Semrush Keyword Magic Tool
The Semrush Keyword Magic Tool finds related search terms when you enter a single word or phrase.
Key facts
- It is a Semrush keyword research tool designed to find relevant keyword ideas from a seed keyword.
- Semrush help pages state the database contains over 27.3 billion keywords.
- You start by entering a single word or phrase, then selecting a target country database.
- The tool returns related search terms in a table and organises them into topic-specific subgroups.
- Common metrics shown include search volume, keyword difficulty, search intent, and cost-per-click (CPC).
Also called
Keyword Magic Tool, Semrush KMT
Use it for
Discovering keyword ideas for SEO and PPC campaigns
Applies to
Google and other search engines via Semrush's database
How the Keyword Magic Tool Works
You begin by typing a seed keyword into the search box. Then you choose a country database from the dropdown. The tool queries Semrush's index and returns a list of related terms. You can also choose between Broad Match, Phrase Match, or Exact Match to control how closely terms must relate to your seed.
Results appear in a table with columns for each metric. The tool also groups keywords into topic clusters on the left sidebar. These groups help you explore subtopics without scrolling through the full list. The table columns are sortable, so you can order results by volume or difficulty to spot opportunities quickly.
Each group can be expanded to see its member keywords. You can also switch to a 'Questions' view that shows only question-based queries. This is useful for content that answers specific user questions. Additionally, you can add keywords to a project list for later analysis or export them directly.
Key Metrics and Filters
The tool displays several metrics for every keyword. Search volume is the estimated monthly searches in the selected country. Keyword difficulty is a percentage that estimates how hard it is to rank organically. Search intent labels each term as informational, navigational, commercial, or transactional. CPC shows the average cost per click in paid search.
Filters let you narrow results. You can set minimum and maximum search volume, keyword difficulty range, and specific intent. You can also filter by number of words or exclude certain terms. These filters help you focus on actionable opportunities.
The table below summarises the main metrics and their caveats.
- Search volume range
- Keyword difficulty range
- Intent type (informational, navigational, commercial, transactional)
- Number of words (e.g., 2-word phrases)
- Exclude specific terms
Common Mistakes When Using the Tool
Many users make avoidable errors that reduce the tool's value. The most common is using a very broad seed keyword, which floods you with irrelevant suggestions. Another is forgetting to set the correct country, leading to misleading data. Users also often take keyword difficulty as gospel, ignoring that it's a proprietary estimate. Finally, some focus solely on volume and ignore search intent, which can attract the wrong audience. Here are four specific mistakes and their consequences.
- Using a very broad seed keyword: This produces an oversized and less actionable list of results. Narrow your seed to a specific topic.
- Ignoring country selection: This can distort volume, intent, and competitiveness for the wrong market. Always set the correct country database.
- Treating keyword difficulty as an absolute rule: This can lead to skipping realistic opportunities or chasing impossible terms. Use difficulty as a guide, not a verdict.
- Relying only on volume and missing intent: This can produce traffic that does not match the page's purpose. Always check the intent label.
Limitations of the Tool
All metrics in the Keyword Magic Tool are estimates. Semrush calculates keyword difficulty using its own proprietary formula. Google does not use this score, and it may not reflect actual ranking difficulty. Search volume is also an estimate based on sampling, not exact Google data.
The database size of 27.3 billion keywords is impressive, but it does not include every possible query. Long-tail and very new terms may be missing. The tool also does not show historical trends or seasonality directly.
Because these are vendor estimates, you should cross-check with other sources. Google Search Console and Google Keyword Planner provide first-party data that can validate Semrush's numbers.
Using the Tool for SEO and PPC Planning
For organic SEO, the tool helps you build topic clusters. Start with a seed keyword, then explore the subgroups to find related terms. Group these into content pillars and supporting articles. The intent filter ensures you match content to user needs. For example, if you run a travel blog, start with 'budget travel' and explore subgroups like 'budget travel tips' or 'budget travel destinations' to build a content cluster.
For paid search, the CPC metric shows average bid costs. You can identify high-volume, low-competition terms for ad campaigns. The keyword groups also help structure ad groups and match types. For instance, a high-volume term like 'buy running shoes' might have high CPC, so you could target longer phrases like 'best running shoes for flat feet' to reduce costs.
Export the keyword list to a spreadsheet for further analysis. You can then prioritise by combining volume, difficulty, and relevance to your site. You can also use the tool to identify gaps in your current keyword portfolio by comparing with competitors.
Alternatives and Related Tools
Semrush offers other keyword research tools like Semrush Keyword Research. For a different approach, you can use Google Keyword Planner, which draws directly from Google's search data. The broader SEO Keyword Tool suite includes additional features for advanced analysis.
If you want a free option, small seo tools keyword provides basic keyword ideas. For understanding the concept behind the tool, see the entry on Keyword. For more on the process, see Keyword Research. To learn more about the difficulty metric, read what is keyword difficulty.
Finally, to understand how tools like this fit into the broader landscape, see how seo tools works. The parent company behind this tool is Semrush.
| Metric | What It Indicates | Caveat |
|---|---|---|
| Search volume | Estimated monthly searches in the selected country | Estimate based on sampling; not exact Google data |
| Keyword difficulty | Percentage estimate of ranking difficulty | Proprietary score; Google does not use it |
| Search intent | Label: informational, navigational, commercial, transactional | Automated classification may be inaccurate for some terms |
| CPC | Average cost per click in paid search | Based on historical data; actual bids vary |
Common mistakes
- Using a very broad seed keyword Produces an oversized and less actionable list of results
- Ignoring country selection Distorts volume, intent, and competitiveness for the wrong market
- Treating keyword difficulty as an absolute rule Can lead to skipping realistic opportunities or chasing impossible terms
- Relying only on volume and missing intent Can produce traffic that does not match the page's purpose
Questions
How do I use Semrush Keyword Magic Tool?
Enter a seed keyword and select a country database. The tool returns a list of related terms with metrics. Use filters to narrow results and explore topic groups.
What metrics does Semrush Keyword Magic Tool show?
It shows search volume, keyword difficulty, search intent, and CPC. These are estimates, not exact Google data.
How to filter keywords in Semrush Keyword Magic Tool?
Use the filter panel to set ranges for volume, difficulty, and CPC. You can also filter by intent, number of words, or exclude specific terms.
Is Semrush Keyword Magic Tool free?
No, it requires a paid Semrush subscription. A free trial may be available, but full access is part of the paid plan.
See also
- Keyword Tool IoKeyword Tool Io is a free online tool that finds keyword ideas by pulling suggestions from Goog…
- Wordstream Free Keyword ToolWordStream Free Keyword Tool is a free web tool that suggests keyword ideas for SEO and PPC fro…
- Keyword MsvKeyword Msv stands for monthly search volume: an estimate of how many times people search for a…
- SEO MonitorSEOmonitor is a software platform that tracks keyword rankings, forecasts organic traffic, and …
- Paid SEO ToolsPaid SEO tools are software you pay for to help with keyword research, site audits, rank tracki…
- Long-tail KeywordsA long-tail keyword is a specific, often multi-word search phrase that targets a narrow intent …
Sources
- Semrush Help Centre: How to Use the Keyword Magic Tool semrush.com
- Semrush Help Centre: How does Keyword Magic Tool work? semrush.com
- Google Search Central developers.google.com
Outbound links are unpaid and nofollow. If one has gone stale, tell me.