Google Ads Costs: What Online Shops Should Realistically Budget in 2026

What Google Ads costs is the first question every shop owner asks and the one answered worst. Agencies like to quote high, forums tell horror stories about burned budgets, and Google essentially says “it depends”. Fair enough, but that helps nobody who has to plan an advertising budget right now. So here are the numbers you can actually work with, including click prices from real client accounts, a budget you can derive instead of guess, and the maths on when the whole thing pays off.

One thing to get straight first: Google charges nothing for running your ads. No setup fee, no minimum budget, no contract term. You only pay when someone clicks. The real cost question is therefore less “what does Google Ads cost” and more “what does an order cost me, and what is left afterwards”. This article works through both.

How Google Ads is billed: CPC, PPC and daily budget explained

Google Ads runs on the PPC principle, pay per click. The price per click (CPC) is not set by Google, it comes out of an auction: for every search query all matching ads compete, and placement is bid times quality. A relevant ad with a matching landing page pays less for the same position than a weak one. Your costs are therefore not a fixed market price, you can actively push them down through relevance and account structure.

All of it is steered by the daily budget per campaign. Google may spend up to twice that on strong days, but it balances out over the month: you are never charged more than your daily budget times 30.4. So if the account says €50 per day, you top out at roughly €1,520 a month, no matter how wild individual days look.

Then there is the bidding strategy. In e-commerce, bidding is almost always handed to Google’s Smart Bidding with a ROAS target these days, and that leads straight to the single biggest cost factor: the algorithm needs conversion data. Too little budget means too little data, and too little data means volatile, often poor results. Which brings us to the budget question.

Realistic click prices (CPC) in e-commerce by category

Let us start with real numbers. These are the click prices from our client accounts:

Data base: several dozen e-commerce client accounts in the DACH region, Standard Shopping and Performance Max campaigns, 08/2025 to 07/2026, 1.8 million clicks in total.

For context, here are typical ranges by category as we see them in the market. Unlike the table above, these are experience values rather than measurements:

Two patterns run through all of it: Shopping clicks are almost always cheaper than search clicks, because the user has already seen the image and the price before clicking. And the narrower the niche and the higher the basket, the more expensive the click, because expensive clicks still pay off there. For online shops, Shopping is therefore usually the dominating cost block, and how the format works in detail is covered in our Google Shopping guide.

What monthly budget should an online shop plan for?

The rule of thumb of €500 to €1,500 to start is not a number pulled out of thin air, it can be derived. Smart Bidding runs stably from around 30 to 50 conversions per month. At a conversion rate of 1.9% (the median across our client accounts) that takes 1,600 to 2,600 clicks, and at €0.42 per click you end up at €670 to €1,100 a month. Starting well below that can still generate revenue, but you have to live with a long learning phase and volatile results.

What that budget delivers at average values is shown across three tiers:

Calculated with the medians from our client accounts: €0.42 CPC, 1.9% conversion rate, €66 basket. The table is linear, in reality the curve flattens towards the top because additional budget eventually buys more expensive and weaker clicks.

For a sense of what shops actually spend: half of our client accounts invest between roughly €260 and €1,800 per month, with a median of a good €700. So it also works a size smaller than agency guides like to claim.

From budget to profit: break-even, ROAS and margin instead of raw click costs

The click price alone says nothing about whether Google Ads works out for you. The metric for that is ROAS, revenue divided by ad spend. A ROAS of 3 means every euro of ad spend brings in €3 of revenue. Whether that is good is decided by your gross margin, because the goods still have to be paid for out of that revenue. Break-even ROAS is 1 divided by your margin:

Anything above your break-even is profit from the channel, anything below it is paid growth without a return. The calculation gets sharper when you use contribution margin after shipping and payment costs instead of gross margin, which puts the threshold a little higher.

For context: the median ROAS across our client accounts is 3.8, with the middle half between 1.7 and 7.8. Depending on margin, the weakest accounts are advertising below break-even, and that is almost always where the biggest optimisation potential sits.