How to use the calculator
- Enter what you plan to spend in a month.
- Choose how you pay: per click (search and most social ads) or per lead (lead services and some directories).
- Add your rates from past results: how many visitors become leads, and how many leads buy.
- Add your average sale and, if you know it, your profit margin to see profit and ROI.
How the numbers are worked out
- Clicks = budget ÷ cost per click.
- Leads = clicks × visitors who become leads, or budget ÷ cost per lead.
- Customers = leads × leads who buy.
- Revenue = customers × average sale.
- Return on ad spend = revenue ÷ budget.
- Profit after ad cost = revenue × profit margin − budget. ROI = that profit ÷ budget.
- Break-even = budget ÷ (average sale × profit margin), rounded up to whole customers.
Before you spend on ads
Ads multiply what your site already does. If visitors aren't turning into leads now, more visitors won't fix that. Our 90-day marketing plan for small businesses starts with the free basics first, and the UTM link builder helps you measure what each channel really brings.
Questions
Are these real results?
No. They're estimates worked out from the numbers you type in. Use them to compare options and set expectations, then check them against your real results after a month.
What if I don't know my conversion rates?
Start with your last month of results: leads divided by visits, and customers divided by leads. If you have no history yet, run a small test first and come back with real numbers.
What's the difference between ROAS and ROI?
Return on ad spend compares sales to ad cost. ROI also takes out your other costs using your profit margin, so it shows what you actually keep.
Should a customer's value include repeat visits?
If customers come back, like for grooming every six weeks or a monthly subscription, you can enter what a customer is worth over a year instead of one sale. Just be consistent when you compare.
More free tools
- UTM link builder: Tag any link with source, medium and campaign so your analytics show which posts, emails and listings bring visits.
- Title and meta description preview: See how a page could look in Google results on desktop and phones, with length checks for titles and descriptions.
- See all free tools