Observed arrival · 2026-11-05
MarginSolver’s Amazon FBA unit-economics workbench
A browser-based calculator for modeling Amazon FBA product costs, advertising spend, and per-unit profit.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Amazon sellers estimating product margins and ad thresholds
- Worth noticing
- Its example profiles range from an $8.99 USB-C cable to a $64.99 foam roller, spanning different FBA size and fee cases.
Field notes
The interface separates product economics into revenue and landed cost, packaged dimensions and weight, inbound placement and inventory health, and advertising and storage. A displayed example uses a $27.99 retail price, $6.20 manufacturing cost, and $5.04 PPC spend per unit, then shows the resulting deductions and profit. The page offers sample profiles across several product sizes and categories, plus baseline pinning and CSV export.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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