Free Related Keywords Finder

Enter a keyword to find related keywords and similar searches: up to 60 searches Google itself connects to it, each with monthly search volume, keyword difficulty, CPC and search intent. A free related keywords tool for subtopics, H2 sections and supporting articles.

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How it works

How to use the free related keywords finder

01
Enter your main keyword. One to four words works best, like "seo for dentists" or "standing desk".
02
Pick the country you want data for: US, UK, Canada, Australia, India, Germany, France or Spain.
03
Sort by volume or difficulty, export the list to CSV, and turn the best related keywords into H2 sections or supporting articles.

Guide

What this related keyword finder shows you

Related keywords show how Google understands a topic: the other searches people make around your keyword, often in completely different words. This tool takes Google's own "related searches" for your keyword, follows them two levels deep, and returns up to 60 of them sorted by search volume.

Unlike a keyword generator, which finds variations of your phrase, a related keyword finder surfaces the neighbouring needs: the comparisons, problems, alternatives and next steps your audience searches for. Covering them, either as sections in your main article or as separate articles that link back, builds the topical authority that helps every page on the subject rank.

What are related keywords?

Related keywords are searches that share the same underlying need as your main keyword, even when they use different words. Someone searching "standing desk" may next search "standing desk vs sitting desk", "how long to stand at a standing desk" or "best anti-fatigue mat". None of those is a rewording of the original phrase, but they all belong to the same topic.

Google learns these connections from what people search before and after each query, and shows some of them as "related searches" at the bottom of the results page. That makes related keywords one of the most reliable maps of a topic: they come from real search behaviour, not from a thesaurus.

Main keyword	Related keywords you might find
seo for dentists	dental marketing ideas, how to get more dental patients, dentist website design, local seo for dentists
standing desk	standing desk vs sitting desk, standing desk benefits, best standing desk converter, standing desk height calculator
meal prep	meal prep for beginners, high protein meal prep, how long does meal prep last, meal prep containers

These are illustrations of the kind of results to expect. Run the related keyword finder above to see the real list, with volumes, for your own keyword and country.

Related keywords vs keyword variations vs long-tail keywords

Keyword research tools return different kinds of lists, and each is useful for a different job. Knowing which is which keeps you from writing ten near-identical pages.

Type	What it is	Example for "meal prep"	Best used for
Variations	The same phrase reworded or reordered	meal prepping, meal preparation	One page; mention them naturally
Long-tail keywords	Your phrase plus more words	meal prep ideas for weight loss	Specific articles that are easy to rank
Related keywords	Different words, same topic or next step	how long does cooked chicken last in the fridge	H2 sections and supporting articles
Questions	What people ask about the topic	is meal prep worth it	FAQ sections and answer-first articles

Use the keyword generator for variations, the long tail keyword generator for longer phrases containing your seed, and the People Also Ask Tool for questions. The related keywords finder covers the part the others miss: the neighbouring searches in different words.

How to find related keywords for free

There are several free ways to find related keywords and similar searches. Use more than one: each shows a different slice of what people search.

Use this related keyword finder. It collects Google's related searches two levels deep and adds search volume, difficulty, CPC and intent, which Google's own suggestions don't show.
Scroll to the bottom of Google. The "related searches" block lists eight or so searches Google connects to yours. Click one and you'll get its related searches too.
Open the "People also ask" box. Each question you expand loads more. They're the questions to answer in your article, and the People Also Ask Tool pulls them for you.
Type slowly into the search bar. Google's autocomplete shows what people commonly type next. Try your keyword followed by each letter of the alphabet.
Look at what competitors rank for. The Competitor Keyword Analyzer shows the searches a competing site gets traffic from, and the Keyword Gap Tool shows the ones they rank for and you don't.
Check your own Search Console. The Performance report lists searches you already appear for. Related searches with impressions but no clicks are often the quickest wins.

How to read the results

Each related keyword comes with four numbers. Here's what they mean and how to use them.

Column	What it means	How to use it
Searches/mo	Average monthly Google searches in the chosen country	Shows demand. Low numbers add up across many related keywords
Difficulty	0–100 estimate of how hard it is to reach the top 10	Under 30 is realistic for most sites; compare with your own authority
CPC	What advertisers pay per click on Google Ads	A high CPC usually means buyers search it, a sign of commercial value
Intent	Why people search: informational, commercial, transactional or navigational	Match the page type to the intent: guide, comparison or product page

Difficulty means little without your site's strength next to it. A keyword difficulty of 40 is easy for an established site and very hard for a new one. Check your authority with the Domain Rating Checker, or paste a shortlist into the Keyword Difficulty Checker with your domain to get a "can you win it?" score for each keyword.

How to use related keywords in your content

Finding related keywords is the easy part. The value comes from deciding which ones belong on the same page and which deserve their own.

Pick one main keyword per page. Every page should have a clear primary search it targets. Related keywords support it; they don't replace it.
Group related keywords that share results. If two searches show mostly the same pages in Google, one page can rank for both. Compare them with the SERP Checker, or let the Keyword Clustering Tool group a list for you.
Turn close relatives into H2 sections. Related keywords that answer part of the main question make natural headings. Write each section so it answers its heading on its own.
Give distinct needs their own article. A related keyword with different results and its own intent deserves a separate page. Link it to and from your main page to build a topic cluster.
Link the cluster together. Supporting articles link up to the main page with descriptive anchor text, and the main page links down to each one. The Internal Link Checker shows what a page currently links to.
Revisit every few months. Search behaviour shifts. Re-run the related keyword finder for your main topics and add sections or articles for new related searches.

Which related keywords to target first

With 60 related keywords in front of you, prioritize. A simple order that works for most sites:

Intent that matches what you offer. A related keyword your product or service genuinely answers beats a bigger one that attracts the wrong audience.
Difficulty your site can win. Start under 30 if your site is new or has few backlinks. Move up as your authority grows.
Volume that's worth the effort. Even 20–50 searches a month is worthwhile for a specific, high-intent search. Very low volume is still fine as an H2 inside a bigger page.
Commercial signals. A higher CPC or a commercial intent label usually means people searching it are closer to buying.

This is the same logic Rankfly uses to choose the articles it writes: difficulty weighed against your site's authority, plus volume and buying intent. You can also build a full brief for any chosen keyword with the Content Brief Generator.

Example: a topic cluster built from related keywords

Say a dental clinic's marketing agency targets "seo for dentists". Running the related keyword finder gives a list that splits naturally into one main page and several supporting articles:

Main page. SEO for dentists: the complete guide, with H2s for local SEO, the website, reviews and content.
Supporting article. How to get more dental patients (a wider need: marketing, referrals, reviews).
Supporting article. Dental marketing ideas (a list post that links back to the main guide).
Supporting article. Dentist website design: what new patients look for.
Supporting article. Local SEO for dentists: Google Business Profile and maps.

Each supporting article targets its own related keyword and links to the main guide; the main guide links to each of them. Together they cover the topic far better than one long page, and each has its own chance to rank.

Common mistakes with related keywords

Stuffing them into the text. Repeating related keywords doesn't help. Cover the subtopic they represent, in natural language.
Chasing "LSI keywords". Google doesn't use LSI. Covering what searchers actually want to know is what matters.
One page for every tiny variation. Several pages targeting nearly the same search compete with each other. The Keyword Cannibalization Checker shows when that's happening.
Ignoring intent. A related keyword with transactional intent needs a product or pricing page, not a blog post.
Forgetting internal links. A topic cluster only works when the pages link to each other.

Tips

Tips for using the related keywords finder

Build topic clusters

Use related keywords as supporting articles that link to one main guide.

Turn them into H2s

Close relatives often make good section headings within the main article.

Check for overlap

If two related keywords show the same results, cover them on one page. The SERP checker shows you.

Fill the gaps

Compare with a competitor's rankings using the keyword gap tool.

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FAQ

Related Keywords Finder FAQ

Where does the data come from?

From DataForSEO, which supplies search volumes from Google Ads data and live Google results to SEO tools worldwide. Every figure is real; when there's no data for a query, the tool tells you instead of guessing.

Related keywords vs LSI keywords?

"LSI keywords" is a myth; Google doesn't use LSI. What matters is covering the related subtopics searchers care about, which is what this shows.

Is it free?

Yes. Search-data tools are limited to 5 runs per person per day because each lookup costs us real data credits. Rankfly customers get this research done automatically for their whole site.

Where do related keywords come from?

Google's own "related searches", expanded two levels deep, with volume and difficulty from DataForSEO.

Why are some related keywords very different?

Google relates searches by what people search next, not just by shared words.

How many related keywords should an article cover?

As many as fit naturally. Usually 3–8 closely related ones as sections.

Is there a free related keywords tool?

Yes, this one. Enter a keyword to get related keywords with search volume, difficulty, CPC and intent, free and without signing up, up to 5 searches a day.

How do I get related keywords for a topic?

Enter the topic's main keyword above. The tool returns the searches Google connects to it; use the closest ones as H2 sections and the rest as supporting articles.

What is a related keyword finder?

A tool that shows the searches connected to your keyword: the neighbouring topics, comparisons and next steps people search, with data to decide which ones to target.

How many related keywords does this tool show?

Up to 60 per search, sorted by monthly search volume, with difficulty, CPC and intent for each. You can export them to CSV.

Which countries can I check?

The United States, United Kingdom, Canada, Australia, India, Germany, France and Spain. Related searches and volumes differ by country, so pick the market you target.

Are related keywords good for SEO?

Yes. Covering the related subtopics of a keyword helps Google see your page, and your site, as a complete source on the topic, which helps rankings across the whole cluster.

How is this different from Google Keyword Planner?

Keyword Planner groups ideas for advertisers and shows volume ranges unless you run ads. This tool starts from Google's related searches and shows exact monthly volume, organic difficulty and intent.

Can I use related keywords for AI search too?

Yes. ChatGPT, Perplexity and Google's AI Overviews pull from pages that cover a topic fully. Answering related questions on your page makes it a better source to cite.

Related free SEO tools

All 87 free tools

Keyword Generator

Enter a seed keyword to get 60 related keyword ideas with real monthly Google search volume, keyword difficulty, CPC and search intent.

Long Tail Keyword Generator

Enter a short keyword to find longer, more specific searches that contain it, with real search volume and difficulty, so you can spot the easy wins.

Keyword Difficulty Checker

Check difficulty and search volume for up to 20 keywords at once. Add your domain to see which ones your site can realistically win.

Competitor Keyword Analyzer

Enter a competitor's domain to see the keywords they rank for in Google's top 20, sorted by the traffic they bring, with position, volume and difficulty.

Keyword Gap Tool

Compare your site with a competitor to find the keywords they rank for in Google's top 20 that your site doesn't rank for at all.

Keyword Clustering Tool

Paste a list of keywords to group them into clusters that one page can rank for together, each with its search intent.

All free keyword research tools

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