How to use the age on a specific date
Use the birthday and the date of the event, appointment or photograph. The calculator returns completed years, months and days.
How the calculation works
For reliable results, use the full birthday rather than just the birth year. The reference date must not be earlier than the birthday.
Check your inputs carefully: an incorrect date can change a result. Dates and times are entered using your device settings, and no account is needed. For formal, legal, medical or financial purposes, verify the applicable local rules and official records.
Frequently asked questions
Does this work for future dates?
Yes, you can check the age someone will reach on a future date.
Does the calculator account for leap years?
Yes. AgeGlide uses calendar-based calculations and includes 29 February where applicable.
Are the dates I enter uploaded?
No. AgeGlide calculates your results in your browser. Entered dates are not sent to our server for processing.