Version 5.5
This is an experimental program attempting to determine your stage of development. The results will only be as accurate as the answers that you give. Do not expect this to substitute for the accurate answers a doctor could give you concerning your development. This tool does not record the information provided.
In some sections, there might be multiple answers that describe you. If that is the case, select all that define you.
What does the number mean?
Dr. Tanner divided the time of development into five stages:
- Stage 1 is childhood. It lasts from birth until puberty.
- Stage 2 begins with the first external signs of puberty and lasts until your growth spurt.
- Stage 3 is the period when you grow the most quickly.
- Stage 4 begins when rapid growth slows down and ends when growth in height stops.
- Stage 5 is full physical maturity. There are still changes occurring, but growth in height has stopped, and your body has reached its adult shape.
Details of each stage are provided below. The calculator uses the physical characteristics you report to make the same assessment a doctor would make in determining how far you have developed. Thus, a “2.1” would mean that you have just started showing signs of entering adolescence, a “3.5” would mean you are right in the middle of your growth spurt, while a “4.8” would mean that you are almost done physically developing. The scale on the calculator goes from 1.0 to 5.5. It exceeds 5.0 to represent the additional development that occurs even after growth in height stops.
Are you curious as to what each stage of development brings? The following pages describe the changes that happen in each Tanner stage.
- Stage 1 – Childhood (Pre-Adolescence)
- Stage 2 – The Beginning of Adolescence
- Stage 3 – Rapid Growth Stage
- Stage 4 – Growth in Height Slows Down
- Stage 5 – Adulthood
References
Do you want to know where all of this came from? See Reference Works Used for the Tanner Stage Calculator.