Cross Stitch CalculatorEditorial Policy
This page explains how the calculators and content on Cross Stitch Calculator are checked for accuracy, how errors are handled, and what standards the writing follows. It is maintained by Ian Welkins, who also writes and verifies everything on the site.
Last reviewed: 16 October 2026.
How the calculators are verified
Every formula is hand-checked against manual calculations before it goes live, including edge cases: single stitches, very large counts, the over-two threads halving on linen, and inches-to-centimeters conversion. The worked examples on each page are computed by the same formulas the calculator uses, so a reader can confirm the math independently.
Every calculator on the site shares one calculation engine rather than separate copies of the logic. That means a fix or improvement in one place applies everywhere, and pages cannot drift out of sync with each other.
Estimates are labeled as estimates
Size and cut calculations are exact arithmetic and are presented as such. Floss, time, and price outputs depend on assumptions — stitches per skein, stitching pace, hourly rate — and every page labels these as estimates, shows the assumptions in use, and lets the visitor adjust them. The site never presents a rule of thumb as an exact measurement.
Corrections
Mistakes are corrected, not hidden. When an error report checks out, the calculator or text is fixed and the correction is noted. Reporting an error is straightforward — see report an error for what to include.
Review cadence
The calculation logic and page content are re-checked on a regular schedule, and immediately whenever a correction is reported. The "Last reviewed" date at the top of this page shows when the checks described here were last completed.
What this site does not publish
No fabricated data, no invented statistics, and no testimonials. The content sticks to what can be checked: the formulas, the worked examples, and the assumptions behind each estimate. If a figure cannot be verified, it is not printed.
Frequently asked questions
How do I report a calculation error?
Use the report an error page. Include the page URL, exactly what you entered, the result you got, and what you expected — that is usually enough to reproduce and fix the problem.
How often is the site reviewed?
The calculators are re-checked on a schedule, and every reported error is checked when it arrives. The “Last reviewed” date at the top of this page shows when those checks were last completed.