







2.5 gallons of liquid, one half an inch deep 
20180221 

From Cain: How many square feet would 2.5 gallons of liquid cover at half an inch deep? Answered by Penny Nom. 





Gallons and cubic inches 
20161205 

From Theresa: If I did not know the cubic inches in a liquid gallon how would I find it?
In other words what is the formula for this? Answered by Penny Nom. 





A 2 million gallon tank 
20160928 

From Kimberly: I have a tank that is shaped like a cylinder, and it has to hold 2 million
gallons of water. There is a height limit of 30 ft.
I know the equation is V=pi x r squared x h but I don't know if I need anything
For the square foot of water. Answered by Penny Nom. 





5000 gallons in cubic yards 
20150217 

From Miguel: If I have a cube shaped tank in the ground that holds 5000 gallons and I want to take it out and fill the hole in with dirt, how much dirt will I need in yards? Answered by Penny Nom. 





How many square feet in 10 gallons of liquid at 1/4 in thick? 
20141114 

From Rich: How many square feet in 10 gallons of liquid at 1/4 in thick Answered by Penny Nom. 





1,990 cubic yards in gallons 
20130716 

From Tayler: You have 1,990 cubic yards of concrete to pour.
If the average swimming pool holds 25,000 gallons, how many pools can
Be poured with the 1,990 cubic yards of concrete.
1 cubic yard= 27 cubic feet Answered by Penny Nom. 





Water use in a rectangular flush tank 
20130510 

From milo: A rectangular flush tank 22" by 71/4 contains water to depth of 17" how many gallons of water will be saved if a conservation device reduces the capacity to 3/5 of this amount? And reduced to the nearest tenth Answered by Penny Nom. 





A project on reclaiming water 
20121211 

From shannon: I'm doing a report to reclaim water off of our campus facility to store in a cistern to use to flush toilets.
In Southeast Wisconsin and average of 82 inches of rain and snow fall annually.
I want to collect that off of the roof of our school building.
The roof is 37128 square feet.
how many gallons annually could I collect? Answered by Penny Nom. 





Liters and gallons 
20120420 

From ann: the fuel tank of jacks car hold 72 litres when full jack uses half a tank of fuel he travels240 miles how many miles does he cover for each gallon of fuel Answered by Penny Nom. 





How many gallons of water to fill my pool? 
20120113 

From Don: How many gallons of water do you need to fill a 22 feet long and 13 feet wide rectangular pool if it is 3 feet deep on one end and 7 feet deep on the other end? Answered by Penny Nom. 





The number of gallons in a box 
20111218 

From matt: i need to know how many gallons a 16 inch square box will hold Answered by Penny Nom. 





A 3000 gallon tank 
20111208 

From Delores: I need to know what size to build a tank to hold 3000 gallons of water
one side needs to be 8 ft width X 6 ft height how long does it need to
be? Answered by Penny Nom. 





The diameter of a cylinder 
20110118 

From Gayle: Given a cylindrical container that holds 45 imp. gallons and is 42 inches high, find the diameter Answered by Penny Nom. 





A 400 gallon oil tank 
20110108 

From theresa: we have a oil tank that holds 400 gallons of oil currently there is 11/16 volume in the tank how many gallons are there? Answered by Harley Weston. 





How many gallons of water will it take to fill a classroom? 
20101201 

From deena: How many gallons of water will it take to fill a classroom that is 26 feet long by 19 feet wide and 9 feet high? How many tons of water will that be? Answered by Stephen La Rocque. 





30,000 US gallons of water 
20101012 

From mike: If a swimming pool can hold 30,000 US gallons of water  is it possible to calculate the number of yards of dirt it would take to fill the hole? Answered by Penny Nom. 





The number of gallons of water in a basement 
20100523 

From George: A basement with dimensions 68 ft long by 42 ft wide by 10 ft deep is flooded to the ceiling calculate the number of gallons of water in the basement. 70 Answered by Penny Nom. 





If the earth were covered completely with water 
20100225 

From don: If the earth were covered completely with water (over Everest) how many gallons would it be?? Answered by Penny Nom. 





43200 cubic inches in gallons 
20090517 

From Denise: how many gallons are in a tank that has a volume of 43,200 cubic inches? Answered by Penny Nom. 





The volume of a pipe 
20090315 

From kalen: Okay I am doing a problem on a practice sheet to study with and I need help. The question states:
How many gallons will 500 feet of sixinch water pipe hold?
Do you have any suggestions/breakdowns on how to work out this problem so that in the future
I will know how to do it? Answered by Penny Nom. 





A ¾ inch copper pipe 
20090222 

From Ray: Hi
Do you have a formula I can use for this problem? And how to use it.
Thank You
How many feet of ¾ inch copper pipe will it take to hold 3 gallons of water? Answered by Harley Weston. 





Gallons of water in a 3 mile pipe 
20090219 

From tim: I need to know how many gallons of water a 16" pipe that is 3 miles long holds? Answered by Penny Nom. 





How many gallons does my soup kettle hold? 
20090215 

From Old: I have a round kettle I use to make soup for the hungry. I was curious on how many gallons it holds. The radius is 16 inches and the height is 18 inches. Answered by Penny Nom. 





How many gallons = (1 acre * .25 inch) 
20090131 

From Thom: How many gallons = (1 acre * .25 inch)
Thanks Thom Answered by Penny Nom. 





The number of gallons in a tank 
20090119 

From Jim: Hi, i need to know how many gallons of water can fit into our tank, and how to do the calculations my self. The tank is 72" round by 72" long, i would like some help. Thanks Jim. Answered by Harley Weston. 





20 miles of gasoline 
20090118 

From Roger: I used the volume formula and found that a cylinder with a 3" radius X 8.75" height yields just over 231 cu. in. (one gallon) doesn't seem right, but that's what I got. Then found the percent that 8.175" is to one foot and multiplied that into the number of feet in 20 miles. I'm not good at math, so I'm starting to lose myself here. The short story is I get a cylinder that is 20 miles long and only .0000387" in diameter. Is this even close to the mark? Answered by Harley Weston. 





Evaporation of waste water 
20081121 

From Alexandra: Engineers know that the amount of water lost due to evaporation
is directly proportional to the surface area of the holding tanks and
that the local climate causes water to evaporate at the rate of about
gallon of water per hour for each square foot of water exposed to
the air. About how many total gallons of waste water may enter the
three tanks each day to maintain full capacity?
I know that the answer is 50x10^3 but i don't know why. Answered by Penny Nom. 





The average rate of change of gasoline used 
20081006 

From JHulie: What is the average rate of change of gasoline used, measured in miles per gallons
if you travel 212 miles, then you fill your gas tank up again and it takes 10.8 gallons.
If you designate your change in distance as 212 miles and your change in gallons as 10.8? Answered by Penny Nom. 





The volume of a cylinder in gallons 
20080917 

From subash: i want to calculate volume of cylinder tank whose height is 1700mm and
diameter is 1900mm and to convert volume into gallon ? Answered by Harley Weston. 





A rectangular tank of water 
20080902 

From Angela: A rectangular tank is 80 ft long, 30 ft wide, and 20 ft deep. If 100,000 gallons of water were pumped into the tank, what would be the water rise? Answered by Penny Nom. 





The length of a pipe 
20080825 

From John: How many feet of one inch pipe would it take to hold 30 and 40 gallons of water?
Imperial gallons please. Answered by Penny Nom. 





A cubic mile of water 
20080803 

From Fred: [QQ] HOW MUCH WATER IS THERE IN A CUBIC MILE? Answered by Stephen La Rocque. 





The volume of a fuel tank 
20080801 

From G.: I have a fuel tank that is 70 inches by 48 inches and 24 inches deep, how many imperial gallons does it hold? Answered by Victoria West. 





How many gallons of fuel still in the barrel? 
20080722 

From Charles: I have barrel 6 feet long and 3 feet diameter that is laying on it's side with 5 inches of fuel, how many gallons of fuel still in barrel Answered by Penny Nom. 





Kilometers per liters to miles per gallon 
20080626 

From margaret: we travelled 130 kilometers on 10 liters of gas. How many miles to the gallon did I get Answered by Penny Nom. 





How many gallons of oil will be needed to raise a 4" plunger 25 feet? 
20080606 

From cory: How many gallons of oil will be needed to raise a 4" plunger 25 feet? Answered by Penny Nom. 





Convert cubic inches to gallons 
20080526 

From Rosemarie: How do you convert cubic inches to gallons? Thanks for your help. Answered by Penny Nom. 





How many gallons are in 1,500 liters? 
20080501 

From bambi: [How many gallons are in 1,500 liters? Answered by Penny Nom. 





The volume of a triangular shaped pond 
20080410 

From Bret: we have a pond that is triangular shape : 130ftx130ftx150ft and is 4ft deep. How can I figure out as to how many gallons of water it will take to fill it up? Thanks for your help :) Answered by Penny Nom. 





How long will it take to pump the water out of the basement? 
20080401 

From Shiva: I need to pump water out of a flooded basement, using two 50 (gpm) pumps. The basement has the dimensions shown and is flooded to a depth of 16 inches. How long will it take to pump the water out of the basement? Answered by Harley Weston. 





Cubic feet to liters 
20080306 

From chase: if 1cu.ft=6.229 imp. gal and1 imp.gal=4.546 liters how many liters does of 128cuft. hold Answered by Penny Nom. 





Oil in a tank 
20080113 

From tanakura: an oil tank contain 208.3 gallons of oil .whenever the amount of oil drops below 70 gallons,an alarm sound
.if 153.4 gallons are pumped into a delivery truck ,how many gallons must be pumped back into the tank in order to shut of the alarm? Answered by Penny Nom. 





How many gallons are in the tank? 
20071203 

From bobby: my tank holds 740 gallons and the dimensions are 8 ft tall and 4 ft diameter the wine is 3 ft 7.5 inches from the top can you figure out how many gallons are in the tank ? Answered by Penny Nom. 





Cubic feet and gallons 
20071119 

From Leonard: Every conversion I find to convert a cubic foot to a gallon is in liquid.
Question, how would 1 cubic foot convert to gallons in dry measurement?
Example say you have 1 Gallon of packing peanuts how many cubic feet would that be?
I can do this and have done it for the heck of it, I took a box 12x12x12 inches, which is a cubic foot,
filled it with packing peanuts the tried to fill a 1 Gallon container, that amount almost fills a 1 gallon
bucket twice.
I even ask a math teacher and was told that 1 cubic foot equaled 7.481 gallons,
then I said that is liquid, teacher ansered yes, then i ask what about dry and got
a response of I do not know. Answered by Harley Weston. 





Can you tell me how many gallons it holds? 
20070925 

From Jeff: Hi my water tank is 10ft long and 45" around,can you tell me how many
gallons it holds.thankyou jeff Answered by Penny Nom. 





How much water to fill my bedroom? 
20070922 

From hector: how can i find out how much water i can fill my bedroom with when it measures 12 ft.x12 ft.x10 ft. Answered by Steve La Rocque and Penny Nom. 





How many gallons per minute? 
20070912 

From Diane: HI
I have a natural water spring and I am trying to determine how many gallons per minute will flow in an 8" pipe? I know one gallon is 231 cubic inches and V=nr2h  so if i had one foot of 8" pipe it would hold 2.6 gallons but I'm looking for the flow rate of how many gallons per minute? Thanks for your help. Answered by Stephen la Rocque. 





A turtle tank 
20070830 

From Natasha: I have a tub that we are going to use for a turtle tank. it is 3 feet long 1foot 7in wide and 1foot 5 in deep. how many us gallons will this tub hold? Answered by Harley Weston. 





How much water is this? 
20070816 

From Judy: Have an area 731 sq. ft with 5" of water all the way around. How many gallons is this? Your help is appreciated. Answered by Stephen La Rocque. 





How many pennies will a half gallon bottle hold? 
20070811 

From Harold: How many pennies will a half gallon bottle hold Answered by Penny Nom. 





A gas tank 
20070801 

From Randy: I am trying to determine the size of the gas tank on a used truck I just purchased. There is no tag on it showing the size. It measures 50" wide by 12" high by 18" deep. How many gallons of gas does it hold? Answered by Penny Nom. 





The volume of a pool 
20070703 

From maria: we have a pool that is 2 feet by 5 feet by 3 1/2 feet  how many gallons of water does it hold Answered by Stephen La Rocque. 





Converting dollars to gallons 
20070612 

From Cynthia: How do I solve this problem?
If a family uses .20 per 100 gallon of water. How many gallons would
$10.00 cost, divided amoung 3 people?
Thanks, Cynthia Answered by Stephen La Rocque. 





Converting units 
20070601 

From SAMANTHA: My hot tub is 61 square feet, how many gallons would it be? Answered by Stephen La Rocque. 





Painting a pool 
20070325 

From vincent: Determine the total cost to put 2 coats of paint on the interior pool
and amount of water needed to fill pool
facts:
a gallon of paint will cover 50 square feet and cost $18.00
the pool will be filled when water is leveled 6" from the top of pool
there are approximately 7.48 gallons of water per cubic foot
Rectangle shape pool 36.0 long and 20.0 wide from top Answered by Stephen La Rocque. 





The volume of a tube 
20070317 

From Tiffany: If I have a 42" diameter tube with 3 1/2" walls and 108" in length. How may gallons of water will it hold?
Thank you,
Tiffany Answered by Penny Nom. 





A water treatment plant 
20070317 

From Elvia: A water treatment plant is built with three cylindrical tanks to contain the water for a town. Each tank has a radius of 15 feet and a depth of 25 feet. If there are 7.5 gallons in a cubic foot of water, approximately how many gallons of water can be treated at the plant at any one time? Answered by Penny Nom. 





How many gallons of water in a mcf (million cubic feet)? 
20070306 

From Willene: How many gallons of water in a mcf (million cubic feet)? Answered by Penny Nom. 





One acre of water, one foot deep 
20070305 

From Jeff: If you have one square acre of ground flooded with one foot of water and a pump that pumps 1000 gallons a minute how long would it take to drain the one acre of ground? Answered by Penny Nom. 





I have 350 ft. of 3/8 ID tubing. 
20070217 

From Fred: I have 350 ft. of 3/8 ID tubing. How many 64 oz. gallons of liquid will it hold? Answered by Penny Nom. 





A gallon of water 
20070214 

From Ashley: Is four 20 oz bottles of water a gallon? How many Answered by Gabriel Potter. 





How many gallons will it hold? 
20070127 

From Taye: I am building a aquarium for my daughter, It is 6 feet long 24 inches high and only 5 inches wide. How many gallons will it hold? Answered by Stephen La Rocque and Penny Nom. 





I need to store 26600 gallons of water 
20070117 

From Mauricio: I have to figure out the "height" of a square tank that is 18' wide and 18' deep, so I can store 26600 gallons of water? Answered by Stephen La Rocque and Penny Nom. 





How many gallons of water in 6600 feet of half inch pipe 
20070109 

From David: How many gallons of water in 6600 feet of half inch pipe Answered by Stephen La Rocque. 





How many gallons of water does an 8 inch pipe that is 50 foot long hold? 
20061229 

From Bryan: How many gallons of water does an 8 inch pipe that is 50 foot long hold? Answered by Penny Nom. 





How many gallons of water will it hold? 
20061217 

From Lois: I have a tank that is 48"long 26" wide and 21 " deep. How many gallons of water will it hold? Answered by Penny Nom. 





Converting cubic meters to gallons and liters 
20061116 

From Lorne: I have a large tank and I would like to know the formula for the conversion. And do you have any other info on web sites that have conversion tools as most of the tools are in u.s and I live in Canada and need the metric conversions. Answered by Stephen La Rocque. 





A container to hold 600 gallons of water 
20061107 

From Cissy: What size rectangular tank would I need to hold about 500600 gallons of water. Answered by Penny Nom. 





A rectangular tank 
20060919 

From Milton: What size rectangular tank will I need to hold 841.5 gallons of water. The water level is 3'0" from the bottom of tank. Answered by Penny Nom. 





Gallons of water in a well 
20060731 

From Martha: I have a shallow water well that is 30 feet in depth.
I have 8 feet of water in the well.
The water well is a 30 inch in diameter.
My question : How many gallons of water is in my tank? Answered by Penny Nom. 





Volume of rainfall 
20060718 

From Randy: Calculate the amount (in gallons)of rainfall .98 inches will put over an area of 3.76 acres. Answered by Stephen La Rocque. 





Gallons in a pool 
20060621 

From Dave: is it possible to find out how many gallons of water is in my 18 foot x 12 foot pool it is also about 4 and 1/2 feet deep? Answered by Penny Nom. 





How many gallons of water are in a 24' X 4' round swimming pool? 
20060615 

From Nicole: How many gallons of water are in a 24' X 4' round swimming pool? Answered by Stephen La Rocque. 





How many gallons in a cubic foot? 
20060424 

From Jana: How many gallons in a cubic foot? Answered by Stephen La Rocque. 





George and his car 
20060310 

From Catrina: George's car gets 3 more miles per gallon during highway driving that it does during city driving. Recently he drove 112 miles on a highway and 150 miles in the city and used exactly 10 gallons of gas. How many miles per gallon does his car get during city driving? Answered by Stephen La Rocque. 





The number of gallons in a tank 
20060309 

From Doug: We have a round tank that is 216 inches long 64 inches wide across ; how do we find the number of gallons it could hold ? Answered by Stephen La Rocque. 





Barrels of oil in a tank 
20060109 

From Francis: How many barrels of oil (42 gallons of oil in one oil tank) would there be in an oil tank that was 15 feet tall and 10 feet across? Answered by Penny Nom. 





The volume of a cylinder 
20060104 

From Doug: I have a Cylinder which is 34" x 72" how many gallons will it hold? Answered by Penny Nom. 





If an acre of land is covered with one inch of water 
20051227 

From Patti: If an acre of land (43560 sq ft) is covered with one inch of water, how many gallons of water cover that acre. Answered by Penny Nom. 





Gallons and cubic feet 
20051119 

From Just interested: I have found that 1 cubic foot will hold 7.48 gallons of gasoline, but I would like to know how to come by this answer. Answered by Penny Nom. 





Cubic feet and imperial gallons 
20051027 

From Dave: What is the volume in cubic feet which is occupied by 1080 Canadian gallons of water? Answered by Harley Weston. 





How many gallons will it hold? 
20051016 

From Scott: I am building a pond and need to convert the cubic dimensions into gallons in order to know what size fountain pump to purchase.
My pond is 1 foot deep x eight feet long x three feet wide.
How many gallons will it hold? Answered by Penny Nom. 





The volume of the earth in gallons 
20050818 

From Daniel: I would like to know how to find the volume of the Earth in gallons. Answered by Penny Nom. 





The volume of a pool 
20050709 

From Douglas: I have a pond that I need to treat with an anti algae solution which needs to applied based on the volume of water in the pond (in gallons).
The rough diameter of the surface of the pond = 25 ft
The depth of the pond = 8 ft
The pond shape is conical
How many gallons of water are in my pond? Answered by Penny Nom. 





Gallons in a tank 
20050402 

From Jim: Would you be so kind as to help me with a problem? My memory has failed me in remembering how to calculate how much liquid in gallons a tank will hold. The tank is 8 feet long and 44 inches in diameter. Answered by Penny Nom. 





If the mixture is 1 pint to 6 gal 
20050313 

From Trey: If the mixture is 1 pint to 6 gal. Do i use 4 pints to 24 gallons of gas Answered by Penny. 





21yd 2ft divided by 5=what? 
20050310 

From A student: 1gallon 3qt divided by 6= what?
21yd 2ft divided by 5=what? Answered by Penny Nom. 





The volume of an aquarium 
20050201 

From Selena: Im trying to figure out the amount of gallons from a rectangle 48x20x12? Answered by Penny Nom. 





Gallons in a cylinder 
20041229 

From Dean: I have 2 cylinders:
Cylinder A = 8'D x 12'H
Cylinder B = 10'D x 15'H
Each 1ft represents how many gallons of fluid?
Cylinder A=?
Cylinder B=? Answered by Penny Nom. 





Volume of a box 
20041118 

From Catherine: I need to find a formula to calculate the amount of liquid would hold. maybe the volume or something. its a square box used to hold liquid on a farm . we want to measure how much liquid it can hold. Answered by Penny Nom. 





130 cc. is ? 
20040820 

From Ayrn: 130 cc. is ?
I have to put 130cc. of petroleum in a bucket how much exactly is that?
Also 110 cc.?
I have to also put 110cc. wood alcohol in a bucket aswell! Answered by Penny Nom. 





Water in a pipe 
20040425 

From Marlean: How much water would be in a 480 foot one inch inside diameter pipe?? In imperial gallons please. thanking you in advance for your help in this matter.
Answered by Penny Nom. 





Gallons in a cylinder 
20040220 

From Jim: Please advise how to use the formula I saw for determining the number of gallons in a cylinder? This is how it was written
V = pi r2 h
. does this mean pie, or 3.14 X radius squared, X the height? If so please use a standard 55 gal barrel (1' R & 3' H) for example? Answered by Penny Nom. 





Water in a tank 
20030902 

From A parent: if a tank is 48 inches long 14 inches wide and 18 inches deep if a yardstick was inserted into the tank and measured 2 inches of water in the tank how many gallons of water would be in the tank. Answered by Penny Nom. 





The volume of a fuel tank 
20030816 

From Phil: I hope you can help me out with a small problem. My boat has a fuel tank measuring 1680mm long x 630mm wide x 130mm high. Can you tell me how much fuel it will hold in both litres and imperial gallons. Answered by Penny Nom. 





How many gallons are in 83 liters? 
20030609 

From Anita: How many gallons are in 83 liters? Answered by Penny Nom. 





Gallons of rain 
20030425 

From Jocelyn: If you have a surface of 6500 square feet and 1 inch of rain falls on the surface, how many gallons of water does this equal? Answered by Penny Nom. 





Gallons in a tank 
20030320 

From Leslie: I am trying to figure the liquid gallons in a water tank that is 19" wide by 29.25" long and is 12.25" high. Could you tell me the formula to figure this out. Answered by Penny Nom. 





Gallons in a cylindrical tube 
20020821 

From Heidi: IF I HAVE A 12" DIA TUBE WITH 1/4" WALL AND 72" IN LENGTH HOW MANY GALLONS OF WATER WILL THIS HOLD Answered by Penny Nom. 





A 6,000 gallon tank 
20020428 

From Someone with a big tank: I was wondering if you can find out information about how much liquid fuel can fit in a 6,000 GAL. tank. Right now I do not have the exact dimensions of this tank but I will have it the 29th of April. Could you please Email me and let me know if you can answer this question after I have the correct specifications. Answered by Penny Nom. 





How many gallons of water in a cubic foot? 
20020414 

From Richard: I am tring to find out how many gallons of water in a cubic foot. Answered by Penny Nom. 





Diameter of a pipe 
20020216 

From Landry: I am trying to calculate the dia. of a pipe 60 inches long that will hold a gallon of water. What is the formula? Answered by Penny Nom. 





Gallons 
20011119 

From Shawn: Do we use British or American gallons in Canada? Answered by Chris Fisher. 





Square feet and cubic feet 
20010121 

From Jenny: How do I convert square feet to cubic feet? If I have 2000 square feet then how many cubic feet do I have? Answered by Harley Weston. 





The length of a cylinder 
20000217 

From Kelly Wichmann: What is the formula to figure the volume of a cylinder? We have a cylinder that is 2 3/4" in inside diameter and a gallon of oil that needs to fill it. We are trying to figure out how long the cylinder should be. Can you help us? Answered by Chris Fisher. 





Mixing oil and gas 
20000125 

From Karen: My hubby is ready to use his snow blower and is supposed to use 50:1 measurement....50 parts gas to 1 part oil......how does he do this if he has 1 gallon of gas? How much oil do we use...need info asap.....hopefully you are there! Answered by Harley Weston. 





Cubic meters to gallons 
19991209 

From Chris Compton: I am trying to convert cubic meters to gallons. Do you have the conversion formula? The problem I am trying to solve is: 59.62 cubic meters to gallons. Answered by Harley Weston.






Liquid capacity 
19990615 

From Bernard Antill: Would you please tell me how many litres of water in a swimming pool that is 24 feet long, 16 feet wide & 4 feet deep. I would appreciate you showing the formula for this calculation. I am a 74 year old male and I cannot find a formula in which I have any faith! I would also appreciate the answer in Imperial gallons. Answered by Penny Nom. 





Cubic feet and gallons 
19990326 

From Karen Coheley: How many gallons in a cubic ft. ?? Answered by Harley Weston. 





Volume in gallons 
19981209 

From Hill Hermit: Please tell me the formula for computing the volume, in gallons, of a cylinder. Thanks from a parent. American gallons, please. Answered by Harley Weston. 

