal dimensions of approx 60x29x29cm. If filled to within 3cm of the top this gives water volume of 60x29x26=45.24 litres = just under 10 UK gallons. Deduct a bit more for gravel displacement would give water volume of maybe 9-9.5 gals, a significant difference to 12.5, especially when it comes to dosing meds etc. Potentially by using the 12.5 figure an overdose of 30% could be made!!!

i suspect many tanks are over-quoted on volume due to people not using internal dimensions or allowing for displacement - how many people OD their tanks as a result? My tank, for instance, would hold 320 litres if I used ext dimensions (183x46x38cm=319884cc=319.884 litres). I know it actually holds around 55 UK galls (250 litres) based on what I actually put into it, thus ext measurements yield a 28% difference on actual.

Or am I getting too hung up???

No not to hung up at all, very good point, well worth remembering. :good:
 
But this calc does not allow for thickness of the glass, displacement by gravel etc and also assumes the tnak is full to the brim.

I would suggest a tank that measures 24x12x12 (or 30.5x30.5x61cm) would have internal dimensions of approx 60x29x29cm. If filled to within 3cm of the top this gives water volume of 60x29x26=45.24 litres = just under 10 UK gallons. Deduct a bit more for gravel displacement would give water volume of maybe 9-9.5 gals, a significant difference to 12.5, especially when it comes to dosing meds etc. Potentially by using the 12.5 figure an overdose of 30% could be made!!!

i suspect many tanks are over-quoted on volume due to people not using internal dimensions or allowing for displacement - how many people OD their tanks as a result? My tank, for instance, would hold 320 litres if I used ext dimensions (183x46x38cm=319884cc=319.884 litres). I know it actually holds around 55 UK galls (250 litres) based on what I actually put into it, thus ext measurements yield a 28% difference on actual.

Or am I getting too hung up???

Here, let's make it easy for the common man...

http://boonedocks.net/fishtank/ftweb.php
 
When referring to tank sizes (such as minimum size for a fish or for stocking guidelines) one always refers to air and glass space. Otherwise it would get very tricky. especially when working out total volume of sumped systems where the sump is at different heights in different chambers.

Otherwise one could go to the nth degree and include the displacement of the glass, the air above, the substrate, any plants, any existing fish, the filter...
 

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