Julia O.
11/18/2025
F45 has been a complete game changer for me! I've been coming here since August 2023, after I had my 2nd baby, and I can honestly say it has transformed my life. The biggest win for me is how...
F45 Training Costa Mesa Square
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(95)
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3030 Harbor Blvd Ste E
Costa Mesa, CA 92626
F45 Training is a 45-minute HIIT workout that will challenge you like never before. The F stands for functional training, a mix of circuit and HIIT-style workouts geared towards everyday movement. 45 is the total amount of time for sweat-dripping and heart-pumping fun. With thousands of exercises in our database and a nearly infinite amount of combinations, members will almost never take the same class twice. F45 Training is here to bring you the world's most innovative workout. Team Training, Life Changing!
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Reviews
5.095 reviews
Malia A.
10/21/2025
F45 has been part of my fitness journey for about 2 years when I stepped into the Costa Mesa doors and was warmly greeted and welcomed by the owner Bobby and coaches Emily, Amber and Justin. When...
Merlin R.
9/17/2025
I'm not usually one to gush about a workout, but F45 Costa Mesa deserves it. This place is different. From the moment you walk in, the energy is contagious. The staff? Top-tier. Amber, Justin,...
Danny J.
11/26/2025
Let's go! They usually have some kind of deal where you can try it out for a week free. I went to a few CrossFit classes before this and found it a little bit intimidating. At F45 they have...
Lara G.
11/17/2025
I love my F45 studio. I am currently doing the 45 day challenge and it has helped me focus, make small but impactful changes, and challenge myself. I highly recommend!
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