E-commerce ROI Calculator

Evaluate product and campaign returns: ROI, annualized CAGR, payback period and ROAS — with a full cost breakdown. All calculations run locally in your browser.

Total Revenue / Sales ($)

Total Investment / Cost ($)

Investment Period (Days)

Results

Net Profit ($)

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ROI (%)

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Annualized ROI / CAGR (%)

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Payback Period (Days)

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ROAS

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Revenue / Cost Ratio

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Cost breakdown will be listed here (COGS, first-mile, commission, ads, refund loss, fixed costs).

Revenue Breakdown

Chart will render here (IDE)

Scenario Simulation

See how price / cost changes affect ROI (logic to be implemented by IDE).

Revenue Change (%)

Cost Change (%)

Scenario results will be shown here.

What Is ROI for an E-commerce Product?

ROI measures how much profit you earn relative to what you invested: (Net Profit ÷ Investment) × 100. It tells you whether a product or campaign is worth the capital you put in.

ROI vs ROAS — Don't Confuse Them

ROI compares net profit to total investment. ROAS compares revenue to ad spend only. ROAS ignores other costs, so a high ROAS can still be unprofitable. ROI is the fuller picture; ROAS is a quick ad-health check.

Why Time Matters: ROI vs Annualized CAGR

The same 30% ROI means very different things if earned in 1 month vs 12 months. Annualized ROI (CAGR) normalizes for time so you can compare opportunities fairly.

Common Mistakes When Calculating E-commerce ROI

Using revenue instead of profit
Confusing ROI with ROAS
Ignoring refunds and chargebacks
Forgetting time period

Frequently Asked Questions

What is the difference between ROI and ROAS? ▾

ROI = net profit ÷ total investment. ROAS = revenue ÷ ad spend. ROAS only looks at ads; ROI includes all costs.

What is a good ROI for e-commerce? ▾

There is no universal number — it depends on your capital cycle and risk. Compare annualized ROI against your alternative uses of money.

Does this calculator store my data? ▾

No. Everything runs locally in your browser. Nothing is uploaded or stored.