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Old 26-04-2009, 01:26 AM posted to rec.ponds.moderated
Nick Cramer[_2_] Nick Cramer[_2_] is offline
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First recorded activity by GardenBanter: Jun 2007
Posts: 68
Default Calculating gallons

~ jan wrote:
There are 2 formulas that give roughly the gallons of a pond:

LXWXDX7.8 gallons (right or 7.5?)

Circle? Anyone have that info?


Volume of right circular cylinder (circle, vertical sides, flat bottom)
V=pi*r^2*h. volume (cu. ft.) times 7.48 equals US gallons. 22/7 is close
enough for pi (355/113 if your finicky). Multiply by the semi-diameter,
then multiply by the semi-diameter again. Then multiply by the depth. This
is the volume of the pond. Multiply by 7.48 for gallons.

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