The Real Results Happen at Work, at Home, and Everywhere In Between.
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A 60-minute heart rate-based workout that give you the strength, balance, and energy to live better, longer.
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Recent Achievements:
Voted USA Today's #1 Best Gym: 2026 Reader’s Choice Awards.
4.8-Star Google Rating: "The cleanest studio and most welcoming staff in Colorado."
2026 Transformation Milestone: Over 1,740+ lbs lost by our Littleton community this year alone.
Join the Strongest Community in Littleton
I've been coming since summer of 2021 and love this studio. The coaches are great, they offer classes at convenient times all day and I always see a friend or two.
I joined Orange Theory about a year ago and I am totally hooked! The workouts are a great mix of cardio and weights. I get a way better workout in an hour than I ever do on my own in the gym.
In one hour I can get a great cardio and strength workout and be on with my day. The OTbeat Burn heart rate monitor lets me know how hard I'm working, which helps me to make the most of my workouts! In the past I have gotten bored with workout classes, not at OTF, every workout is fun and different
FAQ: Everything You Need to Know
I haven’t worked out in years. Is this too intense for me?
Absolutely not. Our workouts are designed for your heart rate.
Whether you are a "Power Walker," "Jogger," or "Runner," the "Orange Zone" is relative to your fitness level. Your coach will help you find the right intensity for where you are today.
What do I actually need to bring for my first class?
Wear comfortable workout clothes and athletic shoes. Bring a water bottle and a towel.
We provide the heart-rate monitors, the lockers, and the best workout. Please arrive 15 minutes early so we can get you set up and introduce you to your coach!
Where exactly are you located in Littleton?
We are conveniently located at 8555 West Belleview Avenue, Littleton Colorado 80123.
Is the first class really free?
Yes!
For local residents and first-time guests, your first session is on us. We want you to experience the energy and the science for yourself with zero obligation.
Will they try to pressure me into joining?
Absolutely not. We don't use high-pressure tactics. After your class, your coach will simply ask how you felt and show you our membership options.
If you’re ready to join the community, great! If you need to sleep on it, we’ll see you when you’re ready.
What if I decide Orangetheory isn’t the right fit for me?
No hard feelings. Fitness is personal. If you decide that heart-rate training isn't for you, we’ll high-five you for giving it a shot and wish you the best on your fitness journey. You won't be hounded by endless "Please come back" phone calls.