Unleash Your Passion for Fitness

At Fit Gym in Fenton, MO, fitness enthusiasts like you find the perfect playground to mix up your workouts and push your limits. Whether you’re crushing a high-energy group class, cross-training with our custom Atlantis and Arsenal Strength equipment, or joining our community for a charity challenge, our 24/7 gym is built to fuel your drive. Join our #FitFam for a fitness experience that’s as diverse as your goals.

Fit Gym entrance view

Your First Day at Fit Gym

Ready to elevate your training? At Fit Gym, fitness enthusiasts dive into a high-energy environment built for your passion. Here’s what your first day looks like:

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Why Fit Gym for Enthusiasts

Group Classes

From HIIT to strength circuits, our free group classes, offered morning and evening six days a week, keep your workouts fresh, challenging, and fun. Stay motivated with dynamic sessions and unbeatable camaraderie.

Cross-Training Freedom

Mix it up with top-tier cardio machines, free weights, Olympic lifting platforms, and dedicated cross-training room available 24/7.

Community Vibes

Join our monthly deadlift parties (with junk food!), community outreach events, or fun runs with our Fenton family, where every rep builds bonds.

Curated Equipment 

Hand-curated equipment, chosen with member input, keeps your workouts dynamic. Atlantis and Arsenal Strength rigs and specialty bars ensure you never plateau, reflecting our community’s passion.

Member Testimonials

Fit Gym of Fenton place picture
4.4
Based on 91 reviews
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Christian Kopp profile pictureChristian Kopp
02:12 10 Oct 25
This gym does have a steeper price although it absolutely makes up for in not just equipment but also community. I’ve personally have had people help me with proper form and have friendly work ins. Also it’s hardly overwhelmingly busy. I hope you choose fit gym because it is a great place.
Joshua Eckhoff profile pictureJoshua Eckhoff
22:30 30 Sep 25
I’ve been a member of several different gyms over the years, and can state unequivocally that the FitGym experience is simply the best available. The gym feels very different in that it is Always clean and the owner, and every qualified personal trainer are all very knowledgeable, friendly, professional, and supportive. I would give them a sixth star on my review if I could.
Laura Kinney profile pictureLaura Kinney
17:50 15 Aug 25
Fit Gym is the best gym I’ve ever been to! The facility is always spotless, which makes every workout so much more enjoyable. The staff and owners are incredibly friendly and welcoming, creating a community vibe that keeps me coming back. The owners go above and beyond, always checking in to make sure members feel supported and motivated. The equipment is top-notch and well-maintained, with a great variety for all types of workouts, from strength training to cardio. Fit Gym makes you feel right at home. Highly recommend.
Zoe Munie profile pictureZoe Munie
00:09 05 Jun 25
This gym might be small, but don't sleep on it! The friendly atmosphere alone will keep you coming back.

Always clean, which is hard to do for a 24 hr gym!

It's so well-equipped you can perform virtually any exercise. Moreover, equipment is top-notch and meticulously well-maintained. You only need to mention an issue and Mike and staff are on it!

It's got group classes, personal trainers, and a brand new addition of a physical therapist. Bonus: there's often a well-behaved dog, or two, around to pet.

Get after it at Fit Gym!
Joe Kuhel profile pictureJoe Kuhel
19:13 24 Oct 24
Very good experience as always, VERY clean!
Lisa L. profile pictureLisa L.
16:34 19 Oct 24
Great gym! People are friendly. Very clean.
Austin LHommedieu profile pictureAustin LHommedieu
16:58 23 Aug 24
Great owners and great atmosphere!
Alexander Emil profile pictureAlexander Emil
19:18 23 Jul 24
Just worked out at Fit City in Fenton. Great family friendly gym that has every piece of equipment for the best workout. Family owned with a friendly staff. Looking forward to working out here more!
Photo from customer reviewPhoto from customer review
Abigail Gahagan profile pictureAbigail Gahagan
00:51 03 Apr 24
I love Fit Gym! I’ve been going here for over 8 years and each improvement Mike adds to the gym has been great. They continually add new equipment and classes that make the gym experience enjoyable. Truly a judgement free zone where you are able to work out exactly as you wish. Mike is very accommodating if you have any questions or concerns as well. Definitely recommend!
Kribble the destroyer profile pictureKribble the destroyer
04:17 28 Mar 24
Love the place the atomoshere and the people. Those homemade protien cookies are also so good!!!
Brittany Anderson profile pictureBrittany Anderson
15:34 11 Sep 21
Literally the BEST gym in Jefferson County and certainly beats all the Corporate gyms around. New owners have really stepped up and made this gym a place everyone can enjoy and get a great workout in. The community is amazing and everyone's always so nice. Plus it's nice as a female being able to workout in a comfortable environment! They also just added more Bootcamp style classes, more personal trainers and a couple massage therapists!

Weekly Class Schedule

Our HIIT and Bootcamp classes run Monday through Saturday, blending strength, cardio, and teamwork to elevate your fitness. Free for all Fit Gym members—join now to experience the FitFam energy!

Ready To Reinvent Your Fitness Journey?

Join Fit Gym’s community today!

Contact Us

Fit Gym
1177 Gravois Road
Fenton, MO 63051
Phone: (636) 678-7184
Email: gm@fitgymstl.com
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