How much does a Google Ads campaign cost? The short answer
I’ve been managing Google Ads campaigns for 20 years now, and one question always comes up in meetings: “How much should I invest in my Google Ads campaigns?” The honest answer almost always starts with “it depends,” which doesn’t help anyone.
The cost of a click is only part of the equation: what really matters is how much you’re willing to pay to get a customer. That’s what I’ll put numbers on here, using the most recent market data.
In this guide, you’ll find:
- how Google actually bills your ads
- average costs by industry, and how to interpret them
- a simple method to calculate your budget based on the number of customers you’re aiming for
- the mistakes that burn through a budget without bringing anything back.
How Google bills you
On the Search Network, you only pay when someone clicks your ad. Showing the ad costs nothing.
The price of a click, however, isn’t fixed. Every time someone searches, Google runs an auction between the advertisers targeting that keyword. The winner isn’t necessarily the highest bidder: Google also considers how relevant the ad is and the page it leads to. A well-built ad can therefore outrank a competitor who bids more, and pay less.
For your budget, you set a daily limit you’re willing to spend, for each campaign. Two rules are important to know, taken from Google’s documentation:
- On any given day, Google can spend up to twice your daily budget, to take advantage of busier days.
- Over a month, you’ll never pay more than 30.4 times your daily budget (the average number of days in a month).
In practice: a budget of $50 a day gives a maximum bill of $1,520 a month. If you think in monthly terms, simply divide the total by 30.4 to find the daily budget to enter.
Average costs by industry in 2026
One of the most widely used benchmarks in the industry is WordStream’s annual data. It focuses on the U.S. market, while broad studies and data for Quebec (or even Canada) are very rare.
The 2026 edition covers 13,474 U.S. campaigns, from April 2025 to March 2026. On average, across all industries: $5.42 USD per click, an 8.18% conversion rate and an acquisition cost of $66.69 USD per conversion.
| Industry | Cost per click | Conversion rate | Cost per lead |
|---|---|---|---|
| Attorneys & legal services | $9.87 | 5.55% | $131.63 |
| Home & home improvement | $8.33 | 8.05% | $90.92 |
| Dentists | $8.00 | 10.67% | $72.97 |
| Health & fitness | $6.17 | 6.94% | $67.36 |
| Business services | $5.87 | 4.85% | $93.69 |
| Industrial & commercial | $5.87 | 8.20% | $75.19 |
| Finance & insurance | $3.39 | 2.64% | $74.44 |
| Real estate | $3.22 | 3.70% | $102.51 |
| Restaurants | $2.05 | 8.05% | $30.57 |
Real estate is a particularly interesting industry to look at. It has one of the cheapest clicks in the table, but also one of the most expensive leads, because its conversion rate is lower than other industries. That’s exactly why cost per click on its own doesn’t mean much. A $3 click that rarely converts can end up costing you more than an $8 click that brings in a real customer.
Good news, though: for the first time in five years, the average cost per lead went down. On the other hand, a click now costs more than twice what it did in 2016 ($2.32 USD back then).
What drives your bill up (or down)
Two businesses in the same industry can pay very different prices for the same keyword. Here are the five factors that weigh the most.
1. The value of a customer in your industry. A family lawyer can afford to pay a lot for a click, because a single case brings in thousands of dollars. The more a customer is worth, the more advertisers bid, and the higher the cost per click.
2. The number of competitors on your keywords. In Montreal, in residential services, you’re rarely alone. In a smaller city or a B2B niche, the auction can be much calmer because there’s less competition, although uncompetitive markets are increasingly rare in 2026.
3. The quality of your ads. Google gives each keyword a Quality Score from 1 to 10. It reflects ad relevance, expected click-through rate and landing page experience. The higher it is, the less you pay for the same position. Yet in a WordStream study of 15,666 accounts, the average score hovered between 5 and 6, only 22% of accounts reached 7 or more, and 36% were below 4. So most advertisers have room to improve.
4. Seasonality. A roofer doesn’t pay the same price for a click in April as in December. Same for air conditioning in July, financial services in March or beauty products in the run-up to the holidays. Plan your budget around your peak months, not an annual average.
5. The language of your campaigns. This factor is often overlooked. In my practice, French-language searches often face fewer advertisers than their English equivalents, which can mean cheaper clicks. It’s not a rule: in some industries, competition is just as fierce in both languages. If your customers are bilingual, split your campaigns by language to compare costs and allocate your budget accordingly.
Work out your budget backwards
Most small businesses pick a rough budget to start with: $1,000, $2,500, or whatever seems reasonable. It’s usually easier to do the opposite. Start from the number of inquiries you want to receive, and work back to the budget.
You need three numbers: the number of leads you’re aiming for each month, your conversion rate (the share of visitors who contact you) and your estimated cost per click.
A concrete example. Let’s take a software development company in Montreal that wants 20 demo requests a month. We’ll assume a $6 click and a 5% conversion rate, close to the business services averages ($5.87 and 4.85%).
| Step | Calculation | Result |
|---|---|---|
| Clicks needed | 20 leads ÷ 5% | 400 clicks |
| Monthly budget | 400 clicks × $6 | $2,400 |
| Daily budget | $2,400 ÷ 30.4 | ≈ $79 |
| Cost per lead | $2,400 ÷ 20 | $120 |
Now look at what happens when only the conversion rate changes:
| Conversion rate | Clicks needed | Monthly budget | Cost per lead |
|---|---|---|---|
| 2.5% | 800 | $4,800 | $240 |
| 5% | 400 | $2,400 | $120 |
| 7.5% | 267 | $1,600 | $80 |
Same keywords, same cost per click, and the bill varies threefold. Your landing page and how you follow up on demo requests matter as much as your ads.
The last step, often forgotten: going from lead to customer. If one demo in four turns into a contract, your 20 leads give you 5 customers, or $480 to acquire each one.
Now compare that number to the value of a contract, or of a subscription over its full lifetime.
That’s how you’ll know whether Google Ads is profitable for you, beyond just looking at the cost per click of your keywords.
The mistakes that burn through a budget
The average Google Ads account spends about $3,127 USD a month and wastes $1,128 USD of it. That’s more than a third of the budget going to clicks that bring nothing back, according to WordStream’s analysis of 15,666 accounts.
Here are the causes I see most often.
Not measuring conversions. 29% of the accounts analyzed hadn’t recorded a single conversion in 90 days. In many cases, it’s not that the campaign doesn’t work, it’s that nobody is measuring it. Without tracking forms and calls, you’re flying blind, and so are Google’s automated bidding strategies.
Forgetting negative keywords. One account in four has none. Yet accounts with at least one convert at 13%, compared with 4.6% for the others. A plumber who doesn’t block “jobs,” “salary” or “training” is paying for people looking for work, not for a plumber.
Putting everything in one campaign. The best-performing accounts in the study had two to three times more ad groups than the weakest ones. One ad group per service, with its own ads and its own page, means more relevant ads and cheaper clicks.
Sending everyone to the home page. Someone searching for “drain unclogging” wants to see a page about drain unclogging, with a clearly visible phone number. Not your company history.
Believing a big budget fixes everything. Advertisers spending less than $1,000 USD a month convert better (18.8%) than those spending more than $10,000 (14.2%). A small, well-targeted budget often beats a large, scattered one.
Frequently asked questions
What’s the minimum budget to get started with Google Ads? Google doesn’t impose a minimum. The real minimum is having enough clicks to learn something. With a $6 click, a $1,000 monthly budget gets you about 170 clicks. At a 5% conversion rate, that’s about 8 inquiries: enough to start judging whether the campaign works.
Is Google Ads cheaper in French? Often, yes. French-language searches generally face fewer advertisers than English ones, which can lower the cost per click. It’s not a rule: some industries, like insurance or software, stay very expensive in both languages.
How long before I see results? The first clicks come in as soon as you launch. However, most adjustments take about 30 days to show their effect. I recommend judging a campaign after two or three months, not after two weeks.
Am I locked into a contract with Google? No. You can pause your campaigns or change your budget at any time. The only commitments are the ones you sign with an agency or a consultant.
Is it better to aim for a low cost per click? Not necessarily. What matters is the cost of getting a customer. An expensive click that converts well is often more profitable than a cheap click that brings nothing.
The bottom line
A Google Ads campaign for a small business can work with a few hundred dollars a month, or it can call for several thousand. The right number depends on your industry, your competitors and, above all, what a customer is worth to you.
Remember three things. Calculate your budget from the number of customers you’re aiming for, not the other way around. Watch your cost per customer rather than your cost per click. And take care of your landing page and conversion tracking: that’s often where the biggest savings are hiding.
Wondering what these numbers look like in your industry? I’m always happy to talk about it. Get in touch and we’ll look at your situation together.
Sources
- WordStream, Google Ads Benchmarks 2026 (13,474 U.S. campaigns, April 2025 to March 2026)
- WordStream, study of 15,666 Google Ads accounts (January to November 2025)
- Google Ads, About spending limits
- OuterBox, PPC Management Pricing 2026
- ClicksGeek, Google Ads Management Pricing 2026