Calculate Your Budget Before You Launch: Google Ads Cost Estimator

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Last Updated on: 23rd March 2024, 08:00 pm

Diving into the waters of Google Ads can feel intimidating, especially if you don’t know the cost upfront. And while there’s not a special formula to determine the cost, this article will serve as your Google Ads cost estimator and show you how to calculate your budget before you launch.

Let’s take a look!

Google Ads Cost Calculator

Google Ads Cost Calculator









First: Understand Your Target ROAS

Before you start spending money, you need to have the right mindset. Many of my clients believed they could simply give money to Google and let its algorithms handle the rest.

This leads to poorly optimised campaigns that generate low returns. Google still can’t manage your campaigns for you. And maximising your results isn’t as simple as increasing your bids or paying more.

Instead, you need to have a profitability mindset. No matter how small your budget is, focus on making the most out of every dollar (or pence) you invest by optimising your campaigns.

As your campaigns mature (Google has a learning period where it learns about your campaigns and then starts showing you the full ROI), you’ll unlock new optimisation opportunities that will reduce your cost per click.

So even if your CPC is high when using the Google AdWords cost estimator, it won’t necessarily stay that way. When managed right, your Google Ads campaigns will cost less over time.

How to Calculate Your Google Ads ROAS

Advertising budget differs from campaign to campaign, so what works for one campaign won’t necessarily work for another. You must delve into market research to estimate the proper budget.

Ideally, you should work backwards:

  • Figure out the monthly advertising budget
  • Allocate a certain percentage to the campaign
  • Factor in the time needed to test and optimise (because Google Ads doesn’t provide immediate results)

When you run a Google Ads campaign, ROAS (return on ad spend) matters the most. It shows you how profitable your campaign has been.

Calculate your ROAS with the following formula:

ROAS = revenue generated / amount spent on the campaign

In general, try to benchmark your ROAS as a 4:1 ratio ($4 earned for each $1 spent), but it depends on your industry, website quality, and – of course – your offer.

(I always say you can have the most optimised campaign in the world, but if your offer isn’t enticing to buyers, your marketing won’t be successful.)

As a PPC consultant, I don’t suggest going in with a meagre budget. You won’t get enough data to optimise your Google ad campaign. Stick to the minimums for Google Ads budgets and try to increase as soon as you see some returns.

Once you get at least 100 clicks for a keyword, you’ll gain insights into how the campaign is performing. Then, you can optimise it further to reduce your cost per click and increase conversions.

Google Ads Cost Estimator: How Much Will Your Google Ads Cost?

Option A) If You Have a Google Ads Account, You Already Have a Google AdWords Cost Estimator

If you have a Google Ads account, kick back and relax because it will evaluate the cost for you.

Log in to your Google Ads account, visit the Tools & Settings menu and head to the Keyword Planner.

Choose “Discover new keywords.

Add your own or insert your landing page URL to get suggestions from Google.

For example, I added a test keyword: “Google Ads management.”

Ultimately, you’ll get a list of keywords, volumes, competition level, and bids by position.

Then, add the keywords you’re interested in and select “Add keywords to create a plan.”

Then, click “Forecast” in the left-hand menu to see an overview of what you can expect to pay based on your location and target keywords:

Play around with different average daily budgets to find what feels right for your target ROAS!

Option B. Estimate Your Google Ads Costs without a Google Ads Account

If you don’t have a Google Ads account and don’t want to go through the process of setting up a (dummy) campaign, you can use a third-party tool.

Personally, I use Spyfu, but you can use tools like SEMrush and free alternatives, too:

From there, gauge an estimate of your daily budget. 

For example, if the average CPC is $2 and the average conversion rate is 4%, you’d need at least 100 clicks to get 4 conversions. You’d need to pay $200 to get those 100 clicks.

If you want to get 4 conversions a month, you’ll divide the $200 by the number of days in the month to make your daily budget $50.

Google Ads Budgets FAQ

Q: Is there a recommended percentage of revenue for Google Ads spending?

While there aren’t any rules, businesses typically allocate around 5-10% of their revenue to advertising. However, the answer depends on your industry, goals, and growth stage.

Q: Should I start with a small budget and increase it gradually?

Yes! Starting with a smaller budget (especially if you’re a DIY advertiser) allows you to test, analyse, and optimise without risking a lot of money. When you see positive results, you can start scaling up.

Make sure you look into the free ad credits promotion with your Google Ads agency.

Q: What’s the relationship between my bidding strategy and budget?

Your budget is how much you have to spend. Your bidding strategy dictates how you will spend it. For example, if you use the Maximise conversions bidding strategy, Google Ads will try to get the maximum number of conversions for your ad campaign with your set budget.

Of course, it’s important to be realistic here. You can’t hope to maximise your conversions with a $1 bid in a targeting environment where your competitors are paying $10 per click or more. That’s why you should focus on optimising your Quality Score to reduce your cost per click.

Q: How can I prevent overspending on Google Ads?

Set daily or campaign-level budget caps to control Google Ads spending. Then, monitor your campaigns and adjust bids and budgets as needed.

Can You Accurately Guess the Cost of Google Ads?

No. Estimates are just that – estimates. They won’t be 100% accurate, especially since your bid also depends on your ad’s Quality Score. The higher it is, the less you’ll pay for each click.

Every campaign is unique. If you’re a seasoned advertiser, Google already has your account’s historical performance, so it can optimise your campaigns. Your bidding strategy also matters; do you set bids manually or use a Smart Bidding strategy?

Google Ads cost estimation depends on a lot of moving pieces.

However, if you focus on the cost per click of your industry keywords, you’ll already be one step ahead. You can always start with a smaller budget and scale up as you learn.

If you want to jumpstart your Google Ads success, grab a copy of my best-selling Google Ads book. Or get in touch with me! My team and I would love to help you make the most of your Google Ads budget.

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