Observed arrival · 2026-10-29
Wrenmetric’s calculators for makers
A set of free browser-based calculators helps makers and small sellers plan orders, price products, manage supplies and check platform reporting.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Makers and small sellers planning orders, pricing or market events
- Worth noticing
- The free calculators cover consignment payouts, craft-fair break-even sales and whether Etsy, Vinted or eBay will report sales to HMRC.
Field notes
The calculator lineup spans seasonal order timing, market-event costs, consignment, sales-channel margins and whole-pack supply purchases. The linked spreadsheet range adds records for craft fairs, shop stock and UK tax-year sales; the homepage says these files work in Google Sheets or Microsoft Excel and include worked examples. The calculators are described as running in the browser, with entered data neither sent nor stored.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
◎NicheUnusually specific use
One card from the complete issue