> For the complete documentation index, see [llms.txt](https://sewlore.gitbook.io/sewlore-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sewlore.gitbook.io/sewlore-docs/choose-a-working-tool-and-keep-the-record.md).

# Choose a Working Tool and Keep the Record

Choose a tool for the recorded question. Stretch compares relaxed, stretched and released spans; print scale compares two sides with one target. Neither calculation predicts garment fit or certifies fabric performance.

The button calculator places centres on a straight opening. Its count must be an integer from 2 to 100, and the end offsets must leave a positive centre-to-centre span. Changing its unit selector reinterprets entered numbers rather than converting them.

The rectangular-layout calculator compares uniform grids, optionally turned 90 degrees. Enter full cutting dimensions; the edge margin is removed from both edges. It does not search mixed-orientation nests or handle shaped pattern pieces. Grain, nap and motif matching require separate decisions.

Keep original readings, units and unrounded results together. Use Sewlore’s measurement-methods guide to record conditions and decide what to remeasure. All examples are hypothetical software inputs. Prepared by Sewlore with AI-assisted writing; arithmetic and documented behavior checked locally. No physical print, fabric or garment tests were performed.

[Open the stretch and print tools](https://gokimedia.github.io/sewlore-sewing-tools/)

[Open the button-centre calculator](https://gokimedia.github.io/sewlore-sewing-tools/resources/button-spacing-calculator.html)

[Open the rectangular-grid calculator](https://gokimedia.github.io/sewlore-sewing-tools/resources/rectangular-fabric-layout.html)

[Read Sewlore’s measurement-methods guide](https://sewlore.com/pages/fabric-measurement-methods-guide)