5′11″🔒
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A family-based range, not a promise.
Three steps. One minute.
- Tap through 6 questions
Your age, your height, and your parents’ heights. No typing needed.
- We run the family formula
The mid-parental height formula, a standard reference in pediatrics.
- See your range + a plan
Your estimated adult height and simple daily habits for sleep, food, and movement.
What you unlock
- ✓😴 Wind down by 10:30
- ✓🥗 Eat a real breakfast
- 🏃 20 minutes of movement
Log your height and watch your line.
Previews. Your numbers come from your answers.
Real talk
Is this exact?
No. It’s a rough estimate from your parents’ heights with a broad range. It can’t tell how much growing you have left or check your growth plates.
Can habits make me taller?
Sleep, good food, and movement help you feel your best. No habit can guarantee extra height, and we won’t pretend otherwise.
Is the quiz free?
Yes. Taking the quiz is free. Seeing your estimate and plan needs an Heightly membership. The price is shown before checkout and you can cancel anytime.
I’m under 18. Can I join?
You can take the quiz and create an account from age 13. Ask a parent or guardian before buying a membership.