Baby age calculator
Enter a birthday to see your baby's exact age in days, weeks, months and years, today or on any other date, using real calendar months.
Enter a date of birth to see the age in years, months, weeks and days.
How it works
- 1Enter your baby's date of birth.
- 2Change the “as of” date to check any day, past or future.
- 3Copy the summary or download an age card to share.
Questions
How are months counted?
By calendar month, the way people usually say an age: a baby born on 31 January is one month old on 28 (or 29) February, the last day of that month. Weeks and days are exact counts.
Is my baby's birthday saved?
No. The calculator runs in your browser and nothing is sent to us unless you sign in and choose to save details to your account.
Keep it all in one book
Photos, monthly stats, milestones and letters, turned into an animated flipbook to share and a PDF to print.
Start your memory book