How much does Google Ads cost?
Google Ads has no fixed price: no subscription and no minimum spend. You set a budget and, on Search and Shopping campaigns, you pay each time someone clicks one of your ads. That is the cost per click (CPC). A campaign's cost is therefore the number of clicks it gets multiplied by the average price of a click.
What you spend says nothing about what you earn. Two questions decide the outcome: what does a click cost, and what share of clicks ends in a sale? This calculator starts from your budget and answers: how many clicks, how many sales, what cost per sale, what ROAS and, above all, whether the operation makes money.
To work the other way, from a sales goal to the budget you need, use the ad budget planner.
What you spend is not what it costs. A campaign that spends a lot but earns more margin than it costs is not expensive; a small campaign that loses money always is.
How does Google Ads charge for clicks?
Every eligible search triggers an auction. Your ad's rank depends on your bid, but also on ad quality: relevance, expected click-through rate and landing page experience. You do not necessarily pay your maximum bid: the actual CPC is the amount really charged for a click, at most equal to your bid.
With automated bid strategies such as target ROAS or target CPA, Google sets the bid on each query. Average CPC then becomes a result to observe, not a setting. You can read it in the Avg. CPC column of your Google Ads reports.
Not every format is billed per click: some, like video or display, are paid per view or per thousand impressions. This calculator only covers pay-per-click, which is how Search, Shopping and most Performance Max results are billed.
Why does CPC vary?
- Competition — The more advertisers bid on the same query, the higher the price of a click.
- Quality Score — A high expected click-through rate, a relevant ad and a well-built landing page let you hold the same position for less.
- Seasonality — Sales, holidays and peak periods push demand and bids up. January's CPC is not November's.
- Targeting — Location, device, schedule and audiences do not share the same CPC or the same conversion rate.
- Bid strategy — A high target ROAS restrains bids: CPC drops, but so does click volume.
In practice: do not freeze a CPC for the whole year. Enter the one for the period you are simulating and re-read it before each peak.
Formula: from budget to sales and profit
Budget ÷ Average CPC
Clicks × Conversion rate
Budget ÷ Conversions = CPC ÷ Conversion rate
Compare it with the maximum CPA your margin allows using the CPA calculator.
Conversions × Average order value, then Revenue ÷ Budget
Revenue × Margin − Budget
Margin is the share of the order left before advertising, after product, shipping, payment fees and tax.
100 ÷ Margin before ad spend (in %)
ROAS can only be judged against that threshold. A ROAS of 3 is profitable with a 50% margin (threshold 2.00) and loss-making with 25% (threshold 4.00). The daily budget comes from dividing the monthly budget by 30.4, the factor Google Ads uses.
Google Ads cost and return examples
Example 1 — a budget that just pays off
- Monthly budget: $1,500 ($49.34 a day)
- Average CPC: $0.70 — conversion rate: 2.5% — average order value: $65 — margin: 45%
- Clicks: 1,500 ÷ 0.70 = 2,143
- Conversions: 2,142.86 × 2.5% = 53.57
- Revenue: 53.57 × $65 = $3,482.14
- Break-even ROAS: 100 ÷ 45 = 2.22
ResultCost per conversion $28.00 — ROAS 2.32 against a 2.22 threshold — $66.96 profit
Example 2 — a good margin that is not enough
- Monthly budget: $2,000 ($65.79 a day)
- Average CPC: $0.90 — conversion rate: 2% — average order value: $50 — margin: 60%
- Clicks: 2,000 ÷ 0.90 = 2,222
- Conversions: 2,222.22 × 2% = 44.44
- Revenue: 44.44 × $50 = $2,222.22
- Break-even ROAS: 100 ÷ 60 = 1.67
ResultCost per conversion $45.00 — ROAS 1.11 against a 1.67 threshold — $666.67 loss
| Conversion rate | Conversions | Cost per conversion | Revenue | ROAS | Profit |
|---|---|---|---|---|---|
| 1.875% (−25%) | 40.18 | $37.33 | $2,611.61 | 1.74 | −$324.78 |
| 2.5% (current) | 53.57 | $28.00 | $3,482.14 | 2.32 | +$66.96 |
| 3.125% (+25%) | 66.96 | $22.40 | $4,352.68 | 2.90 | +$458.71 |
In example 2, a 60% margin looks comfortable, but each sale earns $30 of margin (60% of $50) for $45 of advertising. In the table, a quarter fewer conversions flips the same budget from a $66.96 profit to a $324.78 loss. That is what the calculator's sensitivity table is for: your rates move, so the right answer is a range, not a single figure.
How to use the calculator and read the result
- 1
Pick your currency
Dollar, euro or pound: the maths is identical, only the display changes.
- 2
Enter your monthly budget
What you plan to spend on Google Ads over a month.
- 3
Take CPC and conversion rate from Google Ads
Avg. CPC and Conv. rate columns of your reports. The rate is measured per click.
- 4
Enter the average order value
The average value of an order, as Google Ads reports it as conversion value.
- 5
Add your margin before ad spend
Without it, the calculator cannot tell whether you make money. Work it out with the profit margin calculator.
| ROAS vs break-even | What it means | Decision |
|---|---|---|
| Below break-even | Every sale loses money | Fix CPC, conversion rate or margin before spending more |
| Around break-even | Break-even: advertising earns nothing | A small shift in CPC or conversion tips it over: secure it before scaling |
| Clearly above break-even | Profitable | Raise the budget in steps, checking that CPC and conversion rate hold |
The calculator's verdict reads break-even when ROAS is within 2% of the threshold. Remember this is a projection: as you raise the budget, the extra clicks often cost more, and doubling the budget does not necessarily double sales.
How to lower your cost per conversion
- Improve the conversion rate — Clear product pages, shipping times and costs stated upfront, reviews, a simple checkout.
- Polish ads and feed — Precise product titles, sharp images and up-to-date prices raise click-through rate, which can bring CPC down.
- Cut what does not sell — Block queries that never buy with negative keywords and pull products that burn budget without selling.
- Adjust targeting — Location, device and schedule: read your reports and trim what costs a lot without converting.
- Raise average order value — Bundles, upsells and a free-shipping threshold spread acquisition cost over more revenue.
- Steer with a target ROAS — Set it above break-even, calculated with the break-even ROAS calculator.
Test each lever here: change the conversion rate, the CPC or the order value and watch the effect on ROAS and profit before touching your campaigns.
On Google Shopping, a suspended account means zero sales
Shopping and Performance Max campaigns rely on your Google Merchant Center feed. If the account is suspended, ads stop serving: the budget stops running and the sales this calculator projects disappear, while your other costs carry on. The causes are often unrelated to advertising: incomplete business details, a vague return policy, prices that differ between site and feed, unproven claims on product pages.
GClimb reviews your store the way a Google reviewer would and lists the compliance issues to fix. Run the free store audit, or start with the Google Merchant Center compliance checklist.
Frequently asked questions
How much does a Google Ads campaign cost per month?
There is no fixed price and no minimum spend: you choose the budget and pay for the clicks you get. What matters is not the amount spent but what it returns. Enter your budget, CPC and conversion rate in the calculator to estimate sales, ROAS and profit.
How do you calculate cost per click (CPC)?
CPC is spend divided by the number of clicks. A campaign that cost $840 for 1,200 clicks has an average CPC of $0.70. Google Ads shows it in the Avg. CPC column of your reports: read your own value instead of assuming one.
How do you calculate cost per conversion?
Divide the budget spent by the number of conversions, or the CPC by the conversion rate. With a $0.70 CPC and a 2.5% rate, each sale costs 0.70 ÷ 0.025 = $28 of advertising. Compare that cost with the profit you make on a sale before ad spend.
Is a ROAS of 3 good?
It depends on your margin. Break-even ROAS equals 100 divided by the margin percentage: with a 50% margin it is 2, with 25% it is 4. A ROAS of 3 is therefore profitable in the first case and loss-making in the second.
Why is my actual CPC lower than my maximum bid?
Because you do not necessarily pay your maximum bid: the actual CPC is the amount really charged for a click, at most equal to your bid. With an automated bid strategy, Google sets the bid on each query and average CPC is a result to observe.
If I double my budget, do my sales double?
Not necessarily. The extra clicks often come from less qualified queries or audiences, which cost more or convert less. Raise the budget in steps and check at each stage that CPC, conversion rate and ROAS hold.
Why do my real results differ from the estimate?
The calculator applies your averages to a budget, yet CPC and conversion rate move with the season, competition and the budget itself. Use the sensitivity table to read a range, and recalculate with your most recent numbers.