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How to use this calculator
Enter your project measurements in the units shown below each field. The calculator updates as you type and gives you a planning estimate for materials, quantities, or capacity.
How it’s calculated
The tool applies the selected shape, dimensions, waste allowance, coverage, or material yield to produce the estimate shown above. Product specifications vary, so use the result as a planning starting point and verify the package or supplier information.
Frequently asked questions
Can I save this result?
Yes. Select “Add to my materials list” to save the item, quantity, unit, and estimated cost to your project list.
Can I use metric units?
Where a calculator uses a unit toggle or unit label, enter the number directly in the unit shown. Do not convert it again.
Related calculators
Browse the full Home & Build calculator hub or open your materials list.