YouTube Video SEO Score Calculator

The calculator reads your title and description as you type and counts every character. Three yes or no answers cover the items it cannot see.

1. Paste your video title, then the search term you want the video to be found for.
2. Paste the full description. The tool counts characters, hashtags and chapter timestamps.
3. Answer the thumbnail, chapters and captions questions, then work through the still-to-do list.

A YouTube video SEO score is a single number that sums up how well a video's metadata is filled in. YouTube itself issues no such score. Every score you see online, including this one, is a third-party construct, so what matters is what goes into it.

This score counts only items that YouTube Help documents. YouTube says its search system prioritises three elements: relevance, engagement and quality. For relevance it looks at how well the title, tags, description and video content match the search query. The checklist covers the parts of that sentence you control before publishing.

What the Score Is Not

The score is not a ranking prediction. YouTube also weighs engagement, such as the watch time of a video for a query, and signals of channel expertise and trust. A video with a 100% checklist can still rank low, and a video with missing chapters can rank first. YouTube also states that it accepts no payment for better placement in organic search results.

1. Title: passes when it has 1 to 100 characters, the official limit.
2. Description: passes when it has 1 to 5,000 characters, the official limit.
3. Custom thumbnail: passes when you answer yes.
4. Chapters: timestamps in the description must number at least 3, start at 00:00, run in ascending order and sit 10 seconds or more apart. With no timestamps, your yes or no answer is used.
5. Captions: passes when you answer yes.
6. Search term: two extra checks, one for the title and one for the description, apply only when you enter a term.

Five checks apply without a search term and seven with one. Every check counts the same, because YouTube publishes no weights. Hashtags are counted and shown, and they change the verdict only above 60.

Example values only. A gardening creator targets the search term repot a monstera.

Checklist completeness = 6 / 7 x 100 = 86%. The still-to-do list shows one task: add captions. A chapter list of 00:00, 02:15 and 05:40 would also pass, because it has 3 timestamps, starts at zero and leaves 135 and 205 seconds between entries.

Character Limits

YouTube Help states that video titles have a limit of 100 characters and descriptions a limit of 5,000 characters. Neither field can include invalid characters.

Chapter Rules

The first timestamp must be 00:00. A video needs at least three timestamps in ascending order, and the minimum chapter length is 10 seconds. Timestamps you type override automatic chapters.

Thumbnail Requirements

Custom thumbnails need a verified account. YouTube recommends 3840 x 2160 pixels for videos with a minimum width of 640 pixels, JPG or PNG format, and a 16:9 ratio. The file limit is 2 MB on mobile and 50 MB on desktop. Check a crop with the aspect ratio calculator.

Hashtags

YouTube's hashtag page says that a video with more than 60 hashtags has every hashtag ignored. Up to three hashtags from the description appear by the title.

Captions

YouTube's captions page says subtitles and captions share a video with a larger audience, including deaf or hard-of-hearing viewers and viewers who speak another language.

YouTube Help ranks the metadata fields plainly: the title, thumbnail and description are more important for discovery than tags.

Tags help most when the topic is commonly misspelled. YouTube adds that excessive tags in a description break its spam policy, so this checklist leaves tag counts out.

Before You Publish

Run the draft title and description through the counters. A 0 in the still-to-do list means no documented item is missing.

Auditing Old Uploads

Older videos often lack chapters and captions. Convert chapter start points with the seconds to minutes converter when your notes are in seconds.

Briefing an Editor or Client

The still-to-do line is a ready task list. Copy the report and send it.

After Publishing

Metadata is only the start. Watch how viewers respond with the audience retention calculator and the click-to-watch conversion calculator.

1. Treating a Score as a Ranking Forecast

No outside tool sees YouTube's engagement or quality signals. A checklist confirms complete metadata and nothing more.

2. Chasing an Ideal Title Length

YouTube publishes a 100 character limit and no ideal length. Advice such as 45 to 70 characters comes from third parties.

3. Stuffing Tags

Tags play a minimal role, and excessive tags in the description are against policy.

4. Starting Chapters After 00:00

A list that opens at 00:15 creates no chapters at all.

5. Adding Dozens of Hashtags

Above 60, all of them are ignored. Unrelated hashtags can get a video removed.

6. Writing a Title That Misleads

The search term belongs in the title only when the video delivers it. YouTube enforces a misleading metadata policy.

The counters are exact for the text you paste. The score covers documented metadata items and nothing beyond them.

A browser counts some emoji as 2 characters, so a title full of emoji can read slightly longer here than in YouTube Studio.

A YouTube title can be up to 100 characters. YouTube Help states the limit and adds that titles cannot include invalid characters.

A YouTube description can be up to 5,000 characters. The counter on this page shows how many you have used and how many are left.

No. YouTube publishes no SEO score. Any score from a tool is that tool's own method, and this one is a checklist completeness percentage.

No. YouTube search also weighs engagement, such as watch time for a query, and quality signals for the channel. A complete checklist only removes metadata gaps.

Only a little. YouTube Help says tags play a minimal role in discovery and are most useful when a topic is commonly misspelled.

Stay at 60 or fewer. YouTube says it ignores every hashtag on a video that has more than 60, and up to three appear by the title.

Chapters need at least three timestamps in ascending order, the first at 00:00, and each chapter 10 seconds or longer. A missing 00:00 line is the usual cause.

YouTube names three elements: relevance, engagement and quality. Relevance looks at how well the title, tags, description and video content match the query.

YouTube publishes no rule about position. The checklist only tests whether the phrase appears, so write the title for the viewer.

No. The text stays in your browser and nothing is sent to us. Save keeps a result only in this browser.

• Edit video settings (YouTube Help, read 2026-10-01; title limit of 100 characters and description limit of 5,000 characters).
• How YouTube search works (YouTube Help, read 2026-10-01; relevance, engagement and quality).
• Video Chapters (YouTube Help, read 2026-10-01; 00:00 start, at least three timestamps, 10 second minimum).
• Add custom thumbnails on YouTube (YouTube Help, read 2026-10-01; resolution, format, file size and 16:9 ratio).
• Add tags to your YouTube videos (YouTube Help, read 2026-10-01; tags play a minimal role in discovery).