LxWxH Calculator
Calculate volume by multiplying length times width times height (L x W x H). This straightforward volume calculator works for any box, room, container, or rectangular space. Enter three dimensions in any consistent unit and get the cubic volume instantly.
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Result
Enter values above and click Calculate to see your result.
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Formula
How it works: Volume is the amount of three-dimensional space inside a rectangular shape. Multiply the length by the width to get the base area, then multiply by the height to extend it into three dimensions. The result is always in cubic units.
Worked Example
Frequently Asked Questions
Do all three measurements need to be in the same unit?
Yes. If length is in inches, width and height must also be in inches. Mixing units (like inches and feet) will give incorrect results. Convert all dimensions to the same unit first.
Is the result always in cubic units?
Yes. If you enter dimensions in inches, the result is cubic inches. In feet, the result is cubic feet. In centimeters, cubic centimeters (also known as milliliters for liquid volume).
What is the difference between LxWxH and volume?
L x W x H is the formula for calculating volume of a rectangular shape. Volume is the result. They are closely related, with L x W x H being the most common way to express how volume is computed for boxes and rooms.
Can I use this for irregularly shaped objects?
This calculator works only for rectangular prisms (box shapes). For cylinders, spheres, or irregular shapes, you need a different volume formula specific to that geometry.
Can I embed this LxWxH Calculator on my website?
Yes. Click the "Embed" button at the top of this page to customize the size, colors, and theme, then copy the iframe code. Paste it into any HTML page, WordPress site, or CMS. It is completely free, requires no signup, and works on all devices. You can also visit our embed guide at calculory.com/services/embed-calculators for more details.
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