Workout on your own
Get Started Today!

Workout with a personal trainer
Get Started Today!

Personal Training

Our team of certified professionals develops comprehensive fitness programs built around science, driven by personalized data and analysis to deliver real results – from weight loss, to endurance building, to strength and muscle gain. Our personal training experts will provide you with the tools you need – both in-gym and online – to be fit for the long term. Learn more about our trainers here.

Workout On Your Own

Tired of crowded big-box gyms where you have to battle for equipment? Come use ours! Our gyms are divided into large personal “fitness zones,” which include all the equipment you need to get a great workout, including a full squat rack, functional cable machine, weight benches and a full set of free weights. We also have ellipticals, rowers and assault bikes for cardio. See full equipment list. Flexible monthly memberships available or buy credits and use whenever you want. Couples workout for the same low price.

Drop-In Workouts

As part of our On Your Own workouts, we welcome drop-ins from locals and out of towners. Simply start an account, buy a workout credit, pick a fitness zone time slot, and stop on by. Our big difference? Couples workout for the same low price! Currently only available at our Castro location. Get started here.

3D Body Scanning

One of the best ways to reach your fitness goals is to make sure you are working with the best data to know where you started and how you are progressing on a regular basis on your fitness journey. We offer a 3D Body Scanner that tracks much more than just weight, but also body measurements, fat percentage, fat mass and lean mass. Learn more here.

Nutrition Coaching

At MX3 Fitness, we think a proper diet plays just as important a role in fitness as working out. What you eat – rather than how much you eat – is the biggest contributor to weight loss. We offer comprehensive nutrition coaching for our clients with our certified nutritionist. Sign up here.

Reach Your Fitness Goals

MX3 Fitness is proudly LGBTQ owned and operated and has been serving San Francisco since 2016. Our private gyms are located in the City’s iconic Castro and Lower Haight neighborhoods. Let us work with you to set up a custom program to help you reach your fitness goals.

Meet our Trainers