About MatCalc2.0
Science-backed growth predictions made simple for parents and coaches.
Why we built it
MatCalc2.0 is a leap forward — evolving a simple height-and-weight equation into a predictive platform that grows with your athletes.
- Predict milestones: PHV timing and growth stages with improved accuracy.
- Flag risk factors: surface likely high-risk windows before they compound.
- Continuously improves: evolving norms + ML refinements.

Where it started
Born from a coach’s curiosity and 15+ years on the ground. We kept asking better questions:
- “They’re at 82% predicted adult height… when will they hit 85% or PHV?”
- “If we wait a month to test again, do we miss the risk window?”
- “How long does PHV last — and what can we do post-PHV?”
That journey led to MatCalc2.0 — a practical tool for parents and a scalable platform for coaches.
How it works
A simple three-step process that keeps improving as you add measurements.
Add height, weight, and date of birth. Parent heights improve accuracy.
Get PHV estimates, projected adult height, and comparisons vs peer norms.
Receive a clear, shareable summary with stage-appropriate guidance.

What you’ll see
Accuracy & limitations
No prediction is perfect. MatCalc2.0 uses population-based models and an evolving dataset to estimate PHV timing and adult height. Accuracy improves with high-quality measurements, parent heights, and regular re-testing. Results are presented as ranges — not guarantees.
Athlete-centred. Parent-owned.
- Parents create and manage athlete profiles and sharing.
- Coaches connect via secure codes and can be unlinked anytime.
- Built for GDPR compliance for children’s data.
Ready to put it into practice?
Parents get clear guidance. Coaches manage squads at scale. Same science, two views.