Calculadora de diferença de idade
Ao usar nossas calculadoras, você concorda com nossos Termos de uso (English).
Compare duas datas de nascimento para ver quem é mais velho e a diferença exata em anos, meses e dias.
Duas datas de nascimento
Diferença de idade
5y 2m 5d
Person A is older
- Total de dias (com sinal)
- 1,890
Calculadoras relacionadas
Age gap between two people
The age gap between two people is the calendar span from the older birth date to the younger one, expressed as years, months, and days — not a rounded decimal unless you convert manually. Comparing January 10, 1990 with March 15, 1995 shows Person B is younger by 5 years, 2 months, and 5 days with the default fields.
Order of entry affects the sign, not the magnitude. Person A born first yields a positive gap meaning A is older; swap the dates and the sign flips. Siblings, couples, and co-stars often quote gap in whole years socially, but months and days matter for fine-grained eligibility or trivia.
Leap years and month lengths use the same calendar-walk logic as the standalone age calculator. February 29 birthdays are valid inputs; the walk handles them without dividing by 365.
Common mistakes include comparing birth years only (two people both "born in 1990" can differ by 11 months), ignoring timezone for same-day hospital births in different zones (this tool is date-only), and using age gap for legal age-of-consent questions without checking jurisdiction-specific rules.
Pregnancy and due-date trivia sometimes quote age gaps between siblings in days — the signed total days row helps compare exact spans without converting to years first.
Twins born minutes apart show zero gap in calendar terms if same birth date — use time-of-birth elsewhere if minutes matter medically.
Historical figures with uncertain birth dates produce illustrative gaps only — genealogy records may disagree on the day.
Limits: entertainment and planning math only — not legal advice. Future birth dates produce numbers but are not meaningful for real people.
Perguntas frequentes
Which person should I enter first?
Order changes the sign only. Positive means Person A is older; negative means Person B is older. The year-month-day gap size stays the same.
Does this count partial years?
Yes — full years plus remaining months and days, not a decimal like 5.17 years.
Can I use future birth dates?
The math runs on any valid calendar dates, but future births are not meaningful for real comparisons.
Is this the same as subtracting birth years?
No — subtracting years ignores month and day. Someone born December 1995 is not a full year younger than someone born January 1995 until the later birthday passes.