Fitness & Gyms near Belmont, MA

“After years of working out on my own, I knew I needed a change. My routine was no longer delivering the results I wanted, and I realized I needed some guidance and accountability. From my first conversation with Ray, I was welcomed with encouragement, support, and a genuine commitment to helping me succeed.
The trainers are knowledgeable, motivating, and truly invested in their clients’ progress. The gym itself is modern, clean, and well-equipped, creating an environment where you actually look forward to showing up. The group classes are challenging, effective, and surprisingly fun.
Most importantly, RayFit has helped me achieve results that I wasn’t able to achieve on my own. It’s been a life-changing experience, and I feel stronger, healthier, and more confident than I have in years.
My only regret is that I didn’t sign up sooner.”

“I have regularly taken classes at OTF Belmont for the last few years. After taking classes at two other locations, I feel that this location is the cleanest I have been to. There is ample parking in the back lot, which is great when you’re running a bit late. They just got new treadmills (spring 2025) They also have two heavyweight racks and two racks of Y-bells. The staff is great, and my favorite coaches are Maggie, Kim, Rachel and Kate. For folks taking class for the first time, the morning sun comes through in locations 1-3, and afternoon sun is at the other end of the room (12-15)….if that matters to you. They typically run a 2G, and there is often room in classes, which is great for me because my schedule is somewhat unpredictable.”

“I’ve been going to Barre3 in Brookline for a little over 2 years now, and it’s the best part of my day every single day. The front desk staff and instructors are incredibly kind and welcoming, and I always feel safe and supported in my classes. I’ve grown so much stronger and can feel a significant difference in my life since going to barre. I love it!! <3”

“Amazing CrossFit studio for anyone who wants to challenge themselves! The schedule is incredibly convenient for a working parent. Every class is different and never boring. Instead, it’s highly motivating because you are training alongside dedicated people who show up religiously. The instructors are attentive - they correct your form and carefully guide you through new movements. I had never done high-intensity strength training before, and now I can't imagine my life without it! I also like the gym's minimalist design without unnecessary glamour - it is very cozy and makes you focus on yourself and surviving that hour!”

“Joining Sweat Fixx was the best decision I’ve made!! Highly recommend anyone who’s looking for a new gym to try it out, you won’t regret it and I promise you’ll be hooked!”

“I'm so happy I found Nova Fitness! Poli is so knowledgeable, kind and supportive. I really enjoy the classes which are a mix of strength training, Pilates, stretching and cardio. It's a wonderful community of women too! I love it there!”

“I signed up at Burn Needham through a 28-day challenge special. At my first class I was astonished how many people I met there attend camps 5-6 times a week. One month into it I am now one of those daily participants and I love it. The community and motivation from trainers and other campers is addictive. I feel challenged and simultaneously supported. Thanks Burn!”

“Almost three years ago, I tried out CrossFit on a whim here. Rackhouse has been a great experience from day one. The owners, Mia and Susan, put a ton of effort into keeping the gym improving. New equipment, new weights, and expanded programming. They do it all. The coaches care and will support you and help you achieve your goals no matter where you are in your fitness journey.”

“this is a great place. I‘m glad I started with D1. I have taken 10 classes so far. I already fell that much stronger than before. It‘s very structured class focusing on performance, strengthening, and core. The class breaks down to small , tangible tasks, not overwhelming at all. This is a small family business that doesn’t Have the corporation and chain store Atmosphere. I used to train with orange theory. They have the standardized protocol for classes, With videos guide you through the training process. I felt like i was a chicken on manufacturer line. At D1, The coach will design the class, it feels like personal trainer in a group setting. The equipment is excellent. After each class, I simply feel good. It is not too hard, Making me not wanting to go. I just focus on showing up. I always get very good workout. I feel that this is something that I can stick to. It is not Like some gyms That I would sign up and quit or not going.”

“Reimagym is more than just a gym. It’s a community of radiant people - some just also happen to be wonderfully knowledgeable coaches and friendly staff!

Pre-Reimagym, I was struggling to find a routine and community again after having moved. Other gyms didn't seem to offer what I was looking for, or communicate using inclusive language that made me feel sure or safe.

My first introduction to Reimagym was through comments on an FB post, and right off the bat, the vibe was.. brighter. More inviting. People spoke highly of it from a place of gratitude and love. After visiting the website and doing an in-person trial, I was reassured to continue with a membership by the inclusive and supportive language and the kindness I was met with! Every single person, coaches and members alike, radiates inclusivity and support.

I am so so so grateful to have been led to Reimagym. I feel so much better and stronger having a routine again - Even when I don't want to go to the gym, I still go and am *always* glad that I went. Not only for the great workouts, but also to see the lovely people that find themselves there as well. It's hard to feel lonely when you're surrounded by people who are rooting for you!!

Thank you Reimagym ❤️”

“I can’t say enough good things about this gym. From the moment you walk in, you can feel the energy and the level of care that goes into everything here. The facility itself is top-tier clean, well-equipped, and set up in a way that actually pushes you to work hard and improve every single day. What really makes this place special, though, is the environment. Everyone is included, no matter your level. Whether you’re just starting out or already experienced, you’re treated with respect and pushed to grow by everyone. There’s no ego, just people trying to get better together. The camaraderie here is something you don’t find anywhere. The fighters build real relationships like a family , something that is unheard of in this sport. You’re not just training next to people, you’re going through the grind together, supporting each other, and holding each other accountable.
And the coaches? Honestly, they’re on another level. Matthew Nolan and Mark Nolan lead the gym in a way that sets the standard every day, and coaches like KB, Paige, Alex and Paul bring that same intensity and care every day. They’re not just great coaches, they’re people you genuinely look up to. They push you, believe in you, and want to see you succeed both in and out of the gym. If you’re serious about boxing or even just looking to challenge yourself, this is the place to be. 5 stars isn’t enough. Without this place, I would not be who I am today, not only as a fighter but as a human being as well.”

“Best workout studio in Boston! The classes are similar to Barry’s, but with a much better format and amazing instructors. Every workout leaves you feeling challenged and truly burned out, without ever feeling rushed. The pacing is perfect, and you actually get the most out of the class. On top of that, the community is great, and the owners are always there, which makes it feel personal and welcoming. Highly recommend!”

“Fitness Unlimited is my home away from home. From the minute you walk in it is the most welcoming workout club I have ever been a member of. The instructors are all so knowledgeable, the employees are all so kind and the members are amazing! I have made so many new friends. Also, the fitness center is immaculate. There’s a full schedule of classes seven days a week.”

“My home studio is in Bedford, NH. Today I had business down in The Watch City, and i wanted to make sure I could work in a class around lunch time. The location was 2 miles from where me meetings were so it was easy to make the Noon class. My first visit to OTF Waltham and I hope to be back again!”

“Romel is a regular, hardworking guy. I've been training with him for a few months now and I am seeing and feeling the progress. The space is great, the location is ideal, and the hours are expansive: Romel is in that gym _all the time_.

Romel has clients in all kinds of situations and he can tailor the workout for you. He can meet you wherever you are, and push you up to the next level.”

“My 2yo daughter loves going to My Gym, and the structured classes have definitely boosted her physical and social development. The coaching staff is the best part about the gym! They always make sure the kids are safe and having fun, while fostering a supportive and positive environment for everyone. My daughter is always excited to see who is coaching her class, try out new challenges or games, and (usually) sit still for a puppet show. I highly recommend this branch of My Gym.”

“I dropped in while vacationing in Boston. This place was awesome! Great vibe, great people, and great coaches! They were so welcoming, and from what I experienced they had great programming. If I am ever in the area again I will be back!”

“Great perk if you are staying at the Hilton Boston Park Plaza - included with your stay. Highly recommend if this is an important amenity while traveling. You won't be disappointed.”

“Invictus Back Bay was a great drop in experience, the box has everything, everyone was friendly & Luke was a great coach. I’d recommend dropping in if in the Back Bay area.”

“Amazing time here! The instructor Dima was very kind and welcoming my first time coming and trying out Jiu Jitsu. The fellow sparrers were also understanding and informative on improvement. Great atmosphere overall”

“Flight Performance and Fitness was my first real strength training experience, and I couldn’t have asked for a better introduction. My experience was incredibly rewarding! From day one, all of the trainers knew my name, helped me through my workouts, and made sure I was using proper form. Dan Stone worked closely with me, took my goals seriously, and built a program that felt truly personalized. Magnus and Bryce were also always available to help and encourage me. I was honestly surprised by how much progress I made in only six weeks. Beyond the training itself, the gym has a fun, supportive atmosphere, with friendly coaches and a welcoming community. Highly recommend!”

“I love being at spin classes here! Pre-pandemic, I was in a 5-morning-a-week routine at my workplace gym with a fun instructor and a great little crew. Coming to FireCycle for morning classes has revived my energy and enthusiasm for getting out of bed each day! I didn't realize how much I truly missed this kind of great cardio workout. It's a welcoming place with great instructors and it is CLEAN...I mean CLEAN. It is cleaner than pretty much anywhere in my house and for sure any gym or even restaurant I've ever been to! It's so easy to just drop in, hop on a bike with your water bottle, and get into whatever dance music or mashup the instructor has cued up. They provide towels and even a shower (did I mention how clean this place is?). Lots of street parking available for early morning classes. Come join the fun and get into a great healthy new routine!”

“We’ve been here 3 times for different pieces of exercise equipment (elliptical, treadmill, and now Stairmaster) over a few years and Dave has always taken really good care of us each time. Happy to make the 40+ min drive to this location for our home fitness needs.”

“I don't know why I haven't started coming here sooner!! Everyone is so welcoming and inclusive. All of the trainers are so kind and knowledgeable. It's an amazing community they've built. Would recommend to anyone at any skill level!”

“I've been member since August 2024 and can't recommend this gym enough. I have a background in weight lifting but I could never stay consistent until I started working out here. What was great for someone like me was that I didn't need to guess or find some questionable routine on instagram to follow: the trainers make tailored programs targeted at your goals and build around any limitations or past injuries you may have. As a bonus they are also very easy going and supportive which is great for someone like me who had gym commitment issues in the past. There also isn't any pressure while you're in the weight room: there's plenty of equipment so rarely any need to work in and with the small groups you get plenty of one on one time if needed. For someone like me who just needed a little extra push, its been perfect. I've seen great results and plan to continue coming for as long as I live around Waltham. Come hang out! We're pretty fun”

“Visiting Boston this weekend and had a great Inferno class with Coach Tyler! Helpful and encouraging! When I am back in Boston I will make sure to go to this studio! (-Renee from Charlotte)”

“I have always enjoyed the F45 model, however the Medford location has a wonderful, enthusiastic, well educated group of coaches that makes coming to the gym a great experience!”

“I've tried just about every fitness program over the years—CrossFit, traditional weightlifting, running, cycling, and group classes—but Power Rowing with Bryan Fuller has been the most effective and sustainable workout I've ever found.

The workouts are incredibly efficient, combining strength and cardio in a way that delivers real results without beating up my body. The low-impact nature of rowing means I can train consistently, recover quickly, and still push myself every session.

Bryan is an outstanding coach, but he's also just a genuinely great person to spend an hour with. He's knowledgeable, encouraging, and has a fantastic sense of humor that keeps the classes light and fun, even when everyone is working hard. He knows exactly when to push you and when to make the room laugh, creating an atmosphere that's motivating without ever feeling intimidating. It's a big part of why so many people keep coming back.

The results speak for themselves: I'm in the best shape I've been in for years and have lost about 15 pounds, all while feeling stronger, healthier, and with far fewer aches and pains than I experienced with higher-impact workouts.

If you're looking for a workout that's efficient, effective, low-impact, and genuinely enjoyable, I can't recommend Power Rowing and Bryan Fuller highly enough.”

“Club 600 has a friendly community atmosphere and extremely dedicated staff. I highly recommend my trainer, Gabriella, who I have been strength training with for > a year. Gabriella balances support & motivation with well planned training programs to ensure that I continue to progress without hurting myself or getting bored.”

“Invictus Boston - Fenway has an amazing community of people that keep you in the game and give you a reason to stay motivated. The coaches have a shocking amount of patience and I am so happy they did not give up on me in the few days I dropped in.

I never thought I would enjoy any workout with how cold it is in Boston. Just getting out from the hotel to wait for the Lyft and get to gym was a struggle but just because you’re in vacation doesn’t mean we forget about it our health first.

Great facility, fantastic workout planning, top notch spot. If you were looking for a way to change your life - drop everything and go to Invictus Boston - Fenway right now!

HIGHLY RECOMMENDED!”