Calculator
Age Calculator
Enter a date of birth to find the exact age in years, months, and days. Press Enter to calculate.
About this calculator
Enter any date of birth and instantly see your precise age broken down into years, months, and days. The calculator also shows your age expressed as total months elapsed, total weeks lived, and total days — useful for filling out forms that ask for age in a specific unit, or simply for satisfying curiosity. An optional 'age as of' date field lets you calculate age at any past or future reference date, making it handy for legal documents, insurance forms, school admission cut-off checks, and retirement planning. All calculations account for leap years and varying month lengths, so the result is always accurate to the day.