Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Blocks needed
48
Backing (yards)
6.00
Batting (yards)
2.44
Binding (yards)
0.49
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter quilt width (in).
- 2Enter quilt length (in).
- 3Enter finished block size (in).
- 4Enter fabric width (in).
- 5Enter binding strip width (in).
- 6Read your blocks needed on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
From finished quilt size and block size, get blocks needed plus yardage for backing, batting, and binding strips.
Worked example
Using the values the calculator loads with:
Inputs
- Quilt width: 60 in
- Quilt length: 80 in
- Finished block size: 10 in
- Fabric width: 42 in
- Binding strip width: 2.5 in
Results
- Blocks needed: 48
- Backing (yards): 6
- Batting (yards): 2.44
- Binding (yards): 0.49
What each field means
Inputs
- Quilt width (in)
- The quilt width used in the calculation, measured in in. Starts at 60 in so you have a working example on load.
- Quilt length (in)
- The quilt length used in the calculation, measured in in. Starts at 80 in so you have a working example on load.
- Finished block size (in)
- The finished block size used in the calculation, measured in in. Starts at 10 in so you have a working example on load.
- Fabric width (in)
- The fabric width used in the calculation, measured in in. Starts at 42 in so you have a working example on load.
- Binding strip width (in)
- The binding strip width used in the calculation, measured in in. Starts at 2.5 in so you have a working example on load.
Results
- Blocks needed
- Returned as a whole number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Backing (yards)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Batting (yards)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Binding (yards)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the quilt fabric calculator work?
From finished quilt size and block size, get blocks needed plus yardage for backing, batting, and binding strips.
What do I need to enter?
5 values: quilt width, quilt length, finished block size, fabric width, and binding strip width. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the blocks needed result mean?
It is returned as a whole number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary.
Who is this tool for?
It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Quilt Fabric Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/quilt-fabric
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/quilt-fabric" target="_blank" rel="noopener">Quilt Fabric Calculator — RevenueLab</a> (2026).</p>
Source: [Quilt Fabric Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/quilt-fabric) (2026).