Welcome to Hamilton, NJ!


374 Rt 33
Mercerville, NJ, 08619

Our new state of the art facility in Mercerville, NJ has over 14,000+ sq. ft. of top of the line Fitness equipment and amenities. Retro Fitness offers the greatest selection of equipment and services available. We are very proud of our facility and are sure you will love your experience as a member of our club.

Click to view our specials this month!

Hours of Operation

Monday 5AM - 11PM
Tuesday 5AM - 11PM
Wednesday 5AM - 11PM
Thursday 5AM - 11PM
Friday 5AM - 10PM
Saturday 7AM - 6PM
Sunday 7AM - 5PM


One-On-One Personal Training
So you need a little fitness guidance? We have you covered. Our certified Personal Trainers are here to help you meet all of your fitness goals.
Top of The Line Cardio Equipment
We offer a vast variety of cardio machines. Everything from treadmills with Direct TV, to Internet connected bikes and state-of-the-art Octane ellipticals.
Retro Blends Smoothie Bar
Come finish out your workout at our Retro Blends Smoothie Bar. Our protein smoothies are delicious and nutritious. Plus, our Retro Blends can even be customized to fit your workout goals!
Full Service Pro Shop
Retro Fitness’ Pro Shop offers all the accessories, supplements and Under Armour you need to have a great workout. Need headphones, workout gloves or forgot your lock? We've got you covered.
Group FitFast Circuit Classes
Have fun working out, get your heart rate up and feel the burn with our Group FitFast Circuit Classes.
Child Sitting Service
Visit our clean, safe and fun Child Sitting is room. You work out and the kids play!
Cardio Movie Theater
Enjoy popular movies from the 80s to today while you workout on a wide selection of the very latest cardio equipment.
Over 130 Locations Nationwide
Your Retro Membership is good at all Retro Locations in the US. Show your key tag and you're in!