Count characters, words, and sentences for your Reddit posts. Stay within Reddit limits for titles, post bodies, comments, flairs, and usernames.
The best Reddit posts hit a sweet spot in length. Too short and you provide no value. Too long and nobody reads it. Here is what the data says.
Titles between 60 and 120 characters get the highest upvote ratios on Reddit. Shorter titles lack context, while longer ones get truncated in feeds and lose clicks.
The highest-performing Reddit text posts land between 500 and 2,000 characters. This gives enough room to tell a story, share a lesson, or ask a detailed question without losing the reader.
Top-voted comments are concise but valuable. Comments between 100 and 500 characters are easy to scan and tend to receive 2 to 3x more upvotes than walls of text.
These are the exact limits Reddit enforces across posts, comments, flair, usernames, and communities. Bookmark this table so you never guess again.
| Field | Exact limit | Practical note |
|---|---|---|
| Post title | 300 characters | Hard cutoff enforced by Reddit's post composer. Includes spaces and punctuation, no exceptions. |
| Text post body (self post) | 40,000 characters | Generous ceiling, but most posts that get read stop well under 2,000 characters. |
| Comment | 10,000 characters | Same cap on old Reddit, new Reddit, and the mobile apps. |
| Direct message | 10,000 characters | Matches the comment limit, applies to the legacy chat/message system. |
| Chat message | Roughly 4,000 characters | Reddit does not publish an official figure here, treat this as an approximation from third party testing, not a guarantee. |
| Post flair text | 64 characters | Set by moderators per subreddit, up to 350 flair templates can exist in a community. |
| User flair text | 64 characters | Same 64 character ceiling as post flair, also capped at 350 templates per subreddit. |
| Username | 3 to 20 characters | Letters, numbers, underscores, and hyphens only. No spaces or periods. |
| Subreddit name | 3 to 21 characters | Must start with a letter, counted after the r/ prefix. |
| Display name (profile) | 30 characters | The customizable name shown on a Reddit profile page, separate from the username. |
| Profile bio / about | 200 characters | Shown on the user profile panel under the display name. |
| Subreddit short description | 500 characters | The community description shown in search results and the sidebar. |
| Poll answer options | Up to 6 options | No official per option character cap is published, but polls cannot be edited after posting and cannot run longer than one week. |
Staying under 300 characters gets your post accepted. It does not mean the full title displays everywhere. Three surfaces matter most.
In the card and classic feed layouts, long titles wrap to a second or third line instead of cutting off outright, but titles that run past two lines lose visual weight against shorter posts around them.
The official app and most third party clients show fewer lines of title before wrapping on a small screen, so the hook needs to land earlier than it would on a desktop browser.
This is not a Reddit rule, it is a Google rule. Google truncates any page title by pixel width, roughly 600 pixels on desktop, which works out to about 50 to 60 characters for typical English text before an ellipsis appears.
Reddit does not publish exact character thresholds for feed or app wrapping, so the desktop and mobile notes above are based on observed layout behavior, not an official spec.
If you repurpose the same content across platforms, this is where your copy gets cut. Every number below is sourced, click through to verify.
| Platform | Character limit | Source |
|---|---|---|
| Reddit (post title) | 300 characters | typecount.com/blog/reddit-post-character-limit |
| Reddit (text post body) | 40,000 characters | typecount.com/blog/reddit-post-character-limit |
| X / Twitter (free) | 280 characters | ferryman.io/character-limits/x |
| X / Twitter (Premium) | 4,000 characters | ferryman.io/character-limits/x |
| LinkedIn (post) | 3,000 characters | ferryman.io/character-limits/linkedin |
| Facebook (post) | Roughly 63,206 characters | cadencz.com/blog/social-media-character-limits |
| Bluesky (post) | 300 characters | ferryman.io/character-limits/bluesky |
Conventional advice says keep titles short. A larger sample of Reddit posts tells a more nuanced story.
Characters produced the highest median score in the sample
Titles at 150 or more characters outperformed shorter, punchier titles on median score, contradicting the common shortest is best advice. Top performing titles also skewed bimodal, either very short (1 to 5 words) or long (15 plus words), with mid length titles underperforming both.
View the study on Upvote.netThere is no single magic number. A one line, visual heavy post (a photo, a screenshot) can work fine at 5 to 10 words. A story or news post needs enough characters to set up the hook, sometimes well past 100.
What consistently underperforms is the middle ground: a vague 6 to 12 word title that is too short to explain itself and too long to feel punchy. Tools like MediaFast can help you test a few title lengths for the same idea before you commit to one.
Put the most important information in the first 100 characters. Reddit users scroll fast. If your opening line does not hook them, the rest of your post will not matter.
If your post exceeds 1,000 characters, use paragraph breaks, bullet points, or headers. Nobody reads a 3,000 character wall of text. White space is your friend on Reddit.
Some subreddits favor short, punchy posts. Others reward detailed, long-form content. Check the top posts in your target subreddit to see what length performs best before posting.
None of these break a Reddit rule. All of them quietly kill engagement.
Writing a wall of text with no breaks. A 2,000 character post with zero paragraph breaks reads like a terms of service page. Split it into short paragraphs every 2 to 3 sentences so mobile readers do not bounce.
Burying the hook past character 100. Reddit feeds and the mobile app show a limited slice of your title before it wraps or truncates. If the interesting part of your title sits at character 150, most scrollers never see it.
Maxing out the flair field. Post and user flair both cap at 64 characters, but flair that long usually gets clipped visually in the sidebar or next to a username. Short flair (under 20 characters) reads cleaner.
Padding a comment to sound authoritative. Comments between 100 and 500 characters consistently outperform much longer ones on upvote ratio. Long comments can still work for genuine expertise, but padding does not fool anyone.
Ignoring subreddit specific norms. A 3,000 character post might thrive in a discussion focused community and die in a meme subreddit. Check the top posts of your target subreddit before assuming a length is safe.
Assuming the title limit and the readable limit are the same thing. Reddit allows 300 characters in a title, but that does not mean 300 characters displays cleanly everywhere. The technical limit and the practical limit are two different numbers.
Forgetting that spaces count. Spaces, line breaks, and markdown formatting characters all count toward every Reddit limit. A title that looks short can still be closer to the 300 character wall than it appears.
Cutting a title should remove filler, not the reason someone would click. A few real style examples below, run each through the counter above to check your own version.
I built a small side project over the last six months as a solo founder while working a full time job and I wanted to share what happened when I finally launched it publicly last week
I launched my solo side project after 6 months of nights and weekends. Here is what happened.
Cut from 187 characters to 97. The hook (solo founder, 6 months, launch results) survives, the scene setting does not.
What is everyone's honest opinion on whether it is still worth it in 2026 to start learning a completely new programming language from scratch if you already know two others fairly well
Is it still worth learning a new programming language in 2026 if you already know two?
Cut from 189 to 88 characters by dropping the throat clearing ('what is everyone's honest opinion') and keeping the actual question.
PSA for anyone in this subreddit who might be dealing with the exact same issue I had last month because I could not find a clear answer anywhere else online after searching for hours
PSA: here is the fix for [specific issue], I could not find this answer anywhere else.
Cut from 186 to 89 characters. Naming the actual issue beats describing the search process.
Does anyone else feel like customer support across most SaaS products has gotten noticeably worse over the past couple of years or is that just something specific to my own experience lately
Has SaaS customer support gotten worse in the last two years, or is it just me?
Cut from 194 to 82 characters. Same question, none of the hedging.
Struggling to find the trim point in your own draft? A tool like MediaFast's Reddit post generator can draft a few length variants of the same idea so you can compare before publishing.
MediaFast helps you write Reddit posts that hit the right length for each subreddit and the right tone to get upvotes, not ignored.
Everything you need to know about Reddit character limits and optimal content length.
Reddit post titles have a strict limit of 300 characters. This includes spaces, punctuation, and special characters. Once you hit 300 characters, Reddit will not let you submit the post. The ideal title length for engagement is between 60 and 120 characters, though titles well past that range can still perform if they set up a clear story or question.
Reddit text posts (self posts) have a maximum body limit of 40,000 characters. This is a generous limit that allows for detailed, long-form content. Most high-performing posts use between 500 and 2,000 characters to keep readers engaged without overwhelming them.
Reddit comments have a character limit of 10,000 characters. This gives you plenty of room for detailed responses. However, comments between 100 and 500 characters tend to get the most upvotes because they are easy to read and provide value without being a wall of text.
Yes, Reddit counts spaces as characters in titles, post bodies, comments, and every other field with a limit. When checking your content against Reddit limits, always count the total characters including spaces. This tool shows you both counts so you can track exactly where you stand.
For titles, aim for 60 to 120 characters. For post bodies, the sweet spot is 500 to 2,000 characters depending on the subreddit. Comments that get the most upvotes are typically 100 to 500 characters. Longer content works well in discussion heavy subreddits like r/AskReddit or r/explainlikeimfive, while shorter posts perform better in meme or news subreddits.
Titles can wrap or truncate visually in the card style feed, in the compact mobile app view, and in browser tabs, though Reddit does not publish an exact character count for each surface. In Google search results, truncation follows Google's general pixel width rule for any page title, which lands around 50 to 60 characters for typical English text, not a Reddit specific limit.
Yes. The 300 character title limit, 40,000 character post body limit, and 10,000 character comment limit are enforced server side, so they apply the same way regardless of which Reddit interface you post from.
Reddit's 300 character title limit is tighter than a LinkedIn post (3,000 characters) but its 40,000 character post body is far more generous than a free X post (280 characters) or a Bluesky post (300 characters). See the comparison table above for the full breakdown with sources.
