How many gallons of water are in a circular container measuring 18 inches high and four feet across?

I think you will be looking at about 500 gallons.
598.4 US gallon.
498.3 UK Imperial gallon.

You can convert pipe size to gallons per minute of flow by calculating the cross-sectional area of the pipe and making some reasonable assumptions about pipe volume and the rate of flow. Pipe sizing is measured by the internal diameter of the pipe, not the overall outside diameter. Once determined, the overall volume can be calculated. Pipe flow is described in gallons per minute. Shorter lengths of pipe will have a greater flow than a longer length of the same diameter. This is caused by internal resistance of the pipe itself. By the same reasoning a larger diameter pipe will have a greater flow or GPM than a smaller pipe at the same pressure or flow rate. Pressure is described as pounds per square inch. The square-inch measurement is determined by the area of the pipe. The pounds are the amount of force that is placed on the liquid to push it through the enclosed space.With that background, you can estimate the flow based on the pipe size.
Find the cross-section area of the pipe. Area is equal to pi times the radius squared or a = 3.14 x r2. A two-inch diameter pipe would have a cross-section area of 3.14 x 12 or 3.14 square inches.
Understand that water has a certain pressure associated with the height of that water. One pound of water pressure, or 1 PSI, is equal to 2.31 feet of elevation in height. In other words, a 1-inch column or pipe of water that is 2.31 feet high will have a pressure of 1 PSI. The overall height -- not volume -- of the pipe corresponds to the pressure. A 6-inch diameter pipe that is 2.31 feet high will only have 1 PSI.
Find the volume of the 2-inch diameter pipe in Step 1 that has a length of 10 feet. Ten feet is equal to 120 inches. Multiply 3.14 square inches, the cross sectional area, times the length. The volume of the pipe is equal to 376.8 cubic inches of volume.
Convert cubic inches into cubic feet. One cubic foot equals 1,728 cubic inches. Divide 376.8 cubic inches by 1,728 cubic inches per cubic foot and the answer is .218 cubic feet. This means that the 2-inch diameter pipe that is 10 feet long has an internal volume of .218 cubic feet.
Calculate the amount of water that can be contained in the section of pipe at any given time. One cubic foot of water is equal to 7.48 gallons. Multiply 7.48 gallons by .218 cubic feet and the amount of water in the pipe is equal to 1.63 gallons.
Find the GPM if the flow of water is one foot per second. Multiply the one-foot per second flow by 60 seconds per minute and the flow is now 60 feet per minute. In other words the water will flow through the 10-foot pipe six full volumes for every minute. Since the piping contains 1.63 gallons per 10 feet of pipe, multiply 1.63 by six and the final GPM is equal to 9.78 GPM of water flow from the 2-inch diameter pipe.

In order to calculate cubic feet you must multiply the LxWxH (where L=length, W=width and H=height or depth) making sure all three numbers are in feet. For example: a box 3' long by 2' wide by 1.5' high would contain 9 cubic feet of space. (3x2x1.5). If one or more of the measurements is in inches then you must convert it to feet or the others to inches. If all three measurements are in inches multiply them and then divide your answer by 1728 to give cubic feet because their are 1728 cubic inches in a cubic foot. (12x12x12). For example the same problem above in inches would be: 36x24x18=15,552cubic inches. Divide 15,552 by 1728 = 9 cubic feet

volume requires 3 measurements:
height, width and depth (from front to back)

Once you have the 3 dimensions you can multiply them together to get the volume in whatever unit you measure in, Centimeters/Inches/feet etc.

once you have your volume you can google a conversion table to figure out your unit to gallons/litres/ etc.

http://metricunitconversion.globefeed.com/Metric_Conversion_Table.asp

18,600 gallons (length x width x depthx 7.51 =gallons)

72 x 29 x 24 = 50,112 cubic inches / 1728* = 29 cubic feet. There are 7.48 gallons per cubic foot, so the tank is actually 216.92 gallons, assuming the dimensions given are inside measurements. I hope you have a strong stand and floor because the water alone weighs 1735.36 pounds (8 pounds per gallon).

*12 x 12 x 12 = 1728 (cubic inches to cubic feet conversion)

I don't have the number for you, but I can offer a method for measuring it. First, the next time you do laundry, set the water level switch to where you will use it for the dyeing task. With the lid open, but with no clothes inside, turn on the washing machine. Observe and note the level of the water when the machine stops filling. Measure the depth of the water. Add clothes and detergent and wash in the usual manner - you don't need to waste that water.

Next, pour four gallon jugs of water into a clean five-gallon pail, and mark the level in the pail (four gallons in the pail is much easier to handle than a brim-full five gallons). Pour that into the machine, and measure the depth. Put in another four gallons of water, and measure the depth again. If the bottom part of the agitator is covered by the first four gallons, you can can calculate from the increase in depth made by the second four gallons how many more gallons you need to get to the fill depth. (The bottom of the agitator takes up more volume per inch of depth than the center and top,) If the bottom of the agitator is not covered by the first four gallons, but is covered by the second four, then add a third four-gallon pour and measure the depth once more.

Here is an example measurement: water depth on chosen load size setting: 16 inches.

Depth on first four gallons: 2 1/2 inches (some of the water is under the bottom of the inner tub). The agitator bottom taper is almost covered, but not quite.

Depth on second four gallons: 7 inches. The water level is above the bottom section of the agitator, so from this point the water depth will increase by the same amount per gallon added.

Depth on the third four gallons: 11 inches. We can now see that from this point, adding four gallons makes the water level go up four inches, so to reach the 16 inch mark,we need five more gallons. The total will be 4+4+4+5 = 17 gallons.

For what it's worth, there's about 7.48 gallons per cubic foot. If your machine's outer tub holds an additional cubic foot of water, my example numbers may be roughly what you will get.

Inch is a measure of length and cubic feet is a measure of volume. There is no conversion between them. It's just like trying to convert inches to gallons, it can't be done.

Now if you want to convert cubic inches to cubic feet, that's possible. Since there are 12 inches to a foot, there are 12-cubed or 1728 cubic inches in a cubic foot.

1. Torque
   • Torque is a measurement tool that shows a vehicle's ability to tow and accelerate. The 2000 Sportage generates 135 ft-lb of torque when measured at 4,000 rpm. It tows up to 2,000 lb.
     
   Power
   • The 2000 Sportage features a 2.0-liter I4 engine that produces 130 horsepower at 6,000 rpm. Five-speed manual overdrive transmissions are standard for all models, but the four-door models offer the option of getting a four-speed automatic overdrive transmission instead. The compression ratio is 9.1 to one and the engine displacement is 1,991 cc. The bore and stroke are 3.26 and 3.62 inches.
     
   Fuel
   • All manual versions get 20 miles per gallon in the city and 23 mpg on the highway. The automatic four-wheel drive models get 19 mpg in the city and 22 mpg on the highway. The automatic two-wheel drive models get 18 mpg in the city and 21 mpg on the highway. The two-door model has a 14-gallon fuel tank and the other models have a 15.8-gallon fuel tank.
     
   Measurements
   • The two-door Sportage is 156.4 inches long with a wheelbase of 92.9 inches. The four-door versions are 170.3 inches and the wheelbase is 104.3 inches. All versions are 68.1 inches wide and 65 inches tall. The front and rear tracks are both 56.7 inches. All versions sit 7.9 inches off the ground. The two-wheel drive, four-door versions weigh 3,186 lb if manual and 3,230 lb if automatic. The two-door, two-wheel drive model is 3,108 lb. The two door, four-wheel drive model is 3,230 lb. The four-door, four-wheel drive models are 3,352 lb if manual and 3,396 lb if automatic.
     

Read more: 2000 KIA Sportage Torque Specs ' eHow.com http://www.ehow.com/list_7530119_2000-kia-sportage-torque-specs.html#ixzz1xfAstACS

Hi, W/D here.

Here's an easy way to calculate your cubic feet: measure and multiply (in inches) the width X depth X height, then divide by 1728. This will give you cubic feet.
For example, if a microwave measured 18" wide X 18" deep X 12" high, it would be 3888 cubic inches; divided by 1728 (cubic inches in one cubic foot) = 2.25 cu.ft.
Best regards, --W/D--

Please take a moment to rate this solution. Thanks. --W/D--