Why use the eCom Fees Calculator?
E-commerce platforms update their fee protocols constantly. We maintain an actively audited database of the exact commission tiers, payment processing rates, and category-specific thresholds for all major marketplaces.
How It Works
Calculating your exact net profit shouldn't require reading through dense developer documentation or financial fee schedules. Our unified system makes it effortless:
Choose from eBay, Amazon, Etsy, Shopify, PayPal, Mercari, Poshmark, or Depop.
Input your item cost, selling price, shipping charges, and category.
Instantly view a breakdown of every fee, your exact net profit, and ROI margin.
Verified 2026 Fee Schedules
We don't use guesses or outdated formulas. Every calculator on our platform is powered by an auditable engine. Look for the "Verified" badge on our calculators to see exactly when the marketplace data was last confirmed against official documentation.
- Piecewise accuracy: We calculate exact sub-category margins, break-even limits, and maximum caps.
- Cross-Platform comparison: Quickly evaluate which platform yields the highest net profit for your specific item cost and category.
- Target pricing: Use our Reverse Calculator to figure out exactly how much you need to charge to reach your desired profit margin.