Calculate an exact age from a date of birth, broken down into years, months and days, with totals in weeks, days and hours, plus the countdown to the next birthday.
Getting started
Enter the date of birth.
Optionally change the target date to calculate age at a specific point rather than today.
Read the exact age plus the alternative totals and the next-birthday countdown.
Why it helps
Handles leap years and varying month lengths correctly, which manual calculation frequently gets wrong.
Calculating age at a past or future date is useful for eligibility checks.
Alternative totals in days and weeks are handy for forms and milestones.
In practice
Confirming exact age for a form, application or eligibility threshold.
Working out how old someone will be on a specific future date.
Calculating the precise gap between two dates for records or planning.
Everything people ask most about the age calculator, answered plainly.
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