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Estimate Niche Size Using Google Adsense Keyword Planner


To estimate niche size, one great tool is the Google AdSense Keyword Planner. We’re here to break it down in simple terms.

The current article is "3.7. Estimate Niche Size" of our Complete SEO Guide Box.
Previous Article: 3.6. Niche: Google Trends. Next Article: 3.8. Measure Competition

Step-by-Step Guide to Estimate Niche Size

Let’s try to find a niche size using the Google Adsense Keyword Planner. Navigate to the Google Keyword Planner page.

Starting with the Basic Numbers for a Niche

Search the term “Laptop,” export the CSV file, and calculate the total average of monthly searches with Google Adsense Keyword Planner. In this example, we’ll use a filter to show only the keywords containing the word “laptop.” At the time of writing, it should be around 8,369,150 for 433 keywords. The total average monthly search number always grows. However, you can use the number of 433 keyword ideas as an indicator that the “laptop” term is a niche. Also, check the sub-niches. There are many good examples, like the “laptop fixing” sub-niche with more results and the “laptop parts” sub-niche. Both indicate that this is a niche.

Another Example of a Niche

Let’s search “car insurance” while we estimate niche size. The search results in 6,207,750 total average monthly searches. 408 different keywords contain the “car insurance” term. This result is also an indication that this is a niche size.

Exploring Smaller Topics

Another term to search is “music lessons.” Only 114,150 total average monthly searches and 51 keywords contain the “music lessons” term. This result is deficient for a niche, so this term is the size of a small topic inside a niche rather than an independent niche.

Larger Category

The first term we searched while estimating niche size was “laptop.” Now, let’s search for the term “computer” since “laptop” is a “computer.” We received around 684 keyword ideas without filtering only the word “computer.”

With practice, you will learn to understand where to filter the term and where not. But, as a rule of thumb, you probably should filter if you see manufacturer names and models. When searching for the term “computer,” there were a few manufacturers, so there’s no need for the “filtering” step.

You need to understand that “computer” is not a niche but a category much bigger than a niche. It contains all the results for the “laptop” that we searched for earlier, “monitor,” “Raspberry Pi,” and more. So, we definitely won’t be selecting that as our niche.

Key Takeaways from Estimate Niche Size

After you find your niche, you may save the keywords from the results, so you’ll keep them in mind while writing articles.

Bonus Tips to Estimate Niche Size Efficiently

Language Matters: One word can be written or spelled differently in different languages with two or more variations. The variations are especially relevant for words of a language that came from other languages. So, search all the spelling variations of the same word.

Stay Ahead: When selecting keywords, try to forecast and add keywords for future products that haven’t launched yet. By including these potential keywords, you’ll be ahead of the curve when they become available. This action will help you to estimate niche size.

Other Tools to Consider: For keyword research, there are many popular paid services available, like Semrush, Ahrefs, and MOZ. One of the cheapest options available is Ubersuggest by Neil Patel.


Estimating niche size doesn’t have to be complex. Anyone can dive into the SEO world with the right tools and approach. Happy searching!

The current article is "3.7. Estimate Niche Size" of our Complete SEO Guide Box.
Previous Article: 3.6. Niche: Google Trends. Next Article: 3.8. Measure Competition


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