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The tank has a maximum holding capacity of 25.45 gallons US. Filled to within 2" of the top it will hold 22.9 gallons US. For your future reference the calculation is " length in inches x width in inches x height in inches divided by 231.
A 20 Gallon tank can hold up to 20 gallons of water.
The tank has a volume of 48 inches x 18 inches x 15 inches or 12960 in3. The average imperial gallon has a volume of 231 cubic inches. 12960 in3 ÷ 231 in3/US gallon = 56.10 gallons.
92928 cubic inches
A 15 cubic foot tank will hold a maximum of about 112.2 gallons of water.
Making the assumptions that these measurements are in inches, and that the fish tank is a perfect cuboid, the volume of the fish tank is 49 x 19 x 21 = 19,511 cubic inches.Rounded to two decimal places, this is equal to 70.47 gallons.
Filled to capacity, the 1-ft cubed tank will hold 7.481 gallons of water.
12*45*59 cubic inches = 31,860 cubic inches
This is quite a large tank. Allowing for 1 inch at the top without water, the tank would contain around 440 US Gallons of water.
If you mean inches, the tank can hold up to 83.81 gallons. If the dimensions are in feet, the tank can hold up to 144,822.86 gallons.
Most water tanks will be labled by size. That means how many gallons the tank hold is what it is called. A 100 gallon tank will be sold as such and a ten gallon tank will be labled that way. So just check the labels. Most water tanks hold about thirty gallons of water. Of course the bigger the tank the more water it will hold. And you can purchase apartment sized water tanks that will hold a lot less then the average water tank.
A tank of 21 inches wide, 8 inches deep and 59 inches long will hold 36 gallons of gas. These gallons refers to US gallons.
The tank has a maximum holding capacity of 25.45 gallons US. Filled to within 2" of the top it will hold 22.9 gallons US. For your future reference the calculation is " length in inches x width in inches x height in inches divided by 231.
20"x16"x12"=3840 cubic inches. 1 gal of water has a volume of 231 cubic inches therefore the nominal/quoted/rated volume of water the tank will hold is 3840 divided by 231 which is just over 16.6 gallons of water. The tank will never hold that amount of water when keeping fish. At least 1 inch will be left empty at the top and if the tank is set up with plants lights etc an average of 2 inches will be taken up with gravel at the bottom. So 3 inches is a quarter of 12 (which is the depth of the tank) that is reducing the holding capacity of the tank by one quarter so 16.6 divided by 4 will give how much less water the tank will actually hold. That amount is 4.15 gallons. So the tank will actually hold 16.60 minus 4.15 gallons. Which leaves you with 12.45 gallons if it is a planted tank. Applying the basic rule of fishkeeping "1" of fish needs a minimum of 1 gallon of water, you will see that your tank can house a maximum of 12.5 inches of fish.
A 20 Gallon tank can hold up to 20 gallons of water.
The tank has a volume of 48 inches x 18 inches x 15 inches or 12960 in3. The average imperial gallon has a volume of 231 cubic inches. 12960 in3 ÷ 231 in3/US gallon = 56.10 gallons.
A round tank 36 inches wide and 10 feet deep holds 528 gallons.