How to use the calculator
The calculator works with three numbers: what a click costs, how many visitors enquire, and how many enquiries turn into business. The rest is arithmetic. Monthly budget ÷ cost per click = clicks. Clicks × conversion rate = leads. Leads × close rate = new customers.
Example: with a budget of 600, a click at 1.20 and a 5 % conversion rate you get 500 clicks and 25 leads a month, or 24 per lead. If a quarter of the leads become customers worth 500 each, that is about 6 new customers and around 3,100 in revenue.
Where to find real click prices
Cost per click depends on industry, location and competition. The best source is Google’s Keyword Planner inside a Google Ads account: enter your services and area to see the top-of-page bid range. Clicks can cost anywhere from a few tens of cents to several euros or pounds, and are most expensive where a single customer is worth a lot, such as dentistry, legal services or real estate. Take the middle of the range and keep a margin.
What changes the result most
- Landing page. The same campaign can bring twice as many leads on a page with a clear offer, price and call button as on a generic home page. Check your page with our website checker before launch.
- Conversion tracking. Without tracking calls, forms and WhatsApp messages, Google does not know what success looks like and cannot optimise.
- Keywords. Searches with intent (“emergency plumber Bristol”) cost more per click but bring enquiries. Generic searches are cheap and rarely end in a call.
- Schedule and area. Showing ads only during opening hours and only where you work saves budget for clicks you can turn into business.
Is there a minimum Google Ads budget?
Google has no minimum, but a very small budget does not produce enough data. For a local service in one city, a realistic start is usually 10 to 20 a day. National campaigns and competitive industries need more. On a single day Google can spend up to twice your daily budget, but over a month it will not charge more than 30.4 times the daily budget.
Frequently asked questions
How much does Google Ads cost per month?
Are the results guaranteed?
What is a good cost per lead?
Why does Google spend more than my daily budget?
Updated: November 2026 · Supremio Digital, Zagreb
