PatternScale · independent print-reference tool
Check your pattern’s printed reference in two directions
Enter the intended horizontal and vertical lengths, then the measured range for each printed edge. This checks whether one uniform scale factor is mathematically consistent with both ranges. It does not prove that the pattern, garment size or printer is correct.
Result
No calculation yet.
What to do with a result
A feasible interval is arithmetic only, not a recommended printer setting. Displayed percentages are approximate; narrow intervals can look equal after rounding. Confirm the reference with the pattern maker, print a new test page and measure both directions again before printing or assembling the full pattern. Do not compensate by choosing a different garment size.
Enter a single measurement as equal lower and upper values, or enter your own explicit measurement bounds. We do not invent a measurement tolerance.
Privacy and limits
No PDF upload, tracking, saved inputs or network submission. Everything runs locally in the browser. Editing an input removes the old result and relevant confirmations.
Adobe page-size print controls: Fit can scale; Actual size can crop; Custom Scale is a percentage. These controls do not establish a physical print’s accuracy.