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What Is Keyword Search Volume? + 5 Free Tools to Check It

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Author:Ana Camarena

5 min read

February 26, 2026

Contributors: Carlos Silva and Christine Skopec

Uncovering keyword search volume helps you find keywords with potential to drive search visibility and even traffic to your site.

Today, we’ll show you how to use free tools to find keyword search volumes for terms people search on Google and YouTube. You’ll also learn how to find the best keywords for your site.

What Is Keyword Search Volume?

Keyword search volume is a metric that estimates how many times people search a specific keyword in search engines (like Google or YouTube).

For example, the monthly volume for the keyword “what is keyword search volume” is 40 searches per month in the U.K. and 410 searches per month globally.

Keyword Overview dashboard showing UK search volume 40, global volume 410, and country-level volume distribution by bar chart.

You can find a keyword’s search volume using specific tools (we’ll highlight some tools shortly).

And as more people search using AI platforms like ChatGPT and Gemini, some tools have AI volume estimates for search topics.

Prompt Research dashboard showing AI search volume, intent mix, brands mentioned, and source domains for the topic “ballet.”

AI volume is separate from traditional search volume. And this article focuses on keyword search volume in search engines like Google and YouTube.

Why Is Checking Search Volume Important?

Checking search volume is important because it helps you identify how many people you can potentially reach via your paid ads and organic content if you show for the corresponding keywords.

But search volume alone doesn't tell you the full picture of whether a term is worth targeting. That's why most tools show volume alongside metrics like keyword difficulty (how hard it is to rank for each keyword) and search intent (the reason people are searching for a certain keyword)

5 Free Tools to Check Google Keyword Search Volumes

You can check a keyword’s search volume for Google with any of the free tools below.

Tool
Free Requests
Additional Data
Semrush Keyword Checker
5/day
Keyword difficulty, search intent, cost per click (CPC), related keywords, SERP overview
SE Ranking
5/day
Keyword difficulty, CPC, SERP overview, related keywords, ad history
Searchvolume.io
Unlimited
None
SpyFu
Unlimited
Keyword difficulty, CPC, ad history, related keywords, backlinks, ranking history
Google Keyword Planner
Unlimited
CPC, ad competition, trends

Semrush Keyword Checker

Semrush Keyword Checker shows the entered keyword’s search volume alongside keyword difficulty, search intent, cost per click (CPC), and more.

To use the free Keyword Checker, enter the term you want to research, choose your country, and click "Check Keyword." You can run up to five requests per day.

Semrush free Keyword Overview tool with keyword entered.

You’ll see the average number of monthly searches for your keyword along with other data needed to guide your content strategy.

Keyword Checker results showing monthly search volume, global search volume, intent, keyword difficulty, and CPC data.

A helpful feature of Keyword Overview is the “SERP Analysis” section that shows the top ranking pages and each page’s Authority Score—a metric that calculates a page’s quality and SEO strength.

Knowing a site’s Authority Score helps you understand how likely your site is to rank in search engine results pages (SERPs).

SERP Analysis table showing top 10 Google results with Page Authority Score column highlighted next to referring domains, backlinks, and search traffic columns.

Upgrading to a paid Semrush SEO Toolkit plan gives you higher search limits. Plus additional information like personalized metrics and potential traffic estimates to help you prioritize keywords.

Keyword Overview for “socks” with personalized metrics widget highlighted showing volume 90.5K, Personal KD 78%, potential traffic, and CPC $2.20.

Check Search Volume

with the Keyword Overview Tool

Sign Up Now

SE Ranking

SE Ranking's free keyword tool provides search volume, keyword difficulty, and CPC data for up to five keywords per day.

SE Ranking Keyword Overview for “socks” showing search volume, keyword difficulty, CPC, global volume, and keyword ideas.

I like how SE Ranking also highlights “Related Keywords” and “Questions” to help you identify other relevant keywords to include in your content.

Searchvolume.io

Searchvolume.io lets you  enter up to 800 keywords at once to get monthly search volumes for all of them.

Searchvolume.io doesn’t give additional information like CPC or difficulty metrics, but being able to upload 800 keywords at a time makes it useful for quickly validating large keyword lists.

Searchvolume.io keyword search volume tool with keyword input field, location selector, and results table showing average monthly searches.

SpyFu

SpyFu’s keyword tool shows you monthly search volumes and metrics for paid ads—like the related keywords advertisers use in their campaign.

A free SpyFu account gets you unlimited daily keyword searches with limited data.

I like how SpyFu’s keyword tool gives users an “Estimated Clicks” metric. Knowing a keyword’s traffic potential can help prioritize content creation around keywords that are more likely to drive traffic.

SpyFu keyword overview for “socks” showing monthly volume, estimated clicks, difficulty, similar keywords, and questions.

Google Keyword Planner

Google Keyword Planner is Google's official keyword research tool that you can use with a free Google Ads account (you don't need to be running campaigns to use the tool).

You can upload up to 10,000 keywords in Google’s “Get search volumes and forecasts” feature to check metrics like average monthly searches, changes in search volume, and competition levels for paid ads.

Users who aren’t running campaigns will see volume ranges like “1K-10K,” and those who are running campaigns with sufficient ad spend will see more accurate search volumes, making Keyword Planner more useful to users running Google Ads.

Google Keyword Planner keyword ideas table showing average monthly searches, competition, and bid ranges for sock-related keywords.

One unique aspect of the Keyword Planner is the "Three month change" column. This column shows which keywords are growing or declining to help you find rising keywords to capitalize on and declining ones that you might want to avoid.

How to Check YouTube Keyword Search Volumes

You can check YouTube keyword search volumes using specific tools that focus on terms users enter into YouTube.

YouTube search volumes can differ from Google search volumes—a keyword with 375,100 Google searches might only have 6,700 YouTube searches. This means without YouTube-specific data, you could target keywords for your videos with different search volume than expected.

Side-by-side keyword overview and YouTube keyword analytics comparing search volume and competition for “compression socks.”

Here are some of the best YouTube keyword tools for finding search volume:

How to Choose Keywords

You can choose keywords to target by balancing volume against factors like competition, intent, and your site's current authority to identify realistic opportunities.

Monitor Your Keyword Rankings

Monitoring your keyword rankings for the terms you choose to target shows whether your SEO and PPC strategies are working

Use Semrush's Position Tracking tool to review your paid and unpaid Google positions for your target keywords. You can even track how visible you are in ChatGPT and Google’s AI Mode.

Rankings overview table listing keywords with positions, visibility, estimated traffic, and search volume columns highlighted.

Then, tweak and adjust your strategy based on your performance.

Research and Track Keywords

with a Free Semrush Account

Sign Up Now

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Author Photo

Ana Camarena

Ana Camarena leads Semrush’s Organic Content team. At Semrush, she helps scale blog production while maintaining quality, driving significant content growth. With 10+ years of experience in SEO and content marketing, she has developed content strategies for SaaS and e-commerce brands with an international scope. Ana has taught classes at EDEM Business School, Warwick University, and IEM Digital Business School. She holds a BA in Journalism and a Master’s in Digital Business & Innovation.

Author Photo

Ana Camarena

Ana Camarena leads Semrush’s Organic Content team, where she focuses on delivering high-quality content that drives business. With 10+ years in SEO and content marketing, she has built global content strategies for SaaS and e-commerce brands.

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