For many beginners on Amazon, the first order is often "sold at a loss without knowing it." The problem isn't effort—it's that they haven't done the math: after referral fees, shipping, ads, and exchange rates, almost nothing is left. These 3 free tools settle the three most critical accounts of cross-border selling—profit, search, and payout—all at once. They all run locally in your browser, no sign-up, no charge.
1. FBA Profit Calculator: Exactly How Much You Earn per Order
Amazon's deductions are dizzying: beyond the sale price, there's product cost, inbound shipping, the FBA fulfillment fee, the Amazon referral fee (usually 8%–15%), ad spend, and return losses. Judging profit by "price minus cost" is almost guaranteed to be wrong.
Use the FBA Profit Calculator: enter price, cost, shipping, FBA fee, referral fee rate, and ad rate to get the net profit and margin per order instantly. Rule of thumb: if net margin is below 15%, it's usually not worth it unless volume is huge. Understand each order's profit before you talk about "getting rich slowly."
2. Title Length & Keyword Density Checker: Get Found by Buyers
Amazon titles have a 200-character limit; over that, they get truncated. Keyword density isn't "the more the better"—your core keyword appearing 1–2 times, placed at the very front of the title, is safer.
Use the Title Length & Keyword Density Checker: paste your title to instantly see whether it exceeds 200 characters (flagged in red if it does), the word count, and how many times your core keyword appears with its density. Run it after writing to confirm you're under the limit and the core keyword is upfront—then launch with confidence.
3. USD Payout Exchange Converter: See Your RMB Take-Home
Amazon settles with you in USD, but you spend in RMB, separated by the exchange rate and withdrawal fees (~1%–3%). Many sellers forget this layer when calculating profit, ending up with "dollars earned, RMB spent" and no actual gain in hand.
Use the USD Payout Exchange Converter: enter today's rate once (just once at market open each day) to convert net USD into your RMB payout. You can also paste the "net USD per order" from the FBA calculator to see your RMB take-home at a glance.
🚀 Bonus: AI Smart Sourcing Tool Coming Soon
The 3 tools above solve "the math," but product selection itself—what actually sells profitably—is the most brain-burning part. We're polishing an AI Smart Sourcing Tool: enter a category and criteria to generate a product shortlist + listing draft in one click, turning "gut-feel sourcing" into "data-driven sourcing."
Once launched, it will connect with the free tools above: validate a product's profit in the FBA Profit Calculator first, then use the AI Sourcing tool to batch-find similar high-margin products. Stay tuned—and feel free to use the 3 free tools to get your numbers straight first.
Quick Start Checklist
- Open the FBA Profit Calculator and check whether your target product's net margin is > 15%;
- Use the Title Checker to keep the title under 200 characters with the core keyword upfront;
- Use the Exchange Converter to turn net USD into RMB and confirm your take-home payout;
- Watch for the AI Smart Sourcing tool launch to replicate your high-margin playbook at scale.
👉 All three tools are free and registration-free: FBA Profit Calculator · Title Checker · Exchange Converter