Calculadora de Idade Online Grátis
Exact age with zodiac, next birthday countdown, live seconds & time-of-birth precision mode
The Age Calculator tells you your exact age in years, months, days, and even seconds — not just a rough number. It's used by everyone from parents tracking a newborn's milestones to adults checking eligibility for age-restricted applications. Enter your date of birth and get a precise breakdown alongside your zodiac sign and next birthday countdown.
Frequently Asked Questions
Sobre Esta Calculadora
Your age isn't just a number on a birthday card — it has legal, medical, and personal significance. This calculator gives you a precise breakdown in years, months, days, hours, and seconds, accounting for leap years and varying month lengths that simple subtraction gets wrong.
Beyond the basics, it shows you your zodiac sign, your upcoming birthday countdown, and how many days, weeks, or hours you've been alive. These figures come up more often than you'd expect — from pension eligibility and school enrollment deadlines to personal milestones.
The calculator works entirely in your browser, processes dates in real time, and handles any birthday from the distant past to the present day without any sign-up required.
A Calculadora de Idade informa sua idade exata em anos, meses, dias e até segundos — não apenas um número aproximado.
Como Usar
- Select your Date of Birth from the calendar.
- (Optional) Select your exact Time of Birth for second-by-second precision.
- The "End Date" defaults to today, but you can change it to calculate age at a specific point in time.
- Click Calculate to see your full age breakdown and next birthday countdown.
Exemplo Resolvido
Calculating the exact age of someone born on March 15, 1990
Entradas:
- Date of Birth: March 15, 1990
- End Date: June 6, 2026
Passo a Passo:
- Years: From 1990 to 2026 = 36 years (birthday in March already passed in 2026)
- Months: From March 15 to June 6 = 2 months and 22 days
- Total days: 36 years × 365.25 + extra days = 13,203 days
- Total weeks: 13,203 ÷ 7 = 1,886 weeks
Exemplos
Cenário: Finding out how old someone is who was born on Jan 1, 2000.
Resultado: The calculator instantly gives their exact age today, plus fun facts like their half-birthday and zodiac sign.
Limitações
- Leap years and different month lengths mean that "months" and "days" are approximated based on the calendar cycle.