Tool
Age Calculator
Enter your date of birth and get your exact age in years, months, and days — plus total days lived, zodiac sign, and next birthday countdown.
About the Age Calculator
Our free age calculator gives you your exact age in years, months, and days from your date of birth. It also shows the total number of days you have lived, the day of the week you were born on, your zodiac sign, and how many days until your next birthday.
Age calculation is more precise than it looks. Simply subtracting birth year from the current year gives the wrong answer for around half of people at any given moment — because it ignores whether your birthday has passed yet this year. This calculator accounts for that correctly, along with leap years and variable month lengths.
Common uses: checking exact age for legal documents, calculating age for medical forms, verifying eligibility for age-restricted activities, or just satisfying curiosity about how many days you have been alive.
All calculations happen instantly in your browser. No data is stored or sent anywhere.
Explore more free tools: BMI Calculator · Time Zone Converter · Word Counter · QR Code Generator