About FabricYardageCalculator.com
We build free planning tools and plain-language guides to make fabric quantities easier to understand before you buy or cut.
Why This Site Exists
A simple question such as “How much fabric do I need?” can involve fabric width, project dimensions, seam and hem allowances, pattern repeat, fullness, backing, lining, and cutting waste. Repeating that arithmetic by hand is slow, and small assumptions can change the answer.
FabricYardageCalculator.com handles the repeatable math and shows the main assumptions behind the result. The goal is to give beginners a useful starting point while making it clear when a pattern, measured cut plan, retailer, or workroom should make the final decision.
What We Publish
The home page includes a quick estimate for identical rectangular pieces. Five dedicated calculators handle more project-specific inputs:
Upholstery
Furniture panel templates, waste settings, welt, and skirts
Sewing & Garments
Simplified garment pieces, fit, lining, and interfacing
Curtains & Drapes
Panel widths, fullness, headers, lining, and repeats
Quilting
Block grids, backing, binding, sashing, and borders
Cushions & Pillows
Box, bench, round, and bolster cutting pieces
We also publish yardage reference charts, step-by-step guides, and fabric-specific buying guides that explain the choices surrounding the calculation.
How the Calculators Work
Each dedicated calculator has its own calculation engine. Upholstery uses generalized furniture panels. Sewing builds simplified garment-piece bounds. Curtains calculate panel widths and drops. Quilting builds a whole-block grid. Cushions calculate wrap, boxing, and circular pieces. The quick home tool uses a simpler rectangular-cut method.
The exact rules, percentages, rounding steps, fallbacks, and known limitations are documented on the methodology page. Publishing those details makes it possible to understand why a result changed and to decide whether the model fits a particular project.
How We Check Our Work
The five dedicated calculation engines have automated tests for representative defaults, option changes, rounding, input limits, oversized pieces, and finite results across the supported project types. When a bug is reproduced, the preferred correction is a code change accompanied by a test for that case when practical.
These checks confirm that the software follows its written rules. They are not a claim that every estimate has been approved by a professional body or tested against every real project. Fabric behavior and construction choices vary, so the calculators remain planning tools.
Our Publishing Standards
Accuracy
Calculator copy should match the current code. Numerical examples should be reproducible from the stated inputs, and estimates should be labeled as estimates.
Transparency
We publish the calculation rules and important limits instead of describing a result as exact when the engine uses a shortcut or generalized template.
Useful Review
Calculator logic and related explanations are reviewed when the code changes, an automated check fails, or a reproducible correction request is received. We do not state a fixed review schedule that cannot be verified.
Commercial Independence
A commercial relationship must not change a calculator formula or turn a paid placement into an editorial recommendation. Affiliate or sponsored links, if used, should be identified where they appear.
Corrections and Questions
A useful calculator report includes the page, every input, the result shown, and the result you expected. Send those details through the contact page. We first reproduce the calculation, then check whether the problem is in the code, the explanation, or a project assumption. Our editorial policy explains how corrections are handled.
Important Limit
Results are estimates for planning. Actual yardage can change with the cutting layout, nap direction, motif placement, fabric shrinkage, defects, seam choices, and the construction method. Check an actual sewing pattern or cut plan before ordering costly fabric, and keep all fabric for one visible project in the same dye lot when possible.
Related Pages
Read how this site handles calculations, corrections, privacy, and contact requests.