Target CPA & ROAS Calculator

Know exactly how far you are from your goal

Enter current campaign performance and your target, and see the gap, the Smart Bidding values to set in Google Ads, and the budget and volume implications.

Campaign data
Currency
$
Total spend in the reporting window
Number of conversions tracked in the same period
$
Optional in CPA mode. Total attributed revenue or conversion value from the campaign.

Your CPA goal
$
The tCPA you want to reach or are evaluating
Results

Enter your campaign data and target to see the gap.

Results will appear here as you type.

Three things this calculator tells you

01
How the gap is calculated

The gap is the difference between your current performance and your target, expressed as a currency or multiple and as a percentage of your current number. It shows how far the account needs to move, not how to get there.

02
Why budget and volume move together

If your CPA falls, either your spend drops or your conversions rise, or both. The projected numbers show each scenario at its extreme. Real outcomes sit somewhere in between depending on auction depth and conversion rate.

03
Why bid changes are directional, not exact

The bid-to-CPA relationship is non-linear. Smart Bidding responds to auction signals the tool cannot see. The direction is reliable. The magnitude is not. Set the target, allow time past the learning phase, then evaluate.

Know the gap. Need a plan to close it?

Seeing the gap is step one. Building campaigns that close it without breaking volume or margin is the actual work. If your CPA or ROAS is stuck, let's look at what is driving it.

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