Free tool
Google Ads Cost Estimator
Google Ads is not sold at a price, it is bought at auction. The question that matters is what your budget buys. Three numbers are enough to answer it.
Google Ads runs on auctions and has no list price and no subscription. You set a daily budget and pay per click, at a cost driven by competition on your keywords. So the number that matters is not the budget but the cost per conversion it produces.
Your budget, step by step
How the calculation works
Clicks = Budget ÷ CPC Conversions = Clicks × Conversion rate Cost per conversion = Budget ÷ Conversions
The question "how much does Google Ads cost" has no answer in euros, because there is no subscription: you buy clicks at auction. The question that does have an answer is this one: for the budget I put in, how many customers do I buy, and at what price?
The whole calculation is three numbers. 1,500 € a month, an average CPC of 1.80 € and a 3 % conversion rate give 833 clicks, 25 conversions and a cost per conversion of 60 €. If 60 € per customer sits above what you can pay, the budget is not the first thing to change.
The two levers live in different places. CPC is settled inside the account: keywords, targeting, Quality Score, bidding strategy. Conversion rate is settled on the landing page. A budget that grows while neither moves simply buys more of the same thing, at the same unit price.
Three things to know before setting a budget
- The daily budget is not a daily cap. Google can spend up to twice your daily budget on a high-traffic day and makes up for it on quieter ones. What is guaranteed is the monthly ceiling: daily budget × 30.4.
- An unknown conversion rate gets replaced by a conservative assumption, never a flattering one. That number decides whether the budget holds, and getting it wrong only shows up a month later.
- The entry threshold is not an amount, it is a volume. Google sets no minimum, but a campaign producing too few conversions gives automated bidding nothing to learn from, and gives you nothing but noise to decide on.
Frequently asked questions
How much does Google Ads cost per month?
There is no fixed amount: you choose your budget and pay per click. The deciding number is not the budget but the cost per conversion it produces, and it comes from three values: budget, average CPC and conversion rate.
Is there a minimum budget on Google Ads?
Google sets no minimum. The real threshold is statistical: below a certain conversion volume, automated bidding strategies have too little data to learn from, and week-to-week swings are mostly chance.
Why is my CPC higher than published averages?
Those averages pool countries, industries and campaign types that have nothing in common. Your CPC depends on competition for your exact keywords, your Quality Score and your geography. The only useful reference is your own account history.
Is cost per conversion the same as CPA?
Yes, two names for the same thing. The open question is how much you can afford to pay, and that is what the ideal CPA calculator answers, starting from your margin instead of your budget.
Is that budget the right one for your market?
The calculation above assumes a CPC and a conversion rate. Both get verified on your account and on your page, and that is where an estimate turns into a plan.
Invest The Right Budget
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Théo MaupiléFreelance Paid Media
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