The short answer
Most small and mid-sized businesses spend $1,500-$10,000 a month on Google Ads. You set the budget and pay per click. Published benchmarks put the average US search click at roughly $4-$6 across all industries, but that average hides a huge range: well under $1 for many ecommerce products, and over $100 for personal injury law. Management, if you use an agency, is on top of ad spend.
What you actually pay for
There are really three costs in Google Ads, and people usually only think about the first one.
- Ad spend. Paid to Google. You set a daily budget and pay when someone clicks your ad (or, for some campaign types, per impression or per view). There's no minimum spend.
- Management. Someone has to build and run the account: an agency, a freelancer, or time from someone on your team. See our PPC management cost guide for what each option costs.
- Everything around it. Landing pages, conversion tracking, call tracking software and creative. Often small, but skipping them is how budgets get wasted.
One detail that surprises people: Google can spend up to twice your average daily budget on busy days, but it won't charge you more than 30.4 times your daily budget over a month. So a $100 daily budget means roughly $3,040 a month, spread unevenly.
Average cost per click by industry
These are rough planning ranges for non-brand, high-intent search clicks in the US. Big cities, competitive seasons and very specific services can sit well outside them. Click an industry for a detailed breakdown.
| Industry | Typical CPC | What drives it |
|---|---|---|
| Lawyers (personal injury) | $50-$200+ | One signed case can be worth tens of thousands |
| Lawyers (family, criminal, employment) | $10-$50 | High fees, local competition |
| Insurance | $15-$60 | Lifetime value and lead-gen aggregators bidding |
| Roofers | $15-$50 | Big-ticket jobs, storm-season surges |
| HVAC | $10-$45 | Emergency repairs and replacement installs |
| Plumbers | $10-$45 | Urgent, local, high-intent searches |
| Solar installers | $10-$40 | Large contracts, heavy lead-gen competition |
| SaaS & B2B software | $5-$50 | Contract value and competitor bidding |
| Accountants | $4-$20 | Recurring clients, tax-season spikes |
| Dentists | $4-$15 | Implants and Invisalign cost far more than check-ups |
| Med spas & aesthetics | $3-$15 | Treatment value, local competition |
| Real estate | $1.50-$10 | Seller leads cost much more than buyer searches |
| Ecommerce | $0.40-$3 | Product price and margin |
Want numbers for your exact market? Google Keyword Planner shows top-of-page bid ranges by keyword and location, or ask us for a free estimate.
Why some clicks cost $1 and others cost $150
Google Ads is an auction. Every time someone searches, Google runs an auction between the advertisers bidding on that search. The price you pay depends mostly on how much the advertisers below you are willing to pay, and they bid based on what a customer is worth to them.
That's why legal and insurance clicks are so expensive. If one personal injury case is worth $30,000 in fees, a law firm can rationally pay $150 for a click and still do well. An online shop selling $25 phone cases can't.
The other half of the price is Quality Score. Google rewards ads that are relevant to the search and send people to a useful landing page. A well-built account with a strong Quality Score can pay noticeably less per click than a competitor with a poor one for the same position. More on that in our Quality Score guide.
Worked example: what $5,000 a month buys
Here's how the numbers flow for a local service business paying about $8 a click, with a decent landing page and a sales team that closes a quarter of its leads.
| Step | Example |
|---|---|
| Monthly ad spend | $5,000 |
| Average cost per click | $8.00 |
| Clicks | 625 |
| Conversion rate to leads | 7.0% |
| Leads | 44 |
| Cost per lead | $114 |
| Close rate to customers | 25% |
| Customers | 10.9 |
| Cost per customer | $457 |
| Average customer value | $2,500 |
| Revenue | $27,344 |
| Return on ad spend | 5.5x |
At $114 per lead and $457 per customer, this business gets back about 5.5x its ad spend in revenue. Nudge the conversion rate from 7% to 9% with a better landing page and every one of those numbers improves without spending a cent more.
How much businesses typically spend per month
There's no minimum, but there is a practical floor: you need enough clicks each month to generate conversions and learn from them. Here are common ranges by type of business.
| Type of business | Typical monthly ad spend | Notes |
|---|---|---|
| Local service business (one location) | $1,500-$5,000 | Enough for a focused search campaign in one area |
| Multi-location or regional service business | $5,000-$25,000 | Budget split by location and service |
| Professional services (legal, finance) | $5,000-$50,000+ | High CPCs push budgets up quickly |
| Ecommerce store | $3,000-$50,000+ | Scales with product range and margin |
| B2B / SaaS | $5,000-$30,000 | Often paired with LinkedIn Ads |
If your budget is below about $1,500 a month, keep the account very narrow: a handful of high-intent keywords, one location, one strong landing page.
How to work out your own Google Ads budget
The most reliable way to set a budget is to work backwards from the number of leads or sales you want. The calculator above does this for you, but here's the logic.
- 1
Decide what a customer is worth
Average sale value, or first-year value for repeat business. Then work out how much of that you're willing to spend to win one customer.
- 2
Estimate your cost per click
Use Keyword Planner's top-of-page bid ranges for your main keywords and location, or your own account history if you have it.
- 3
Estimate your conversion rate
Most service businesses see 3-10% of paid clicks turn into an enquiry. Use 5% if you've no data, and be honest if your landing page is weak.
- 4
Do the maths
Budget = leads wanted ÷ conversion rate × cost per click. 30 leads at a 5% conversion rate and $6 CPC needs 600 clicks, or about $3,600 a month.
- 5
Sanity-check against customer value
Divide the budget by the customers you'd expect to close. If that's more than a customer is worth to you, fix conversion rate or targeting before spending more.
What makes Google Ads more expensive than it needs to be
Broad match with no negatives
Broad match plus a thin negative keyword list pays for searches that were never going to buy. It's the single biggest source of waste we find in audits.
Wrong location settings
Google's default targets people "in or interested in" your area. For local businesses, switching to people actually in your area often cuts waste immediately.
Counting the wrong conversions
If page views or button clicks count as conversions, smart bidding chases those instead of real leads and your cost per real lead climbs.
Sending clicks to the homepage
A generic homepage converts far worse than a page built for the search. Lower conversion rate means a higher cost for every lead.
What Google Ads management costs
If you hire help, expect one of four pricing models: a percentage of ad spend (commonly 10-20%), a flat monthly fee, a hybrid of the two, or a performance-based fee. Freelancers often charge $500-$2,000 a month for smaller accounts; agencies typically start somewhere around $1,000-$2,500 a month.
Our packages start at $1,199 a month and step up in fixed brackets as spend grows, rather than taking a percentage. There's a full breakdown on our PPC pricing page, and a comparison of every model in our PPC management cost guide.
Google Ads cost guides by industry
Every industry has its own CPCs, conversion rates and traps. These guides go into the detail, each with a budget calculator preset for that market.