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FibreCalcs

Our Reviewers

Every calculator and guide on FibreCalcs is independently reviewed by a named academic at the Faculty of Textile Technology (FTT), University of Zagreb. Two reviewers cover the site between them — one for the yarn and fibre side, one for the woven-fabric and clothing-construction side. Each one works through the formula implemented in code, confirms it matches the cited source, and flags anything that does not add up.

Reviewers are listed below in the order they signed off. Their scope is fixed to the department they actually work in — a textile-materials professor does not sign off on a garment construction calculator, and a clothing-technology associate professor does not sign off on yarn fibre maths. The split is deliberate: the right reviewer for the page is the one whose field the page is in.

Prof. dr. sc. Snježana Salopek Čubrić

Professor, Faculty of Textile Technology, University of Zagreb

Snježana Salopek Čubrić is a Professor in the Department of Textile Materials and Care at the Faculty of Textile Technology, University of Zagreb. Her academic field is the materials side of textile work — fibre properties, yarn structure, and the relationships between fibre weight, gauge, and the finished fabric. Her review on FibreCalcs covers the calculators where yarn maths is the substance of the page: gauge swatch reconciliation, yarn yardage estimation, blanket and granny-square fibre planning. She does not sign off on woven-fabric assembly or garment construction; those calculators are checked by a clothing-technology colleague.

Calculators reviewed (4)

Guides reviewed (1)

Doc. dr. sc. Slavenka Petrak

Associate Professor, Faculty of Textile Technology, University of Zagreb

Slavenka Petrak is an Associate Professor in the Department of Clothing Technology at the Faculty of Textile Technology, University of Zagreb. Her field is pattern construction, garment assembly, and the cutting-and-piecing maths that sits behind sewing and quilting work — the same body of knowledge that turns a measured drop into a curtain or a stack of squares into a quilt top. Her review on FibreCalcs covers the woven-fabric and garment-side calculators: fabric yardage, curtain and Roman blind drops, quilt piecing and binding, plus the unit conversions that feed those workflows. She does not sign off on yarn or fibre calculators; those are checked by a textile-materials colleague.

Calculators reviewed (22)

Guides reviewed (6)

How review works

Before a calculator ships, the formula is sourced from a published textile reference — a fabric-spec sheet, a yarn-weight standard, a documented workroom practice, or a textile-engineering textbook. The implementation is coded against that reference, worked examples are run through the actual function, and the intermediate values printed on the page are the values the code produces. The reviewer then reads the formula, checks it against the cited source, runs the worked examples by hand, and signs off only if the maths matches end to end.

You can read more about sourcing standards and the broader build process on the editorial policy page, and more about who builds the site on the about page.