Rumble Boxing Flatiron/Chelsea Boxing delivers boxing & strength group fitness workouts for all fitness levels. Our boxing-inspired fitness boutique combines the sweet science of boxing with the transformative power of strength training in one seamless class. Each 10-round class is an explosive, full-body workout with HIIT, metabolic conditioning, and strength & cardio circuits. Reap rewards in every round® and rumble at your own pace.
My first boxing/boxercise gym that I settled down in—CHELSEAAA! The vibe is great, it’s clean, staff is friendly, bags are all good. Good spacing between you and other people boxing on the bags & the floor. I honestly toned down by going to 3–5 classes here, the effect for a year will definitely show even more😎. Honestly love this gym!
If you bring your own wrap & gloves you don’t need to pay first class. Similar to how in Pilates you need grip socks, here you need handwrap (they have it if u don’t), boxing gloves, and good energy! 🥊
MS
Mellonie Suen
Jan 3, 2026
5.0
Amazing studio and instructors. Staff are also super helpful in checking in and showing the layout of the studio. Love the new STRONG AND STRAIGHT UP classes.
RB
Reginald Bazile
Dec 29, 2025
5.0
Great place to workout and get in shape!!
MR
Monica Rix
Dec 29, 2025
5.0
Great instructors and tons of class options! 10/10 would recommend for a fun workout
ZN
Z Nyc
Nov 17, 2025
3.0
Studio is quite big. Prices are pretty unreasonable.
What types of fitness classes does Rumble Boxing offer?
Rumble Boxing offers boxing-inspired group fitness classes including boxing workouts, circuit-style HIIT, metabolic conditioning, and strength and cardio circuits.
Where is Rumble Boxing located?
Rumble Boxing is located at 146 W 23rd St, New York, NY 10011, USA.
What are the business hours for Rumble Boxing?
Rumble Boxing is open Monday to Thursday from 6:30 AM to 8:15 PM, Friday from 6:30 AM to 7:15 PM, and Saturday and Sunday from 8:00 AM to 4:15 PM.
Which payment methods does Rumble Boxing accept?
They accept American Express, Discover, MasterCard, and Visa credit cards.
Are there any special offers for first-time visitors at Rumble Boxing?
Yes, first-time visitors can take advantage of a 'Buy 1, Get 1 On Us' promotion.
What brands does Rumble Boxing feature?
Rumble Boxing features brands like Vooray, Onzie, Free People, Strut This, and Under Armour.
How can I contact Rumble Boxing?
You can contact them by phone at +1 347-486-6135 or email at chelsea@rumbleboxinggym.com.
Is Rumble Boxing located near other gyms or fitness centers?
Yes, nearby fitness centers include Freedom Fitness NY, Peloton, Steel Gym, StretchLab, and solidcore, which offer complementary workout options if you want variety.
Are there places near Rumble Boxing where I can relax or get beauty treatments after my workout?
Yes, nearby places for relaxation and beauty include Glosslab (nail and beauty salon), The Neuromuscular Center (massage therapy), O'live Organic Spa, Blue Light Floatation (meditation and holistic spa), and Deify Laser + Beauty Lounge (spas).
Can I grab a coffee or healthy meal near Rumble Boxing?
Jack's Stir Brew Coffee is a nearby cafe offering coffee and vegetarian options, perfect for a post-workout refreshment.