One decision.
 Lasting results.

Everyone sees a part of you. We see the whole picture: training, nutrition, sleep, stress, and the life it all has to fit into. Human Performance. Based in Amsterdam

Is this you?
At work you're your role. At home you're the one who keeps things running. At the doctor's you're ten minutes and a symptom. At the gym you're a card holder. Everyone sees a part. Nobody sees the whole. That's why it keeps falling apart.
You put in the effort. But when work gets hectic or life shifts, consistency breaks and results stay out of reach.
You've followed the plans and read the advice. Most of it contradicts the rest, and none of it is built around you.
You've invested before and it didn't hold. Trying again feels like a risk you're not sure you want to take.

1,000+ members training weekly.

Book a consult now

Rick Luger, 36

Private Training Basic

This place is more than just a gym; it’s truly a life-changing space. I’ve been training here for two months now, and I never imagined I would get this committed to my fitness journey.

Erdal Aydin

Giulia Battaglia, 33

Siobhan D'Abreu, 30

Personal Training Basic

  • Improve overall health
  • Mental well-being
  • Muscle building

Joined ONE at the end of March and it’s honestly been one of the healthiest changes I’ve made this year. What I appreciate the most is how sustainable the approach feels — not just “go hard at the gym”, but actually building habits that fit my real life structure. A definite additional call out is for ONE environment which is welcoming, motivating and grounded. Very happy I started this journey here.

Gabriel Martins, 41

Barbara van Erp, 56

Jonathan Butler, 31

Personal Training Premium

  • Improve overall health
  • Muscle building
  • Weight loss

Came back to training after a long break (and I’ve been working out for years) and honestly ONE has been the best training I’ve ever had. In just 3 months I’ve had amazing results, proper body recomposition and I feel stronger/leaner already. The sessions really push you, but in a good way and it actually works.

Panos Ellinas

Jurriaan Puijpe, 31

Semi Private Training Premium

  • Lose body fat
  • Gain body mass

Training at One has genuinely changed my life. I don’t just feel physically better than I ever have — I’m emotionally stronger too. The trainers here are incredibly dedicated; they truly understand life’s challenges and know exactly how to adapt your program to get the most out of you, even on days when you’re exhausted or emotionally drained. The environment is wonderful. Everyone is friendly, and you can tell people genuinely want to be there. It’s an incredible place, and I’m so grateful I found it. Highly recommend to anyone looking for more than just a gym.

Natalie Wills, 44

Franca Cumbo, 54

Semi Private Training Basic

  • Lose body weight
  • Become more toned
  • Feel more energetic

I’ve been blown away by my experience at One. It’s a gym that feels personal, like an actual community. When I started doing private sessions with my trainer, I immediately felt how closely my progress was being monitored to make sure I had the tools to succeed. You’re not just clocking into a class and clocking out. There are real people here who genuinely CARE about your success.

Melyssa Griffin, 37

Louise Schalkwijk, 49

Semi Private Training Premium

  • Lose body weight
  • Become more energetic
  • Move better

In just six months, I’ve lost weight, built strength, and achieved more than I thought possible. This gym’s professional approach, personalized programs, and supportive environment make it a great choice for anyone serious about their fitness goals.

Giulia Battaglia, 33

Olga Pakholiuk, 33

Personal Training Basic

  • Improve posture
  • Build muscle

Love this gym! The vibe, the concept and the energy - all spot on. It is the most inspiring and supportive workout community I have been part of.

Eerika Roos-Kulvik, 35

Barbara Van Erp, 56

Personal Training Basic

  • Improve health metrics
  • Lose body fat

Mirjam Schuele, 45

Private Training Premium

Why choose one?

Everyone sees a part. We see the whole picture.

Book your free consult

A 360º approach

We bring your training, lifestyle and context together into one system.

Your whole picture, in one dashboard

24/7 support & accountability through our app

Caloric Burn1234 cal
Lean Body Mass70.65 kg
Blood Pressure120/80
Speed32km/h

Specialist trainers

Guided by a specialist who knows your body better than you.

Structure that holds

Progress that doesn't reset when life gets busy, because the plan accounts for your real life, not just the workout.

One Tribe

Train in a private, non-intimidating space alongside people who hold the bar high.

Founded with a purpose

After losing a family member, I understood that health cannot wait. I built ONE to be more than a gym. A place where real support meets real people. So you progress in real life.

One.Journey

Choose a membership

Personal Training

One-on-one coaching built around your whole picture: training, nutrition and lifestyle, working together instead of apart.

  • One-on-one sessions with your dedicated coach
  • 360° intake: training, nutrition and lifestyle
  • 24/7 support and accountability
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Semi-Private Training

Personal coaching in a small group, built around consistency, structure and a community that pushes you forward.

  • Small group sessions with expert coaching
  • 360° intake: training, nutrition and lifestyle
  • 12-week plan of action, built around your goals
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One community

At ONE, you train alongside people who are serious about their progress, in a space built for real connection. One tribe, working toward the same standard.

Our locations

Vondelpark

Tesselschadestraat 1D 1054 ET Amsterdam

Weekdays: 7:00 – 21:00 Weekends: 9:00 – 14:00

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Prins Hendrikkade

Prins Hendrikkade 176 1011 TC Amsterdam

Weekdays: 7:00 - 21:00 Weekends: 9:00 - 14:00

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Groenburgwal

Groenburgwal 9G 1011 HR Amsterdam

Weekdays: 7:00 - 21:00 Weekends: 9:00 – 14:00

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from €329,- per month

Membership plans starting from only €83 per week.

FAQ

Have a question? Let us help.

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Connect with us and find out how training, lifestyle and context come together in one system, built around you.

Rafael Cabral

Sales Manager

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