Advertising ROI Calculator for Ecommerce

Free advertising ROI calculator 📈 Find out if your ad campaign made real profit 💰 Free advertising ROI calculator 📈 Find out if your ad campaign made real profit 💰 Free advertising ROI calculator 📈 Find out if your ad campaign made real profit 💰 Free advertising ROI calculator 📈 Find out if your ad campaign made real profit 💰

📈 Free calculator Advertising ROI Calculator for Ecommerce Calculate the return on investment of your ad campaign: ROAS, maximum profitable CPA and how much you really made (or lost). ✓ 100% free · ✓ Instant results · ✓ We don't store your data

Simulator

Sale price

What you charge your customer per unit.

Product cost

Shipping per order

Advertising investment

What you spent on the campaign.

Sales achieved

orders

Note: ROAS only compares revenue against ad spend — it doesn't subtract the product cost or shipping. ROI and net profit do, which is why they're the numbers that really matter.

Result

⚠ {{ roiError }}

Net profit {{ gananciaNetaFmt }} {{ gananciaNetaNote }}

Maximum profitable CPA {{ cpaMaximoFmt }} Above this, you lose money

ROAS {{ roasFmt }} Revenue for every dollar invested

Real CPA {{ cpaRealFmt }} {{ cpaRealNote }}

ROI {{ roiFmt }} Return on what you invested

Margin per unit {{ margenUnitarioFmt }} {{ margenPctLabel }} of the price

With these numbers you bill {{ facturacionFmt }} and pay {{ costoTotalFmt }} in product and shipping. The number that rules is the maximum CPA: it's the most you can pay for a sale before you start losing.

What does each number mean? So you know whether your last campaign really made you money, or just generated sales that didn't cover the total cost.

ROAS vs. ROI ROAS compares revenue against ad spend, without subtracting costs. ROI subtracts the product cost and shipping — it's the number that tells you if you actually made money.

Maximum CPA vs. real CPA The maximum CPA is your margin per unit: the ceiling before you lose. The real CPA is what you actually paid per sale (investment ÷ sales). If the real one exceeds the maximum, you lost money.

Net profit What's left after subtracting the product cost, shipping and ad investment from what you billed. It's the campaign's final result, in money.

Sales yes, profit no

It's the most common mistake when looking only at ROAS: a campaign can generate many sales and a "good" ROAS (2x, 3x) and still leave losses, if the product cost and shipping eat up the margin.

That's why this calculator separates ROAS (ads only) from ROI and net profit (all costs). If the ROI is negative, the campaign lost money even though it sold — you need to lower the real CPA, raise the price, or negotiate a better product cost.

Frequently asked questions

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