Free tools for smarter online selling.
Know your real profit before you spend another dollar.
Free calculators for online sellers. Understand your margins, advertising break-even points, marketplace fees, and product pricing.
No signup · Free to use · Transparent formulas
Results are estimates. Formulas and assumptions are documented on each tool, and marketplace-specific rates are sourced from official documentation where they apply. Read the methodology. Profit For Sellers is not affiliated with Shopify, Etsy, TikTok, or other marketplaces.
Popular Calculators
E-commerce Profit Calculator
Estimate profit after product cost, shipping, fees, and ads.
Shopify Profit Calculator
Model Shopify selling costs alongside product and ad spend.
Break-Even ROAS Calculator
Find break-even ROAS, maximum CPA, and target ROAS from unit economics.
Product Pricing Calculator
Work backward from costs and target margin to a selling price.
Etsy Fee Calculator
Estimate Etsy fees, net proceeds, profit, and break-even item price.
TikTok Shop Fee Calculator
Estimate TikTok Shop referral fees, creator commission, profit, and break-even item price.