The Fortius Difference

Established in 2012, Fortius has become a staple in the San Diego Fitness Community

Discover why Fortius is One of the Top Gyms in San Diego, Year after Year!

Why Choose Fortius?

With over 7 years in business, 3 locations, and some of the highest reviews in the industry – Fortius is become a recognized name throughout the highly competitive Fitness industry in San Diego!

CrossFit Fortius provides 3 major services. Our coaches are all professionals, and have decades of direct experience and proven results in strength and conditioning of recreational and competitive athletes across multiple sports.

We have memberships for CrossFit, Olympic Weightlifting and Powerlifting. A membership in our CrossFit program includes FREE access to our world-class Weightlifting program (one of the largest in all of CrossFit) instructed by National and International Level coaches. Other CrossFit Gyms charge up to an additional $150 per month for “Barbell” clubs.

The Fortius Philosophy

Everything we do at Fortius is built on our philosophy of prioritizing safety, being goal-oriented, setting achievable standards and following sustainable and balanced programming.

Top Notch Facility and Equipment

With 3 locations in San Diego, all our locations are equipped with the best training equipment from top name brands like American Barbell and Rogue, and equipment for disciplines including Weightlifting, Powerlifting, CrossFit, Strongman and more!


Fortius is recognized as the premier “strength” gym in the San Diego CrossFit community. We are the only USAPL Certified Regional Training Center in San Diego, and our Olympic Weightlifting program is not only the largest in San Diego, but is also one of the largest in the Nation amongst CrossFit Facilities. Despite our young age, we have a track record of success in Competitive CrossFit, Weightlifting and Powerlifting.


Our excellent coaching staff boasts nearly 100 years of combined experience in multiple disciplines including CrossFit levels 1 & 2, USA Weightlifting levels 1, 2 & 4 (local to international), USA Powerlifting levels 1 & 2 (local and senior national), USA Track & Field, National Strength & Conditioning Association (NSCA), USA Skiing and more! Our staff also offers expertise and education in kinesiology, nutrition, health coaching, mobility and restoration.


Safety is our main priority at Fortius, and to reflect this, we have a record of very low injury rate. We specialize in injury prevention, striving to keep you healthy, happy and active in the gym!


Fortius prides itself on offering an all-inclusive facility. All ages, levels, backgrounds and fitness goals are welcome with open arms into our Fortius Family. We hold regular social events both inside and outside of the gym!


We offer membership options for virtually every budget, and have the best discounts in San Diego for military, students, health care providers and more. Best of all, Fortius has NO CONTRACTS!


Unlike many other gyms, we actually WANT you to come in – and often! We pride ourselves on an 87% retention rate after 1 year (despite having no long-term contracts) – meaning we do everything we can to keep our members happy and attending our classes, events, and social gatherings. If you’ve struggled with consistency with going to the gym before, you won’t have that problem at Fortius!


We know walking through the door is the hardest part. You take the first step and we’ll meet you where you are.