How Many Weeks Old Am I?
Weeks are handy for baby milestones and project planning. This page converts your age from birth into complete weeks plus leftover days.
Enter your date of birth to count your age.
Other age tools
About this tool
Weeks are handy for baby milestones and project planning. This page converts your age from birth into complete weeks plus leftover days. For your exact age in years, months and days use the age calculator. Related tools: date calculator, time calculator, day of the week, event countdowns.
Frequently asked questions
How many weeks old am I?
Divide your age in days by 7 and take the whole number. The remainder is the extra days beyond the last complete week.
How many weeks are in a year?
A common year has 52 weeks and 1 day; a leap year has 52 weeks and 2 days. Over years these extra days accumulate.
Why do baby milestones use weeks?
Because infants change so quickly that weeks capture development better than months in the first year.