What's the difference between ROAS and ROI here?

ROAS is revenue divided by ad spend, shown as a multiplier (e.g. 3.5x). ROI is the percentage profit relative to spend after subtracting the spend itself — a 3.5x ROAS is a 250% ROI, since you netted 2.5x your spend as profit.

Are these blocks connected, or just calculated separately?

Every block reads from the same set of inputs and recalculates instantly as you change any one of them — CPM, CPC, CPA, revenue, ROAS, and ROI all update together in real time.

Does this account for ad platform fees or agency markups?

No — enter your true, all-in ad spend if you want the ROAS and ROI figures to reflect your actual cost of acquisition, including any platform or management fees.

What's a good CPA or ROAS to aim for?

That depends entirely on your margins — pair this with the E-Commerce Break-Even & Profit Margin Matrix tool to see the max CPA and required ROAS your specific product can actually support.

Ad Campaign CPM & ROI Engine

Marketing

Turn budget, impressions, and conversion rate into a full ROI breakdown.

Campaign inputs

Every result below updates instantly as you type.

Ad spend

Impressions

CTR (%)

Conversion rate (%)

Avg. order value

Reach & cost

Ad spend$1,000.00

Impressions250,000

CPM$4.00

Engagement

CTR1.2%

Clicks3,000

CPC$0.33

Conversion & return

Conversions75.0

CPA$13.33

Revenue$4,875.00

ROAS4.88x

ROI387.5%

About this tool

Enter your ad spend, impressions, click-through rate, conversion rate, and average order value, and instantly see connected calculation blocks for CPM, CPC, CPA, revenue, ROAS, and ROI — all updating live as you adjust any number.

How to use Ad Campaign CPM & ROI Engine

1
Enter your total ad spend and total impressions to see your CPM.
2
Enter your click-through rate to see estimated clicks and cost-per-click.
3
Enter your conversion rate and average order value to see conversions, CPA, and revenue.
4
Read ROAS and ROI in the third block, and copy the full breakdown for reporting.

Frequently asked questions

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