Free e-commerce calculators

Which calculator do you need?

• Checking a product's profit: the e-commerce profit margin calculator, or the platform versions for Etsy, Shopify and eBay.
• Setting a price: the target price calculator works backwards from the margin you want.
• Running ads: the break-even ROAS calculator gives your minimum ROAS and maximum cost per order.
• Choosing where to sell: the platform comparison shows Etsy, Shopify and eBay side by side.
• No inventory: the print on demand and dropshipping calculators include supplier costs.
• Tax: the VAT and sales tax calculator adds or removes tax for the UK, EU, US, Canada and Australia.
• Margin and markup: the profit margin and markup calculator converts between cost, price, margin and markup.
• Resale and social selling: fee calculators for TikTok Shop, Poshmark, Mercari and Depop, with a side-by-side comparison.
• Sales and planning: the discount calculator shows what a sale does to profit, and the break-even calculator shows how many sales a month cover your costs.
• On your phone: every calculator is also in the free profit calculator app for Android, which works offline.
• Payment fees: the PayPal fee calculator and Stripe fee calculator show what you receive, or what to charge to net a set amount.

Frequently asked questions