Every tool your shop needs,
in one nest.

Shopify Fee Calculator See what Shopify Payments takes from each order and your real profit after processing fees, product cost and shipping. Amazon FBA Profit Calculator Estimate your Amazon profit after the referral fee, FBA fulfilment fee and product cost, with every rate editable for your category. Depop Fee Calculator Work out what Depop and payment processing take from each sale and what actually lands in your account. Poshmark Fee Calculator See Poshmark's flat fee or 20% commission applied to your listing price and your exact earnings per sale. Mercari Fee Calculator Estimate Mercari's selling and payment processing fees with editable rates, and see your payout per sale. Amazon ACoS & ROAS Calculator Work out your ACoS, ROAS and break-even ACoS so you know exactly how much you can spend on ads before a sale stops making money. Break-Even Units Calculator Find out how many units you need to sell to cover your fixed costs, and what happens to that number when you change price or cost. Print-on-Demand Profit Calculator See what you actually earn per print-on-demand sale after the base cost, shipping, marketplace fees and payment processing. TikTok Shop Fee Calculator See what TikTok Shop takes from each order in referral fees, and your real profit after product cost and fulfillment. Amazon FBA Storage Fee Calculator Work out your monthly Amazon FBA storage fee and aged inventory surcharge from your cubic feet, unit count and how long stock has sat in a fulfillment center. Return & Refund Cost Calculator Work out the true cost of a return (shipping, restocking, inspection) and how much returns are quietly costing you every month. Etsy Star Seller Calculator See exactly where you stand against Etsy's three Star Seller requirements, and how many 5-star reviews, on-time shipments or message replies you need to close the gap. Etsy Offsite Ads Calculator Work out whether Etsy's mandatory-for-some Offsite Ads fee is actually costing you money or paying for itself, using your own margin and trailing sales. Etsy Listing Renewal Cost Calculator Your per-sale fees are one cost. This is the other one: what Etsy's $0.20 listing renewals add up to across your whole shop, every month and every year. Etsy VAT & Take-Home Calculator For EU and UK sellers: see how much VAT is baked into a sale, what Etsy's fees take on top of that, and what you actually keep. Etsy Ads (Onsite) ROAS Calculator Work out whether your Etsy Ads (onsite, seller-controlled) budget is actually paying for itself, using your own click cost, conversion rate and margin. StockX Seller Level Calculator See your current StockX seller level and fee rate from this quarter's sales, and exactly how many more sales or how much more volume gets you to the next level down in fees. eBay Store Subscription Break-Even Calculator See whether your eBay Store subscription is actually paying for itself from the free-listing allowance you use and the final value fee discount you get, or how far short it falls. Posh Ambassador Progress Calculator See exactly where you stand against Poshmark's Posh Ambassador requirements, and how many shares, sales or listings you still need to earn the badge. Amazon Low-Price FBA Tier Calculator Check whether your item qualifies for Amazon's discounted Low-Price FBA fee tier under $10, and exactly how much that saves you per unit and per month. Poshmark Bundle Discount Calculator See what a Poshmark bundle discount actually costs you once Poshmark's fee and your shipping are taken out, and what lands in your pocket per item. Etsy Fee Calculator Work out exactly what Etsy takes from each sale — listing fee, transaction fee, payment processing and Offsite Ads — and see your real profit per item. eBay Fee Calculator Estimate eBay final value fees by category, add the per-order fee, and see your net profit after product and shipping costs. PayPal Fee Calculator See how much PayPal deducts from a payment, and reverse-calculate what to invoice so you receive the exact amount you want. Profit Margin Calculator Calculate profit margin, markup and break-even price from your cost and selling price — or find the price you need for a target margin.