Calculate exact age in years, months, and days from a date of birth in your browser. Optional as-of date, free, no login—ideal for forms, milestones, and planning.
Pick a birth date and optional as-of date (defaults to today). The tool returns completed years, months, and days using calendar month lengths.
Dates are interpreted in your local browser timezone at midnight boundaries for the selected calendar days.
No. If birth is after the as-of date, you will see an error instead of an age.
Day counts follow the calendar month containing the as-of date when borrowing days across month boundaries.
It is a convenience calculator. Always follow the form issuer rules for rounding age or required ID documents.
No. Math runs in your browser. Inputs are not stored as uploaded file content for analytics.
Yes. Free to use with no login required on Power Tools.
Sibling tools in the same scenario cluster. Labels are tool names only; tapping opens that tool page.