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Calculating gallons
There are 2 formulas that give roughly the gallons of a pond:
LXWXDX7.8 gallons (right or 7.5?) Circle? Anyone have that info? The way to more accurately figure is using salt. See Roark's salt calculator at www.click2roark.com And most accurate, a water meter. ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#2
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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. -- Nick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061 |
#3
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Calculating gallons
7.48 gallons in a cubic foot.
3.14* diameter*Depth * 7.48 = gallons (diameter and depth in feet) -- Geoff The Sea Hawk at Wow Way d0t Com remove spaces and make the obvious substitutions to reply by mail When immigration is outlawed, only outlaws will immigrate. "~ jan" wrote in message ... There are 2 formulas that give roughly the gallons of a pond: LXWXDX7.8 gallons (right or 7.5?) Circle? Anyone have that info? The way to more accurately figure is using salt. See Roark's salt calculator at www.click2roark.com And most accurate, a water meter. ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#4
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Calculating gallons
There are 2 formulas that give roughly the gallons of a pond:
Rectangle or squa L x W x D x 7.48 = gallons Circle; 3.14 x Diameter x Depth x 7.48 = gallons Measurements in feet. The way to more accurately figure is using salt. See Roark's salt calculator at www.click2roark.com Thanks Nick & Geoff. Hopefully the above was interpreted correctly. ;-) ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#5
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Calculating gallons
On Sun, 26 Apr 2009 10:00:38 EDT, ~ jan wrote:
3.14 x Diameter x Depth x 7.48 = gallons Lets try this formula: Pi times radius squared times depth = cu ft cu ft x 7.48 = gallons 10 ft diameter 3 ft depth = 5x5x3.1416 =78.54 cu ft = 587.479 or commonly expressed as 587 and one half gallons. Smart people assume I know something and fail to explain in simple terms, sometimes that just frustrates me. |
#6
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Calculating gallons Final Answer
There are 2 formulas that give roughly the gallons of a pond:
Rectangle or squa Length x Width x Depth x 7.48 = gallons A Circle; Pi (3.14) X radius squared X DEPTH X 7.48 = gallons Measurements in feet. The way to more accurately figure pond gallons is using salt. See Roark's salt calculator at www.click2roark.com It is very important to know your volume when adding any pond chemical or medication. Thanks go to Nick, Chris, Geoff, and Hal for input, I think we have it in a save-able form. All agree say *I*, and the rest of you... ;-) ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#7
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Calculating gallons
"Capt. Geoffrey Thorpe" "The wrote:
7.48 gallons in a cubic foot. 3.14* diameter*Depth * 7.48 = gallons (diameter and depth in feet) 3,14*diameter gives you the circumference of the circle. When multiplied by the depth, it gives you the surface area of the right circular cylinder, not its volume. -- Nick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061 |
#8
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Calculating gallons
On Sun, 26 Apr 2009 10:01:26 EDT, Nick Cramer
wrote: "Capt. Geoffrey Thorpe" "The wrote: 7.48 gallons in a cubic foot. 3.14* diameter*Depth * 7.48 = gallons (diameter and depth in feet) 3,14*diameter gives you the circumference of the circle. When multiplied by the depth, it gives you the surface area of the right circular cylinder, not its volume. Okay.... your explanation either went over my head or I didn't understand the symbols used. Can you put it in a more simple form perhaps? Tx, ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#9
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Calculating gallons
~ jan wrote:
On Sun, 26 Apr 2009 10:01:26 EDT, Nick Cramer wrote: "Capt. Geoffrey Thorpe" "The wrote: 7.48 gallons in a cubic foot. 3.14* diameter*Depth * 7.48 = gallons (diameter and depth in feet) 3,14*diameter gives you the circumference of the circle. When multiplied by the depth, it gives you the surface area of the right circular cylinder, not its volume. Okay.... your explanation either went over my head or I didn't understand the symbols used. Can you put it in a more simple form perhaps? Tx, ~ jan OK, Jan. The circumference is the distance around the circle. Say you have a round pond that's ten foot across. You'll need 31.4 feet of edging stones. Say it's ten feet deep and you want to tile the side. You'll need 314 sq. ft. of tile. It would hold 3.14*5*5*10*7.48= 5872 gallons. HTH -- Nick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061 |
#10
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Calculating gallons
OK, Jan. The circumference is the distance around the circle. Say you have
a round pond that's ten foot across. You'll need 31.4 feet of edging stones. Say it's ten feet deep and you want to tile the side. You'll need 314 sq. ft. of tile. It would hold 3.14*5*5*10*7.48= 5872 gallons. Pi (3.14) X radius squared X diameter X 7.48 = gallons How's that? ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
#11
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Calculating gallons
"Nick Cramer" wrote in message
... "Capt. Geoffrey Thorpe" "The wrote: 7.48 gallons in a cubic foot. 3.14* diameter*Depth * 7.48 = gallons (diameter and depth in feet) 3,14*diameter gives you the circumference of the circle. When multiplied by the depth, it gives you the surface area of the right circular cylinder, not its volume. Correct. My mistake. 3.14 * (1/2 diameter) * (1/2 diameter )*depth * 7.48 = gallons. Sorry -- Geoff The Sea Hawk at Wow Way d0t Com remove spaces and make the obvious substitutions to reply by mail When immigration is outlawed, only outlaws will immigrate. |
#12
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Calculating gallons
On Wed, 29 Apr 2009 01:07:48 EDT, "Capt. Geoffrey Thorpe" "The
wrote: Correct. My mistake. 3.14 * (1/2 diameter) * (1/2 diameter )*depth * 7.48 = gallons. Oh, the 10 in Nick's was the depth, so Pi (3.14) X radius squared X Depth X 7.48 = gallons (Sorry guys, I prefer X for times over * stars, similar to most math books. ;-) ~ jan ------------ Zone 7a, SE Washington State Ponds: www.jjspond.us |
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