Flooring Calculator
Work out how many boxes of flooring a room needs, including waste, plus total cost and the offcut you should keep for repairs.
Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.
How much waste to allow
Ten percent covers a straightforward rectangular room laid parallel to the walls. Diagonal layouts, herringbone patterns and rooms with lots of doorways, alcoves or angles need 15–20%, because every cut piece has an unusable remainder. Buying an extra box and keeping it is cheaper than discovering three years later that your batch has been discontinued.
How to use the Flooring Calculator
- Fill in each field with your own figures — the defaults are only there as an example.
- The result updates as you type, so there is no button to press.
- Check the breakdown under the main result for the supporting numbers.
- Use the copy button to take the result with you, or share the link to reload the same inputs.
Flooring Calculator — frequently asked questions
Is this flooring calculator free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
How accurate is the result?
The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.
Can I use it on my phone?
Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the flooring calculator.
- flooring calculator
- tile flooring estimate
- flooring square footage
- hardwood flooring calculator
- laminate flooring calculator
- how many boxes of flooring
- how much flooring
About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error