This free age calculator finds your exact age in years, months and days from a date of birth. Students use it for forms, parents track milestones, and anyone can check age on a chosen date. Enter birth date and optional “as of” date; the result appears immediately. Calculation runs entirely in your browser, so dates are not uploaded to a server.
Everything runs in your browser. Your input is not sent to a server by this tool.
Enter date of birth and optionally a second date. The calculator shows exact years, months and days between the two dates.
Calendar arithmetic accounts for month lengths and leap years so the result matches civil age, not a simple day-count divided by 365.
Forms, eligibility checks and personal records often need precise age—not a rough year difference.
Yes. Set the “Age at the date of” field to any date after the birth date.
Age is the number of full years, months and days between the date of birth and the chosen date.
Yes. Calendar month lengths and leap days are handled by the date arithmetic.
No. Dates stay in your browser for this session and are not sent to ToolBoxy’s servers by the tool.
Yes. It is free, needs no account, and runs in the browser.