Stop guessing margins. Compare true net profit across every major marketplace after all fees, shipping cost & tax — a free ecommerce profit calculator built for serious sellers.
A Free Marketplace Fee Calculator Built for Real Sellers
⚡
Instant Results
No signup, no delays. Enter your numbers and get real profit in seconds — right in your browser.
🎯
Platform-Accurate Fees
Every fee structure updated for 2026 — Etsy 6.5%, Amazon FBA tables, eBay 13.25% and more.
📱
Mobile Friendly
Optimized for every screen — check your margins from your phone at any warehouse or market.
🔒
100% Private
Your numbers never leave your device. No tracking, no data collection. Your business stays yours.
Seller Tips
Pro Tips to Boost Margins
01
Always Include Hidden Fees
Sellers forget packaging materials, label printing, and return shipping. These can eat 3–5% of your margin without you realizing.
02
Price for Offsite Ads First
On Etsy, if you've made $10K+ in a year, offsite ads are mandatory at 12%. Build that into your price from day one.
03
Know Your Amazon Storage Dates
Long-term storage fees spike between Jan 1–Feb 15 and July 1–Aug 15. Clear slow inventory before these windows.
04
Bundle Products to Beat Fees
Bundling items raises your average order value while keeping per-order fixed costs the same — improving overall margin significantly.
05
Compare Platforms Before Listing
The same product can have wildly different net profits on eBay vs Etsy vs Amazon. Run numbers on all three before committing.
06
Set a 20% Margin Minimum
Anything below 20% net margin leaves no room for refunds, ad spend, or rising material costs. Use our calculators to find that floor.
Help
Frequently Asked Questions
Are these calculators really free?
▾
Yes — 100% free, no signup, no credit card, no catch. ProfitCalcu is a free tool for online sellers. All calculations happen in your browser and your data never leaves your device.
How accurate are the fee calculations?
▾
We update all fee tables manually when platforms announce changes. For 2026 this includes Etsy's 6.5% transaction fee, Amazon's latest FBA size tier tables, eBay's 13.25% final value fee, and Shopify's current plan pricing. Always double-check against your platform dashboard for final confirmation.
Which platforms do you support?
▾
Currently we cover Etsy, Amazon FBA, eBay, Shopify, Alibaba, and AliExpress — the 6 biggest platforms for online sellers. More platforms (Walmart, TikTok Shop, Mercari) are coming soon.
Can I use these calculators on mobile?
▾
Absolutely. Every calculator is fully responsive and tested on iOS and Android. No app download needed — just open the page in any mobile browser and start calculating instantly.
What is the difference between gross profit and net profit?
▾
Gross profit is your sale price minus the cost of goods only. Net profit is what's left after ALL deductions — platform fees, payment processing, shipping, packaging, ad spend, and taxes. As a net profit calculator, ProfitCalcu always shows your real take-home amount as an online seller.
Do you support VAT and sales tax?
▾
Yes. Each calculator has an optional tax field where you can enter your VAT rate or sales tax percentage. This is deducted from your final profit figure so you can plan accurately.