How is age calculated?
Count the full years since the birth date, then the full months after the last birthday, then the days left. This is how ages are counted for forms and documents.
Calculators
Age Calculator
Find exact age in years, months and days, plus the next birthday.
Runs in your browser: nothing you enter is uploaded
Enter a date of birth to see the exact age.
How it works
1
Enter the date of birth
Pick the birth date with the date picker or type it in.
2
Choose the date to measure to
Today is filled in for you. Change it to find the age on any date.
3
See the exact age
Years, months and days, plus totals and the next birthday.
Age Calculator features
- Exact age in years, months and days.
- Total months, weeks, days and hours lived.
- Countdown to the next birthday and the age you will turn.
- Find age on any past or future date.
- Shows the day of the week you were born.
- Handles leap years and February 29 birthdays.
Age Calculator FAQ
Can I find someone's age on a specific date?
Yes. Change Age on this date to any date, past or future.
What happens with a February 29 birthday?
In years without February 29, the birthday is counted on February 28.
Is my date of birth saved?
No. The calculator runs in your browser and nothing is sent anywhere.
Related Calculators
Percentage CalculatorWork out percentages, percent change, and add or take off a percent.Date CalculatorCount the days between two dates, or add and subtract days, weeks and months.Loan CalculatorSee the monthly payment, total interest and payoff date for any loan.Mortgage CalculatorEstimate your monthly mortgage payment with taxes, insurance, PMI and HOA.
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