I found an online calculator there
Boys : growingupboys.info/tanner-stage-calculator-for-boys/
Girls : growingupgirls.info/calculator…age-calculator-for-girls/
Age :
Gender :
Tanner score :
Boys : growingupboys.info/tanner-stage-calculator-for-boys/
Girls : growingupgirls.info/calculator…age-calculator-for-girls/
Age :
Gender :
Tanner score :