Cubic Feet Calculator
Use this tool to help you with your cubic feet calculations. To calculate the volume or capacity of an object or space, simply enter the width, length and height in either feet, inches or a combination of both. Should you need any help with calculating cubic feet manually, please see the information at the bottom of this page.
Whilst every effort has been made in building this cubic feet calculator, we are not to be held liable for any special, incidental, indirect or consequential damages or monetary losses of any kind arising out of or in connection with the use of the converter tools and information derived from the web site. This cubic feet calculator is here purely as a service to you, please use it at your own risk. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate conversions.
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How to calculate cubic feet
Cubic feet is a unit of volume. To calculate the volume or capacity of an item or space in cubic feet you will first need to measure its length, width and height in either feet or inches. Then, we apply some multiplication.
Measurements in feet
If you have measured the width, length and height of your item in feet then the calculation process is quite straight forward. Simply multiply the 3 figures together. As an example, let's say you're looking for the capacity of a box that measures 5ft by 3ft by 2ft. Multiplying those 3 figures together gives you a total cubic feet value of 30ft3.
Measurements in inches
If you have measured the dimensions of your item in inches then we have a little more work to do. Multiply the 3 figures together, giving you a total in cubic inches, and then divide the total by 1728 (as there are 1728 cubic inches in a cubic foot). Let's say you're looking for the capacity of a box that measures 55" x 30" x 15". Multiplying those 3 figures together gives you a total cubic inches value of 24750in3. To convert that figure to cubic feet we divide it by 1728, giving a total of 14.323ft3.
You can learn more about how to calculate cubic feet in this article.
How to convert from cubic inches to cubic feet
One cubic foot equals 1728 cubic inches. So, to convert from cubic inches to cubic feet you should divide your cubic inches figure by 1728. Should you not wish to do this manually, give my volume converter a try.
Converting to cubic feet from other units of volume
To convert to cubic feet from other units of volume, please use the volume converter linked above. You can also convert between cubic yards and cubic feet here.