Amazon Instant Net Margin & Breakeven Badge

Instant Net Margin, ROI, FBA Fees & Breakeven Calculator for Amazon sellers. Zero dependencies, 100% local.

Amazon Instant Net Margin & Breakeven is the ultimate Chrome extension designed for Amazon FBA sellers who want to instantly calculate net margins, ROI, FBA fees, and breakeven prices directly on product pages. Forget about complex spreadsheets or manual calculations during your product research. This powerful FBA calculator tool injects a clean, native widget right above the Buy Box, giving you complete financial analysis in real time. ⭐ KEY FEATURES & BENEFITS - ⚡ Lightning-Fast Performance: Built entirely with vanilla JS and CSS3, ensuring zero lag, zero bloat, and no heavy frameworks slowing down Amazon pages. - 🔒 100% Privacy Guaranteed: Zero external servers, zero tracking API calls, and no account required. All your product research and cost data stay strictly inside your browser. - 🌐 Multi-Marketplace & Multi-Language: Automatically adapts to your browser language and computes accurate local currencies and VAT rates for Amazon .it, .de, .fr, .es, .co.uk, and .com. 📊 WHAT IT CALCULATES IN REAL TIME - Net Profit, Margin & ROI: Immediate evaluation of product profitability as your costs change. - Breakeven Price: Know your exact minimum selling price limit so you never sell at a loss. - Smart FBA Fee & Referral Detection: Automatically reads product weight to estimate logistics and FBA fulfillment fees, while detecting categories for precise Amazon referral fees. 📋 KILLER FEATURE: 1-Click Excel & Google Sheets Export A convenient button lets you copy a clean, formatted TSV row ready to be pasted directly into Excel or Google Sheets, saving the date, ASIN, title, price, total fees, profit margins, ROI, and product URL. 💡 HOW TO USE 1. Open any product detail page on Amazon. 2. Watch the widget appear automatically inside the Buy Box area. 3. Enter your product purchase cost (COGS) and view all financial metrics instantly!