CrossFit Gym in St. Charles, MO
UnCharted crossFit
Discover the Best Hour of Your day
We believe we are the premier gym in St. Charles because of our coaches, our classes, and our community. If you’re looking for lasting results, you’ve come to the right gym. We’re in the business of helping our members achieve their goals … for life.
A Better You Starts Here
Ready to Take the First Step to Greater Health & Fitness?
Welcome to UnCharted CrossFit, the premier facility for fitness in St. Charles, and your partner on the journey to greater health and fitness. We aim to promote a positive community environment while helping clients reach their fitness goals. We believe that reaching your goals starts with an actionable plan. Talk with one of our expert coaches to build a personalized fitness plan and join our gym in St. Charles, MO today to get results that last!
Step 1
Book a Free Intro or Trial Class
New to fitness? Book a free no-sweat intro with a coach.
Already experienced? Come check out a free trial class!
Step 2
Create Your Fitness Game Plan
During your free intro or trial class, your coach will work with you to map out a personalized success plan based on your current fitness level and goals.
Step 3
Put Your Plan into Action
We’ll guide you into the perfect training programs for your goals so you can start seeing real, lasting progress.
Our Fitness Programs
From constantly varied group classes for all ages and levels to totally personalized training with a dedicated coach, we've got all the programs you need to succeed. Explore our programs to see how we can help you find lasting fitness, and book a free no-sweat intro to get started today!
Click on any program to learn more about it.
CrossFit
Weightlifting
Personal Training
KidsFit
New to CrossFit?
Beginner On Ramp
New to CrossFit? Our On Ramp program at UnCharted CrossFit in St. Charles, MO, is the perfect introduction! Designed for beginners, this structured program teaches the foundational movements, proper technique, and workout strategies to help you transition confidently into our CrossFit classes. Led by expert coaches, On Ramp ensures you build strength, endurance, and confidence while learning at your own pace in a supportive setting.
Ready to take the first step toward a stronger, healthier you? Sign up for UnCharted CrossFit’s On Ramp program today and start your fitness journey with expert guidance!
Class Schedule
Check out our weekly schedule of fitness classes in St. Charles, MO and join us at the gym for a great workout today!
What Our Members Say
Nothing speaks louder than real results. Hear from our members about their fitness journeys and book a free intro to start your own success story today!
Love this place, I have been a member for just over 3 years, and there is no way I ever would have started, or stuck with it this long if not for Lynette and her incredible family at Uncharted. Every week I am challenged to do something new and different and even after 3 years, just this weekend was able to complete a new movement I was never able to do in the past. There is always a variety of workouts and programming which is great because I never get stuck in a rut and I am always able to improve on a weakness. Facility is second to none, coaches are some of the best people I have ever known, community will be my friends for life, and programming keeps me improving. Love this place, thanks Lynette!
- Caylin E.
This team of coaches and athletes are incredible. Love my crossfit team.
I'm working to get healthy again and have found such a sweet community at uncharted. They cheer me on, have been changing my mindset from "lose weight" to "get healthy", and have helped me figure out how to scale workouts to meet me where I'm at physically (while also pushing me to get stronger).
- Alyssa B.
I visited UnCharted CrossFit with some friends for a drop in class and my experience was great! This is the best box I’ve visited since starting CrossFit almost a decade ago. The members of the class were all very friendly and the coach Darren let me jump right in to their routine based on my experience level. As someone who normally works out at home this place made me change my mind and buy day passes to be part of a community and have access to a fantastic facility.
- Deon D.
Follow Us on Social Media
See the UnCharted CrossFit experience in action! Follow us on social media for workouts, events, and community highlights.
Ready to start your fitness success story? Book your free no-sweat intro today!
Book Your Free Intro
Don’t wait—let’s do this! Fill out the form, and we’ll reach out to answer your questions or schedule your free intro.
Start Your Fitness Transformation
The path to a stronger, fitter, healthier you starts here. Book your free no-sweat intro with a coach and take the first step toward tangible results.
