Ad ROI
calculator
This ad ROI calculator estimates how many customers Google or Facebook ads could bring you and whether they'd pay for themselves once every cost is counted. Your numbers, an instant answer, no email.
Will the ads
pay for themselves?
The starting values are placeholders, not benchmarks. Swap in your own and the result updates instantly.
- Revenue from ads
- 0
- Your margin from that
- 0
- Cost of ads and management
- 0
- Cost per customer acquired
- 0
- ROAS (revenue / budget)
- 0
How the ad ROI calculation works
The calculator follows the money step by step. Your monthly budget divided by cost per click gives visits. Visits times the conversion rate give inquiries. Inquiries times your close rate give customers. Customers times profit per sale (average sale times margin) give what the ads earned, and subtracting ad spend plus the management fee gives your return.
A worked example
Say you spend $1,500 a month at $6 a click. That buys 250 visits. If 6% call or send a form, that's 15 inquiries. Close a third and you have 5 new customers. If each one leaves you $600 in profit, the ads earned $3,000 against $2,500 in total cost ($1,500 budget plus $1,000 management): a modest gain. These figures only illustrate the math; your own will differ, which is the whole point of the tool.
Three inputs owners usually get wrong
- Revenue instead of profit. A $2,000 job with a $300 margin can't carry a $500 cost per customer.
- Forgetting repeat business. If customers come back, use customer lifetime value rather than one invoice.
- Wishful close rates. Count how many inquiries really turned into paid work last quarter, not how many felt promising.
Want to go deeper? Read marketing ROI for non-data people or ROAS vs ROI. If you'd like someone to run the campaign for you, see Google Ads management.
Questions about
the numbers
Where do I find my cost per click?
If you've advertised before, it's in your Google Ads or Meta account. If not, Google's Keyword Planner gives a rough bid range for your keywords and metro. Treat it as a first guess: real prices depend on competition, ad quality and your landing page, and in legal, home services and healthcare they often run high.
What conversion rate should I enter?
Your own, if you have it: inquiries divided by ad visits. Without data, run the calculator twice, once cautious and once best-case. If even the cautious case pays off, the ads deserve a test. If only the best-case one works, fix the website before buying traffic.
Is your fee included in the result?
Only if you enter it. For an honest picture, include it: Google Ads management with me starts at $1,000 a month and Meta ads at $600. The ad budget itself goes straight to Google or Meta and appears on your own card statement.
The calculator says ads won't pay. What now?
Find the number that breaks the math. A weak close rate points at follow-up and CRM. A weak conversion rate points at the website. A thin margin may mean only your higher-ticket services should be advertised. Bring the numbers to a free call and we'll find the weak link.
Check the math
with me
30 minutes, free. Bring your calculator result and I'll tell you which number I'd work on first.