An age calculator computes the exact age in years, months, and days between a date of birth and any target date.
About this calculator
An age calculator computes the exact age in years, months, and days between a date of birth and any target date. It handles the complexity of varying month lengths and leap years to give the precise age.
Age calculation is needed for legal documents, insurance forms, medical assessments, eligibility checks, and retirement planning.
Common uses
- Calculate exact age for passport or visa applications
- Determine age eligibility for age-restricted benefits or schemes
- Find age in days for precise medical or scientific calculations
- Calculate how many days until a birthday
Frequently asked questions
How is age calculated accurately across months?
Age is calculated by subtracting the birth date from the target date, accounting for: (1) year difference, (2) adjusting if the current month/day is before the birth month/day (subtract 1 year), and (3) computing the remaining months and days. Leap year February 29 birthdays are typically celebrated on March 1 in non-leap years.