The Fitness Equation

A world-class fitness center in a world-class One Loudoun community. Email any questions or comments to

Still looking for a last-minute Valentine's Day gift? How about the gift of health and fitness! Join our Partner Training program with a friend or loved one and enjoy quality time while training together! Inquire for more details!

#TFE #OneLoudoun #SouthRiding #PartnerTraining

Start planning that Valentine’s Date night, fellas! You will surely hit a home run with the lady when you even make arrangements for baby-sitting with our Parent’s Night Out! We will take care of the kids during our playtime, Ninja Warrior and Movie Night (this month we are featuring Ralph Breaks the Internet!) Contact us today, space is limited!!

#TFE #OneLoudoun #ParentsNightOut #Valentines2019 #datenight

Get back together with GYM!! $100 OFF enrollment when you join this month!

#TFE #OneLoudoun #SouthRiding

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Our Kidz Gym Spring Break + Summer Camps are packed full of Ninja Warrior, activities, games and more! Offered over the week of Spring Break and throughout the summer, your kids will want to come back again and again for the most exciting and fulfilling weeks of an unforgettable Summer!

Register by February 28th to receive early bird pricing!

#TFE #OneLoudoun #SouthRiding

The Fitness Equation | Your Solution for Fitness | One Loudoun Luxury Fitness

Our new and improved website is now available!! Visit our website whenever you need information on classes, training, kidz gym, membership, events and so much more!! With the addition of our South Riding location, you can now find information for both clubs!

#TFE #OneLoudoun #SouthRiding The Fitness Equation at One Loudoun is Ashburn’s new luxury fitness center. Members can utilize an array of luxury amenities and high-end equipment.

TFE Spring Break Camp 2019

Give your kids a Spring Break to remember forever! Ninja Warrior Training, soccer, basketball, dance and MORE! Register by February 28th for Early Bird Pricing!!

Have you downloaded the TFE App?? What are you waiting for?! You can earn and redeem points for prizes and membership, record personal workout data, view last-minute class changes, refer friends and SO. MUCH. MORE! Get your TFE App today!

#TFE #OneLoudoun #SouthRiding #TFEApp #Rewards #Points

Happy 3-Year Anniversary to The Fitness Equation One Loudoun! We are so proud to be a part of this community and a part of YOUR health and wellness journey!

#TFE #OneLoudoun #3yearanniversary

Look no further for Spring Break and Summer plans! TFE is hosting a camp for children ages 4 - 14! Activities, games and Ninja Warrior included! Register today, space is limited.

#TFE #OneLoudoun #SouthRiding #SpringBreakCamp #SummerCamp

We hope that you enjoyed your wonderful snow day today! After reviewing tomorrow's forecast, we will be open regular hours tomorrow! Kidz Gym will be open regular hours and Group Exercise classes before 10am are cancelled! Let's get our sweat on tomorrow! Most importantly, please be safe!

#TFE #OneLoudoun #SouthRiding

Due to the continued snow and for the safety of our members and staff, we will close at 5pm today. Thank you for your understanding!

We are open today per our normal hours! Please be safe and we look forward to seeing you.

#TFE #OneLoudoun

OPEN HOUSE DAY IS TODAY!! Join us all day for FREE!!!! No guest fees all day long as we launch Les Mills and are visited by Big Bash Photo, Dee Owens- Broker and more!! Get your face painted by our amazing face painters and spend your day at TFE !

Join today and give back to our first responders - in honor of our 3-Year Anniversary this month, we are donating a portion of sales from EVERY NEW PRIMARY MEMBERSHIP this entire year to the Loudoun First Responders Foundation!

#TFE #OneLoudoun #OpenHouse

OPEN HOUSE today!!! No fees for first time guests, special events, local vendor displays, giveaways and more! And in honor of our 3-Year Anniversary this month, we are donating a portion of sales from EVERY NEW PRIMARY MEMBERSHIP this entire year to the Loudoun First Responders Foundation!

#TFE #OneLoudoun #OpenHouse

In just over two weeks, it begins!!! The Fitness Equation - South Riding is so close to opening its doors!! Join us for PREVIEW WEEK beginning on Sunday, January 27th at our beautiful, new, state of the art facility in South Riding! You are invited to join us for FREE 30-minute demos of training, group exercise classes and ninja warrior all week long! Get excited!!!

#TFE #SouthRiding #PreviewWeek

TFE Spring Break Camp 2019

Even though there is snow peaking around the corner, Spring Break will be here before you know it...which means that TFE's Spring Break Camp is getting closer!! Camp is packed full of Ninja Warrior, activities, games and more.

Give your child the best and most exciting Spring Break ever!! Register your child(ren) today to take advantage of our EARLY BIRD SPECIAL!! Visit our website for more information.

#TFE #OneLoudoun #SouthRiding #SpringBreakCamp #Camp #SpringBreak #NinjaWarrior

TFE Ninja Warrior Party

Searching for a party idea for your winter birthday? TFE Birthday Parties are available for Members and Non-Members! Plus, you can get a video just like this for your child when you invite Big Bash Photo to your party - TFE Members save on party photo packages!

#TFE #OneLoudoun #SouthRiding #locobirthdayparties #ninjawarrior

This is "TFE Ninja Warrior Party" by The Fitness Equation on Vimeo, the home for high quality videos and the people who love them.

How are those resolutions coming? Don’t make excuses! Come on into TFE and get your sweat on!

#TFE #OneLoudoun #SouthRiding

Our first Open House of the year is going to be on Saturday, January 12th! Join us for special events, free personal training and membership specials! Plus, NO FEES for first time guests!

#TFE #OneLoudoun #SouthRiding #OpenHouse

New Year, New YOU! We want to help you stay motivated and accountable this year because your success is our success! You got this!

#TFE #OneLoudoun #SouthRiding #NewYearNewYou

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Today is the LAST DAY to VOTE for TFE as the Best Fitness Center/Gym in the Loudoun Times-Mirror 2019 Best of Loudoun poll. Before you begin your festivities tonight, we ask that you take a few moments to vote!! Thank you for the continued support!! Have a safe and happy New Year's Eve!

#TFE #OneLoudoun #SouthRiding #vote #bestofloudoun

The countdown to your last workout of 2018 is ON!! Please note that the gym will close at 4pm today, December 31st and open at 7am tomorrow in the new year! Have a safe and fun New Year’s Eve and Happy 2019!!

#TFE #OneLoudoun #SouthRiding

How about one last workout in 2018 and a healthy start to 2019! We will be open from 7am - 4pm on New Year's Eve and 7am - 4pm on New Year's Day!

#TFE #OneLoudoun #SouthRiding

There are still a few days to VOTE for TFE as the Best Fitness Center/Gym in the Loudoun Times-Mirror 2019 Best of Loudoun poll. We would love and appreciate your vote! Thank you so much! Voting ends on December 31st.

#TFE #OneLoudoun #SouthRiding #Vote #BestofLoudoun

Don’t wait until the clock strikes midnight to get started on those resolutions. We have everything you need to get started TODAY. Whatever your goals may be, we can help you reach them at TFE!

#TFE #OneLoudoun #SouthRiding

From all of us to ALL of you, we wish you a very merry and a very cozy Christmas! MERRY MERRY CHRISTMAS TFE FAMILY!

There is still time to get a few last 2018 workouts in! Please note the gym will be open from 7am - 4pm tomorrow on Christmas Eve and CLOSED on Tuesday, December 25th. We wish all our members and families a happy holiday season!

#TFE #OneLoudoun #SouthRiding

Between shopping and wrapping presents, we are kindly asking that you take a few moments today to vote for TFE as the Best Fitness Center/Gym in the Loudoun Times-Mirror Best of Loudoun 2019 poll. Voting ends on December 31st. Thank you so much for all the support!

#TFE #OneLoudoun #SouthRiding #BestofLoudoun

Grab that last date night before the holiday crazies really begin! We are hosting our monthly Parent’s Night Out which will include MOVIE NIGHT - we will be showing The Incredibles 2, and providing fun snacks (popcorn) and our staff has planned games, activities, and more for your little ones while you hit the town! Open to Members and Non-Members this Saturday, December 22nd!

#TFE #OneLoudoun #SouthRiding

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It’s raining... it’s pouring...
But hey, that doesn’t stop us!!! Jingle Bell Rock and Run is happening right now at One Loudoun!!

TFE led the warm-ups at 830 and we’re waiting at the finish line for all the brave runners!

Don’t miss your opportunity to try 2 Small Group Training Sessions FREE, with Brandon Haynes and Eric Ballard, at December 22nd’s Member Appreciation Day and again at January 12th’s Open House!! By attending, Members earn 100 TFE Rewards Points, at each event!! #SmallGroupTraining

The Jingle Bell Rock & Run (5K, 10K, and1K Fun Run) at One Loudoun is THIS Saturday!! Enjoy food, music, activities for the kids and more! TFE will be leading race warm-ups!! Not to mention the after party – let your kids, meet with Santa, and take part in the festivities that will be sure to put you in that holiday spirit! To register, visit:

#TFE #OneLoudoun #JingleBellRockandRun

We love celebrating our members! Join us for Member Appreciation Day on Saturday, December 22nd! No fees for first time guests! Enjoy a day at TFE with your Friends & Family! Check in at the front desk and be automatically entered to win bonus Member Rewards Points!

#TFE #OneLoudoun #SouthRiding

Join us for a very special Parents Night Out- MOVIE NIGHT for the kiddos! December 22nd from 5/9 PM- wear PJ’s and enjoy Incredibles 2 with popcorn, fun and friends! #movienight #whyweight #tfetribe #tfeculture @tfequation

From everyone on our talented team to you our amazing members and guests, please enjoy our improved lifting platform padding! Check out this video of the installation!

Our Personal Training packages make the PERFECT gift for anyone who wants to take their gym routine up a notch in 2019! We now offer one-on-one, partner, small group and sports performance training! Give the gift of Health & Fitness!!

#TFE #OneLoudoun #SouthRiding

It's a great day at TFE!!! Due to your votes in round one, we have been named as a finalist in the Loudoun Times-Mirror Best of Loudoun 2019 poll. We are so thankful for everyone that took time out to vote! Voting is not yet over!! We now need your vote more than ever. Please take a few moments and vote TFE as the BEST FITNESS CENTER/GYM!! We cannot thank you enough!!

#TFE #OneLoudoun #SouthRiding

Members and Guests: The 3rd Floor lifting platforms and some nearby equipment will be closed tomorrow 12/11/18 from approximately 6AM - 5PM to install new flooring underneath the platforms. Come by later to enjoy the new setup!

We all know the holidays can be a time for indulgence - the drinks, the food, the desserts… they are all enticing and it is okay to indulge a bit here and there! Don’t deprive yourself, just remember it’s all about balance. And whatever you do, don’t skip those workouts at TFE!

#TFE #OneLoudoun #SouthRiding

Is your college student home for winter? Add them onto your membership during the break for a discounted rate and a month-to-month basis! Students 17 - 25 with a valid ID, certain restrictions apply.

#TFE #OneLoudoun #SouthRiding

We are counting down the minutes until we can open the doors to TFE South Riding. We cannot wait for you all to see our newest location: Coming January 2019!

#TFE #OneLoudoun #SouthRiding

Someone busier than you is working out RIGHT NOW. Never miss a Monday - come into TFE for your sweat today!

#TFE #OneLoudoun #SouthRiding #NeverMissAMonday

Want your business to be the top-listed Gym/sports Facility in Ashburn?

Click here to claim your Sponsored Listing.

Videos (show all)

TFE Spring Break Camp 2019
TFE Spring Break Camp 2019
TFE Ninja Warrior Birthday Party
Basketball Academy Open House
"Zumbathon for Guatemala" was a HUGE Success
Mrs. District of Columbia 2018 Putting in Work at TFE
This is Leiah Rocheleau
The TFE Summer Body Challenge Winner Is....




44693 Brimfield Dr
Ashburn, VA

Opening Hours

Monday 04:00 - 23:00
Tuesday 04:00 - 23:00
Wednesday 04:00 - 23:00
Thursday 04:00 - 23:00
Friday 04:00 - 23:00
Saturday 07:00 - 21:00
Sunday 08:00 - 20:00
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