Best Fitness Subreddits

Largest communities first, with fastest-growing subreddits highlighted separately.

Best Fitness Reddit Communities

This guide highlights the largest and fastest-growing fitness subreddits for lifters, runners, and health-focused communities. FreeSubStats tracks 64 Fitness & Bodybuilding communities with 43,151,888 combined members, so the list uses live subreddit analytics instead of a static editorial snapshot.

For the full sortable directory, open the Fitness & Bodybuilding subreddit analytics page.

How This List Is Built

Largest fitness subreddits are ranked by current member count
Fastest-growing communities are highlighted separately by weekly growth rate
Each entry links to a live analytics page with history, related subreddits, and current stats

Fitness Subreddit Snapshot

Tracked Subreddits
64
Total Members
43,151,888
Daily Growth
↗ +0.33%
Weekly Growth
↗ +1.41%

Largest Fitness Subreddits

#1
r/Fitness icon

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.

Members
12,504,351
#2
r/strength_training icon

r/strength_training

Discussion of all topics related to strength training: Bodybuilding, powerlifting, weightlifting, strongman, kettlebells, bodyweight training.

Members
5,000,725
#3
r/bodyweightfitness icon

r/bodyweightfitness

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

Members
4,734,865
#4
r/loseit icon

r/loseit

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!

Members
4,151,201
#5
r/bodybuilding icon

r/bodybuilding

A large fitness subreddit tracked by FreeSubStats.

Members
2,936,212
#6
r/

r/progresspics

post those awesome before/after pictures of yours!

Members
2,435,559
#7
r/

r/flexibility

Let's get flexible! Share stretching tips, post your goals and progress, and anything else relevant to flexibility/mobility. (Please read the rules before posting)

Members
2,392,064
#8
r/crossfit icon

r/crossfit

A community for discussing all things CrossFit, including: • The methodology – weightlifting, functional fitness, training, lifestyle, and tips. • The sport – athletes, competitions, endorsements, and events. • The organization – CrossFit’s management, policies, and growth. • Affiliates – advice on gyms, ownership, and coaching. • The ecosystem – media, personalities, and industry trends. Whether you’re here to improve your training or follow the sport, this is the place for you.

Members
1,838,606
#9
r/homegym icon

r/homegym

A subreddit devoted to working out at home.

Members
1,199,435
#10
r/powerlifting icon

r/powerlifting

This is a sub for the sport of powerlifting

Members
586,960

Fastest Growing Fitness Subreddits

More Best Subreddit Guides