How to Find the Volume of a Cylinder How to Find the Volume of a Rectangular Prism

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Volume is the amount of three-dimensional space taken up by an object. The computer or phone you're using right now has volume, and even you have volume. Finding the volume of a rectangular prism is actually really easy. Just multiply the length, the width, and the height of the rectangular prism. That's it! This article will walk you through the process step-by-step and show you an example.

Steps

1. 1

   Find the length of the rectangular prism. The length is the longest side of the flat surface of the rectangle on the top or bottom of the rectangular prism.^[1]

   • Ex: Length = 5 in.

2. 2

   Find the width of the rectangular prism. The width is the shorter side of the flat surface of the rectangle on the top or bottom of the rectangular prism.^[2]

   • Ex: Width = 4 in.

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3. 3

   Find the height of the rectangular prism. The height is the part of the rectangular prism that rises up. Imagine that the height is what stretches up a flat rectangle until it becomes a three-dimensional shape.^[3]

   • Ex: Height = 3 in.

4. 4

   Multiply the length, the width, and the height. You can multiply them in any order to get the same different result. The formula for finding the volume of a rectangular prism is the following: Volume = Length * Height * Width, or V = L * H * W.^[4]

   • Ex: V = 5 in. * 4 in. * 3 in. = 60 in.

5. 5

   State your answer in cubic units. Since you're calculating volume, you're working in a three-dimensional space. Just take your answer and state it in cubic units. Whether you're working in feet, inches, or centimeters, you should state your answer in cubic units.^[5]

   • 60 will become 60 in³.

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Add New Question

• Question

  If l=45, w=15, h=x, how do I find the volume?

  

  You have to know the height. Otherwise, you'd have to say the volume is 675x cubic units.

• Question

  Can you give me another example? I still don't get it.

  

  Remember that length x width x height. A rectangular prism that is five inches high, ten inches long, and two inches deep will have a volume of 100 square in. 5x10x2=100.

• Question

  How can I calculate the dimension when I know the volume?

  

  The rectangle's area, times the prism's height vertical to the rectangle, gives the volume; various combinations of dimensions give the same volume, so if you know the volume, and want the dimensions, you will find many sets of dimensions. For example volume 24 could give the length, width, and height of 2, 2, and 6; or 2, 3, 4; or 1, 1, 24; and so on.

• Question

  How do I convert cubic centermeters to litres?

  

  There are 1,000 cubic centimeters in one liter.

• Question

  How do I calculate the width when I have the volume, length and height?

  

  Divide the volume by the length, and then divide that by the height. Alternatively, multiply the length and the height, and then divide the volume by that number.

• Question

  How do I find the volume of a rectangular box that is missing some cubes at the top?

  

  Find the volume of one cube, then multiply that by the number of cubes. You could also find the volume of the rectangular prism, including the missing cubes, then subtract the volume of the cubes missing.

• Question

  What does volume mean?

  

  It refers to the three-dimensional space that an object occupies.

• Question

  What is the area of a rectangular prism?

  

  There are three different faces on a rectangular prism. Calculate each by multiplying the length by width, add the three results together and multiply by 2 to work out the total area.

• Question

  How many cubic inches in a gallon?

  

  231.

• Question

  Do you put the unit squared after your answer?

  

  No. Volume is expressed in units cubed.

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About This Article

Article SummaryX

1. Find the length, width, and height of the rectangular prism.
2. Multiply the length, width, and height to get the volume.
3. Write the answer in cubic units.

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How to Find the Volume of a Cylinder How to Find the Volume of a Rectangular Prism

Source: https://www.wikihow.com/Calculate-the-Volume-of-a-Rectangular-Prism

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