A short, curated guide — not an automatic related dump. Figures come from SubMouse's safe-for-work directory when we have them.
r/crossfit (about 1.8M members, directory rank #596) covers CrossFit methodology, sport and organization — weightlifting, functional fitness, competitions and tips. Broader strength sports, beginner-friendly Q&A and general Fitness each have clearer homes outside the CrossFit brand.
Stay on crossfit for CrossFit workouts, boxes and sport. Use strength_training for bodybuilding/powerlifting/weightlifting discussion, beginnerfitness for novice training questions, and Fitness for general physical fitness goals.
r/crossfit — CrossFit on reddit
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. • Af…
Strength Training
When to choose it: Strength sports without a CrossFit framing.
Why it is here: Listed as related; public description: bodybuilding, powerlifting, weightlifting, strongman, kettlebells, bodyweight training (about 5.0M members, rank #178).
How it differs from r/crossfit: Broad strength sports versus CrossFit methodology/sport.
Beginner Fitness
When to choose it: Safe beginner fitness questions outside CrossFit onboarding.
Why it is here: Listed as related; public description: safe open space for fitness training questions (about 3.0M members, rank #359).
How it differs from r/crossfit: Beginner general fitness versus CrossFit-specific community.
Fitness
When to choose it: General physical fitness goals and wiki-driven programming.
Why it is here: Listed as related (about 12.6M members, rank #69); also paired on Fitness vs bodyweightfitness.
How it differs from r/crossfit: General Fitness hub versus CrossFit brand community.
Run the automatic finder for r/crossfit (results are matched from our directory; that page is not indexed): Find related to r/crossfit.
Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and culture claims appear only when we have them — missing fields stay n/a. Directory rank is listing order. Communities outside the published Top 100 open in the info tool instead of a full community page. Guide updated 2026-11-07.