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Subreddit Finder

Find the best subreddits for any topic. Search Reddit for relevant communities and see subscriber counts ranked by size — perfect for finding where your audience hangs out.

24 subreddits for “fitness”

Ranked by subscribers

r/Fitness

A place for the pursuit of physical fitness goals. Please see the r/Fitness Wiki and FAQ at https://thefitness.wiki for help with common questions.

12.6Mmembers

r/malefashionadvice

/r/malefashionadvice

Reddit's largest men's fashion community. Making clothing less intimidating and helping you develop your own style. We welcome those who want to learn and those who want to contribute. We aim to foster an environment where everybody feels safe and welcomed and where people feel encouraged to have healthy and productive discussions. Note this sub focuses on clothing not hair style, skincare, etc.

6.5Mmembers

r/femalefashionadvice

Female Fashion Advice

Welcome to Female Fashion Advice. Here we discuss anything related Fashion. Make sure to read the rules carefully before posting, if you do have any questions please reach out to the moderators so we can help you.

5.8Mmembers

r/bodyweightfitness

Reddit's Bodyweight Fitness Community 🏸

Bodyweight Fitness is for redditors who like to use their own body to train, from the simple pullups, pushups, and squats to the advanced bodyweight fitness movements like the planche, one arm chin-ups, or single leg squats. Start your fitness journey with one of the recommended routines in our wiki! Join our Discord Server! Discord: https://discord.gg/bwf

4.8Mmembers

r/loseit

loseit - Lose the Fat

A place for people of all sizes to discuss healthy and sustainable methods of weight loss. Whether you need to lose 2 lbs or 400 lbs, you are welcome here!

4.2Mmembers

r/xxfitness

r/xxfitness

We're a community targeted at female and gender non binary/gender non conforming redditors to discuss fitness. However, all genders are welcome to contribute, all we ask is that you abide by the rules.

3.1Mmembers

r/beginnerfitness

Beginner Fitness

A safe and open space for Redditors to post their questions and thoughts about fitness training.

3.0Mmembers

r/homegym

Welcome to r/homegym. A subreddit devoted to working out at home.

A subreddit devoted to working out at home.

1.2Mmembers

r/workout

Workout: in fitness we are one

All are welcome to discuss working out in all its various aspects; discuss routines, nutrition, ask for help or support, and share your success with others! Please be kind to all.

649.2kmembers

r/FitnessDE

Fitness auf Deutsch

In diesem deutschsprachigen Subreddit dreht sich nicht nur alles um die Leibesertüchtigung und die Verbesserung der Leistungsfähigkeit, sondern auch um (zielführende) Ernährung & Nahrungsergänzung, langfristige Gesundheit und die Entwicklung der richtigen Mentalität.

411.6kmembers

r/Fitness_India

Fitness India

Welcome to the Reddit India’s Fitness Community! Ask questions, share your gym progress with others, literally anything fitness or health related. Please search the subreddit if you have any queries before making any post.

343.8kmembers

r/PetiteFitness

Welcome to your fitness community for women 5'4" and under! This is a supportive space to discuss our unique fitness and health journeys, whether you're looking to lose weight, gain weight, build strength, or maintain a healthy lifestyle. Share your victories (big and small!), workout routines, nutrition tips, and connect with others who understand the specific challenges of staying fit as a petite woman. Please read over the extended rules in our Wiki before posting and commenting.

299.2kmembers

r/veganfitness

Vegan fitness

The place to come and discuss vegan fitness, bodybuilding, and health.

232.1kmembers

r/fitness30plus

Fitness for 30+

This is a sub for discussing fitness for people over 30. Please remember, you're only over 30, you're not made of glass and you're not dead.

201.5kmembers

r/fit

Fitness

Feel free to post anything fitness related. No affiliate links or any other forms of spam allowed.

156.1kmembers

r/PlanetFitnessMembers

For members past present and future

Planet fitness is a value oriented gym. It's mostly for people looking to improve their fitness and not aimed at bodybuilding.

100.3kmembers

r/FemmeFitness

Femme Fitness

A 2SLGBTQIA+ positive and inclusive space for serious discussion about developing a feminine or andro physique with diet and exercise. Translation: Transfolks and Enbies exist, and will continue to do so. They don't need abusive or disrespectful comments on their posts

77.6kmembers

r/FitnessGirls

FitWomen!

A subreddit for images and videos celebrating athletic, strong women. Fitness Models

72.9kmembers

r/AppleFitnessPlus

The subreddit covering all things Apple Fitness+. Apple Fitness+ is a new fitness experience for everyone, powered by Apple Watch. Workout. Trainer. Time. Music.

55.2kmembers

r/Fitness_Pakistan

Welcome to the Reddit Pakistan's Fitness Community! Ask questions, share your gym progress with others, literally anything fitness or health related. Please search the subreddit if you have any queries before making any post.

35.1kmembers

r/30PlusFitness

Training, recovery, and performance for lifters and athletes 30 and beyond. Building strength, preserving muscle, optimizing recovery, navigating slower healing, hormone shifts, and the science of performing better at 35, 45, and 55+. Share what's working. Ask what isn't. Evidence-based discussion welcomed. Vendor and product reviews allowed with proof. No bro-science, no fad-pushing, no "just push harder" advice. Whether you started lifting at 17 or 47 — you belong here.

30.5kmembers

r/rs_fitness

strength, fitness, diet.

22.0kmembers

r/SingaporeFitness

A gathering place for all fitness enthusiast based in Singapore. Be it gym-ing, cross-fit, running or yoga, anything under the sun that makes you sweat!

17.5kmembers

r/FitnessOver50

A supportive health and fitness community for people 50ish and over

A community of people, aged 50ish and over, who have a genuine desire to maintain or improve their physical fitness. Always be respectful.

13.7kmembers

How to use the Subreddit Finder

  1. 1

    Enter a topic

    Any keyword, niche, brand name, or product category — the broader the term, the more results you'll see.

  2. 2

    Browse results ranked by size

    Subreddits are sorted by total subscribers, with active-user counts shown so you can quickly spot which communities are still alive.

  3. 3

    Open or save the subs that fit

    Click through to Reddit, or copy each subreddit name to plug into the Rules Checker and Best Time to Post tools.

  4. 4

    Validate before posting

    Use the Subreddit Rules Checker to confirm self-promo policy, karma minimums, and account-age requirements — so your post doesn't get auto-removed.

Why use the Subreddit Finder?

Whether you're launching a product, researching an industry, or planning a content campaign — knowing where your audience hangs out is half the battle. Here's how people typically use this tool.

Marketers researching where to promote

Stop guessing. See exactly which subreddits discuss your category, then prioritize the largest communities with active engagement for your campaigns.

Founders launching a product

Find the 5–10 subreddits where your earliest users actually live. Build a presence early, gather feedback, and announce launches in the right place.

Creators looking for niche audiences

Whether you make videos, write essays, build apps, or share art — there's a sub for it. Find the right community before posting so your work doesn't get buried.

Researchers tracking a brand or topic

See which subs discuss a product, company, or industry. Useful for sentiment analysis, competitor research, and identifying emerging trends.

Frequently asked questions

How does the Subreddit Finder work?

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When you enter a keyword, we query Reddit's official subreddit directory and return communities whose name, title, or public description matches. Results are then ranked by subscriber count, with active-user counts displayed alongside.

Is the Subreddit Finder really free?

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Yes — no signup, no credit card. The free tool has a per-IP rate limit to prevent abuse, but it's enough for casual research. If you want unlimited searches plus automatic monitoring of your chosen subreddits, that's what our paid product (ReplyMine) does.

How fresh is the subscriber data?

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Each query result is cached for 6 hours. So a search for 'saas' shows data from at most 6 hours ago. This keeps the tool fast and respects Reddit's API rate limits without sacrificing accuracy for your use case.

Why are some popular subreddits missing from results?

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A few reasons: the subreddit might be NSFW (we filter those by default), private, banned, or use a name unrelated to your search term (for example, r/Frugal won't appear when you search 'saving money'). Try synonyms or broader terms.

Can I export the list of subreddits?

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Not from the free tool — but ReplyMine, our paid product, lets you save subreddits, monitor them automatically for high-intent posts, and export to CSV. The free tool is intended for quick discovery.

How is this different from Reddit's built-in search?

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Reddit's search is mainly tuned for posts, not communities. Our tool surfaces subreddit metadata — total members, weekly active users, and public descriptions — in a single ranked view designed specifically for marketers, founders, and researchers.

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