Mavis Tools

Finance

Profit Margin Calculator

Calculate profit, margin, and markup from cost and selling price.

About this profit margin calculator

Calculate profit margin for products, services, invoices, ecommerce listings, and small business pricing.

Mavis Tools is built for quick utility work: paste the input, get the result, and move on. The page is static-first for speed, and the interactive work happens in your browser. That makes it useful for drafts, calculations, debugging snippets, and repeat everyday tasks.

This tool is intentionally focused. It does one job clearly instead of asking for an account or hiding the result behind a long workflow. Bookmark it if you need a fast profit margin calculator that works on desktop and mobile.

FAQ

What is profit margin?

Profit margin is profit divided by selling price, shown as a percentage.

Can it show markup too?

Yes. It shows markup based on cost.

Is data uploaded?

Yes. The tool runs in your browser, and the input is not uploaded to a server.