360º Intake
We undestand your life and how training and nutrition fits into it
Transform Your body In 12-weeks.
Lost the routine you had going before summer? This 12-week program rebuilds your strength, energy, and structure in just 2–3 hours a week — built around your real schedule, not a new one you have to find time for.
One dedicated specialistplus 24/7 support and accountability
You had a great summer. Now you’re ready to feel strong, energised, and confident again.
You're looking to integrate training and healthy living and find a routine that your can actually stick to.
You don’t need more information. You need a clear plan and someone keeping you accountable.
Twelve week Body Transformation Blueprint.
Personalised Plan
Progress that doesn't reset when life gets busy, because the plan accounts for your real life, not just the workout.
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
Bi-weekly measurements
We ensure you stay on track and adapt the program to you.
The end result
We do everything possible to get you in the best shape of your life. With dedicated trainers and a proven method
Real people Real results.
Stevan, 36
Personal Training
Lous, 35
Personal Training Basic
- Lost 20kg
- Build muscle & tone
Iris, 33
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
Mozart, 42
Personal Training Basic
- Lost 50kg
- 104weeks
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.
A smarter way to train
Most fitness offerings focus on one thing. ONE brings everything together.
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
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
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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Albert Cuypstraat
Albert Cuypstraat 33 1072 CL Amsterdam
Weekdays: 7:00 - 21:00 Weekends: 9:00 - 14:00
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Have a question? Let us help.
Yes. You can pause for up to 4 weeks per calendar year, taken as 2+2 weeks or 4 consecutive weeks, with 4 weeks' notice. For cancellation: cancel at the end of your first 4-week period with no notice. After your second period begins, we ask for 4 weeks' notice. Both are handled in the Trainin app. (Note: pausing doesn't apply to one-off Flex packages.)
Our group classes are our Semi-Private Training (SPT) sessions: small-group, coach-led, and structured around twice-a-week training. Beyond that, we run community events and the occasional challenge or competition, like the ONE Open, but SPT is the core class offering.
Personal training is included in all three PT memberships — Basic (8 sessions), Premium (8 PT + 4 SPT), and Platinum (12 sessions). It's also part of the Semi-Private Premium membership (1 PT session per month) and available as a standalone PT Flex package.
No, you don’t need any experience. We build the confidence, knowledge and strength from the ground up.
Book a free consultation by leaving your details. Our Customer Success Team will reach out and set it up. In this call you will talk through your goals, what's motivating you to change, and what's held you back so far.
Semi-Private memberships run from €329 to €399, and Personal Training memberships from €789 to €1,149. Billing is every 4 weeks rather than monthly, with the first payment due before your intake session. Flex packages (one-off) start at €675 for SPT and €1,650 for PT.
There's no strict minimum, but our standard memberships are best suited to roughly 20–75 years old. We don't recommend targeted, machine-based strength training under the age of 12, bodyweight work is the better approach at that stage. For younger people we run our Stronger Future programme, and for those 65 and over we have our Golden Age class. Both are free, our way of giving back to the community.
Which September do you want?
Do nothing, and next September looks the same. Same photo. Same thought. Twelve months older. Or twelve weeks from now: leaner, stronger, finally sleeping properly. Keep it up for twelve months, and it stops being something you do. It becomes who you are.