Know what to expect.
Enter a few numbers and see where their height is heading. Centile does the maths with a published growth method, so there are no charts to read.
For parents of teens
See where they’re heading. Keep every step.
A pencil mark on the door frame can’t tell you how tall your child might be, and it stays behind when you move. Centile works it out in a minute and keeps every height check on your phone.
Centile Plus · join by 31 DecemberTry 3 days free, then US$24.99 a yearAbout US$2 a month.Lock in today’s price for as long as you stay subscribed. Or US$4.99 a week.- No account
- No adverts
- iPhone and Android
Just curious? Try a free estimate.
From mum’s and dad’s heights. It’s rough, and nothing is sent anywhere.
Middle
For a narrower range, Plus uses the Khamis–Roche method. It takes what you’ve already given and adds your child’s age, their height today and their weight today.
Why Centile
Better than a pencil and a tape measure.
A minute a month.
Measure, type it in, done. The change since last time and the chart appear on their own.
A record you’ll keep.
Every check is dated and kept, not pencilled on a door you’ll paint over or leave behind. It’s all on your phone, for more than one child.
Do it together.
Check in with them, not just their height, and look back together on how far they’ve come.
What you get
Inside Centile Plus.
Narrow their range. Watch them grow.
See where they stand.
Their height today against the top and bottom of their range. Plus narrows it with their age, their height today and their weight today. For ages 13 to 17½.
See how far they’ve come.
See each height check, the change since last time and the chart. Plus reminds you once a month.
Make sure nothing holds your child’s growth back.
Food, sleep and exercise help your child grow normally. Poor nutrition and real sleep problems can hold growth back while they’re still growing. No habit adds height beyond what their genes allow. The daily check-ins help make the basics a habit.
Daily check-ins for food, sleep and exercise.
Log how they ate and how long they slept, start a routine, and see the last seven days as charts.
A week of meal ideas.
Breakfast, lunch, dinner and snack ideas for every day, with easy swaps. No calorie counting.
Guided exercise routines.
Three routines, each with a warm-up, bodyweight work and a stretch, shown step by step.
Privacy
Private from the start.
No account and no ad tracking. Centile asks only for a first name or nickname and keeps it on the phone with everything else. An iPhone backup may copy it; on Android nothing is backed up.
Free and Centile Plus
Start free. Upgrade when you want more.
Free uses the Tanner method, a proven height formula. It needs three things: your child’s mum’s height, their dad’s height, and whether they’re a boy or a girl.
For a narrower range, Plus uses the Khamis–Roche method. It takes what you’ve already given and adds your child’s age, their height today and their weight today.
Their range
- your child’s range, from three things: mum’s height, dad’s height, boy or girl; and
- how we got it, and what it can’t tell you.
Try 3 days free, then US$24.99 a year
About US$2 a month.
Try the annual plan free for 3 days. Join by 31 December 2026 to lock in today’s price for as long as you stay subscribed.
Or US$4.99 a week.
- a narrower range from their age, height today and weight today (13 to 17½);
- every height check charted, with the change since last time;
- how they compare with others their age;
- a monthly reminder to check height;
- seven days of meal ideas, food and sleep check-ins, and three guided movement routines; and
- track more than one child, each with their own record.
Centile works on one phone. Everything stays on that phone, and nothing syncs to another device.
US prices shown. The free trial is for new subscribers to the annual plan. Cancel at least a day before it ends and you won’t be charged. Join by 31 December 2026 to lock in today’s price for as long as you stay subscribed. Apple or Google Play shows your local price before you pay. Subscriptions renew automatically unless cancelled, and you manage them in your Apple or Google account.
“How they compare with others their age” uses the CDC 2000 US growth reference. Source: CDC. CDC does not endorse Centile. The source data are available free from CDC. It describes them today. It is not their range and it is not a diagnosis.
Get Centile for iPhone and Android
What it can’t do
Centile can’t promise how tall your child will be.
Nobody can. Centile doesn’t know about puberty, illness, medicine or food. It can’t spot a growth problem either. See how we work out the range.
Parent questions
What parents ask first.
What if I’m worried about my child’s growth?
Talk to a doctor. Centile is a guide, not medical advice.
Can I keep more than one child?
Yes. Plus keeps more than one child on one phone.
What does it ask for?
Free asks three things: mum’s height, dad’s height, and boy or girl. It also asks you to tick that your child is 13 to 19. Plus adds their age, their height today and their weight today, for its narrower range. Everything stays on your phone.
Who sees the heights?
Only you. The heights stay on your phone. Apple or Google runs purchases.
What ages is it for?
13 and over. The Plus range runs from 13 to 17½. Centile is made for teenagers, so it starts at 13. It stops at 17½ because the published method behind Plus (Khamis–Roche, 1994) has figures only up to that age. After 17½ the free range still applies.