E-Commerce ROI Calculator
Calculate ROI, ROAS, ACoS, net margin and break-even for your online store, including product cost, fees, shipping and ad spend. Download the result as a PDF.
✓ Professional standard Based on the published fee structures of Shopify, Amazon, Etsy and eBay for realistic seller estimates.
E-Commerce ROI Calculator is a free online e-commerce tool from Toolinza. Calculate ROI, ROAS, ACoS, net margin and break-even for your online store, including product cost, fees, shipping and ad spend. Download the result as a PDF. It runs entirely in your browser — your data is never uploaded — needs no signup, and works on any device. Toolinza offers 274+ free tools used by people across the UK, USA, Canada, Australia, the EU, India, Pakistan, the Middle East and worldwide.
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About the E-Commerce ROI Calculator
Running an online store means juggling product cost, fees, shipping and ad spend — and it is easy to be busy without being profitable. The metrics that reveal the truth are ROI, ROAS, ACoS, net margin and break-even, and calculating them by hand is fiddly.
This E-Commerce ROI Calculator works out all of them for your store, including product cost, fees, shipping and ad spend, with a PDF export so you can track and share the numbers.
How to use the E-Commerce ROI Calculator
- Enter your product cost, fees and shipping.
- Add your selling price and ad spend.
- The tool calculates ROI, ROAS, ACoS, margin and break-even.
- Review the metrics and download a PDF.
Key features of the E-Commerce ROI Calculator
- Calculates ROI, ROAS, ACoS, net margin and break-even
- Includes product cost, fees, shipping and ads
- Reveals whether campaigns are truly profitable
- PDF export
- Private — runs in your browser
How the E-Commerce ROI Calculator works
These calculators use the standard, published fee structures of the major marketplaces and platforms — Shopify, Amazon FBA, Etsy and eBay — including referral, transaction, payment-processing and fulfilment fees. By combining those with your product cost and price, they show your real profit and margin per sale rather than just revenue.
All calculations run privately in your browser.
Tips & best practices
- Know your break-even ACoS — the ad cost of sale at which you make no profit — so you can bid without losing money.
- ROAS ignores product costs, while ROI accounts for them, so use ROI to judge true profitability.
- Include every cost — fees, shipping, returns — or your margin will look better than it really is.
Standards & accuracy
Based on the published fee structures of Shopify, Amazon, Etsy and eBay for realistic seller estimates.
Marketplace fees vary by plan, category and country and change over time, so treat results as close estimates. Confirm the exact figures against your own seller account before making decisions.
Who uses the E-Commerce ROI Calculator?
- Judging whether ad spend is profitable
- Finding your break-even ACoS
- Comparing product or campaign returns
- Reporting store performance
Privacy & security
The E-Commerce ROI Calculator runs entirely inside your web browser. Your data — whether that is a file, figures or text — is processed on your own device and is never uploaded to a server, stored or shared. There is no signup and no account, so you can use it as often as you like while keeping full control of your information. This makes it a safe choice even for confidential and sensitive work.
Why choose Toolinza?
- 100% free — no hidden charges, watermarks or usage caps.
- Private & secure — your data stays on your device.
- Standards-compliant — accurate results suitable for the UK, USA, Canada, Australia, EU, India, Pakistan, the Middle East and worldwide.
- Works everywhere — desktop, tablet and mobile.
Frequently asked questions
ROAS is revenue divided by ad spend and ignores product costs, while ROI accounts for all costs to show true profitability. Use ROI to judge whether you are actually making money.
It is the advertising cost of sale at which your profit is zero. Staying below it means your ads are profitable; above it, they lose money.
Yes. You can download the calculated metrics as a PDF for tracking and sharing.
Yes. The E-Commerce ROI Calculator is completely free with no signup, no watermarks and no usage limits. Toolinza is supported by unobtrusive advertising so every tool stays free.
Absolutely. This tool runs entirely in your browser — your data and files are never uploaded to any server, so everything stays private on your own device.
No. The E-Commerce ROI Calculator works instantly in any modern web browser on desktop, tablet and mobile — Windows, macOS, Linux, Android and iOS.