Loom Plan: Weaving Calculator

Plan warp and weft, keep weaving revisions, and compare finished samples.

Calculate warp and weft from your dimensions, sett, picks, take-up, shrinkage and loom-waste assumptions.
Switch metric and imperial display without changing the underlying measurements.
Keep planning revisions and link each finished sample to its original revision.
Record actual measurements and finishing notes so your next plan has useful context.

Included free
The calculator, one active plan, unlimited archived plans, samples, revisions, JSON backups and CSV export.

Permanent Pro
Several active plans, reusable presets and side-by-side plan comparisons. One optional, non-consumable purchase. No subscription. The current local price is shown by Google Play before you buy. Restore access with the Google Play account that purchased Pro.

Your records stay on your device
No app account, ads or cloud notebook. Core recordkeeping works offline. Optional purchase and restore operations need an internet connection and use Google Play and RevenueCat. Backups and CSV exports are free; keep a backup before clearing app storage or uninstalling.

Calculations are estimates based on your assumptions, not guaranteed yarn yields. No weaving-draft editor or loom control.

English interface.
Support: pierdo.dev@gmail.com
Privacy: https://pierdo.net/loom-plan/privacy/

Recent changes:
• Sample dates and backup and CSV file names use your local date, even late in the evening.
• With large text, Archive and the tab names fit, and live totals shrink to fit.
• Messages such as "Plan saved." stay on screen when you have scrolled.
• Clearer messages name the field and its limits; a damaged backup says what is wrong; items take whole numbers only.
• Plans open and save faster when you have many.
• A cancelled purchase says nothing was bought.