BizGrowthTools
No signup · No cost · Runs in your browser

Free calculators for small businesses and online sellers

A growing collection of free tools built for people selling online — starting with the fee math Etsy, Shopify, and Amazon sellers have to work out before pricing a product.

Try the Etsy Fee CalculatorSee all tools

Available tools

E-commerce

Etsy Fee Calculator

Estimate listing, transaction, payment processing, and offsite ads fees for an Etsy sale, plus your net proceeds and profit.

E-commerce

Etsy vs Shopify Calculator

Compare Etsy and Shopify fees side-by-side based on your monthly revenue and order volume, and find your break-even point.

E-commerce

Amazon FBA Fee Calculator

Estimate Amazon referral, fulfillment, and storage fees for an FBA product, plus your net proceeds and profit per unit.

SEO

Google SERP Simulator

Preview how your page title and meta description will look in Google search results, and see exactly when they'll get truncated.

How it works

  1. 1

    Pick a tool

    Choose the calculator that matches what you're trying to figure out.

  2. 2

    Enter your numbers

    Type in your prices, revenue, or order volume — whatever the tool asks for.

  3. 3

    Get an instant breakdown

    See the full fee breakdown and bottom-line result update as you type, with no page reloads.

Why these tools are free

Small business owners already juggle enough software costs. BizGrowth Tools is supported by ads rather than subscriptions, so every calculator stays free to use, with no account and no email required. Nothing you type into a calculator is sent to or stored on our servers — the math runs entirely in your browser.

Frequently asked questions

Are these calculators actually free to use?
Yes. Every tool on BizGrowth Tools is free, with no account, signup, or payment required. The site is supported by ads rather than subscriptions.
Do you store the numbers I enter?
No. Each calculator runs entirely in your browser — your prices, revenue, and order numbers are never sent to or stored on our servers.
How accurate are the fee estimates?
Each calculator is built from the platforms' published fee schedules (Etsy's Fee Basics, Shopify's pricing page, Amazon's FBA rate card). Rates can change or vary by seller country, so treat results as a close estimate for planning, and confirm exact figures with the platform before making a final pricing decision.
Will more tools be added?
Yes — BizGrowth Tools adds new free calculators for small businesses and online sellers on an ongoing basis, based on what sellers ask for most.