Util Tools Free eCommerce Tools Online
Profit margin, markup, Amazon FBA, sales tax, and discount calculators for online sellers.
Profit Margin Calculator
Gross margin, net margin, markup, and a full P&L waterfall.
Open tool →Markup Calculator
Markup from cost and price, plus a markup-vs-margin table.
Open tool →Amazon FBA Calculator
FBA referral, fulfillment, and storage fees with profit verdict.
Open tool →Sales Tax Calculator
Add or remove sales tax for all 50 US states and major countries.
Open tool →Discount Calculator
Sale price, percent off, reverse, and stacked discounts.
Open tool →