Sellers Fee Calculator is a web based tool for estimating fees and seller take home amounts for sales on the US eBay marketplace. Users enter an item’s sold price and any shipping paid by the buyer, then select a category rate or enter a custom percentage. The estimate includes the final value fee, a per order fee, and an optional Promoted Listings percentage. The results show estimated total fees, take home before the seller’s own shipping costs, and a line item breakdown. The calculator updates as information is entered and provides category rate presets based on a rate file last updated October 29, 2026. Its estimates use a per order fee of $0.30 for sales of $10 or less and $0.40 for sales above $10 in common cases. The tool uses a flat final value percentage for clarity and notes that sales above $7,500 may qualify for a lower percentage on the portion above that threshold. It also explains that buyer paid shipping is generally included in the fee calculation, while sellers’ out of pocket shipping costs are not. A typical use is to estimate the amount remaining from a sale before listing an item or accepting an offer. The site also links to separate calculators for markup and selling price, eBay net profit, PayPal payment fees, and Whatnot seller fees. Estimates are for planning purposes, are not a substitute for eBay’s official fee information, and are not affiliated with eBay.