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Boutique Fitness Studio in O'Fallon

Find lasting success in a supportive, female-focused community!

We help you build confidence & healthy habits to reach your goals.
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Start at any level

Whether a gym rat or a beginner, anyone will feel comfortable at our gym.

Judgment free

We are all learning and growing. If you win, we all win.

Have fun working out

Workouts may be tough, but will always be fun.

Every body is unique.
Find something that works for YOU

Small Group Fitness Classes

A mixture of cardio and strength training classes that will help transform your body by helping you to lose weight and create a lean, toned body!
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Main Programs

Nutrition

Our nutrition program aims at educating you and putting you back on the right track for success.
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Main Programs

Accountability

We can give you all of the tools to succeed but sometimes you need a little extra help!
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Main Programs

Getting started is easy

01

Schedule a Consult

We want to hear your fitness goals, assess a good starting point, and give you a quick tour of our fitness studio.
02

Set Up your 7-Day ALL ACCESS Pass

Get guidance tailored to your body and progress consistently. We will guide you every step of the way.
03

Transform Your Life

Getting fit is hard; staying fit is harder. We're here to ensure you build healthy habits and systems that keep you on the right track.

Trusted and Loved By Hundreds of O'Fallon Residents

Everything you need to crush your fitness goals

Weekend Classes

Members Only App

Women Only Classes

Easy Scheduling

Nutrition Programming

Personal Training

Fit Girl Fitness

Our community is what makes us special. And it's what will keep you going

We understand how intimidating it can be to get started on a new fitness journey. Don't worry, our aim is to make your journey as simple as possible.

Katie started Fit Girl Fitness because her story was the same story many of her clients face. She too had to overcome all the obstacles that keep people from living a healthy life.

We don’t believe in quick fixes or gimmicks. We care about your long-term success above all else.

Conveniently located just minutes from Hwy 70

Working out at the gym isn't easy. But getting there shouldn't be hard. Fit Girl Fitness is located and easily accessible from all of O'Fallon.

310 E Elm St, O'Fallon, MO 63366
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Questions? We (probably) have the answers!

Do you provide free refreshments there?
Do I have to be fit to join?
What payment methods do you accept?
What kind of movements/exercises can I expect?
Do I have to stop eating my favorite foods?

Still curious? Talk to us!

The hardest step is always the first step. It's time to act!

Book a Free Consult
Final Offer
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