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Age Calculator
Calculate exact age in years, months, days, total days lived, and countdown days until your next birthday.
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How to use the Age Calculator
1
Pick Date of Birth
Select your birth date on the calendar input.
2
Choose As-of Date
Defaults to today or pick a custom reference date.
3
View Life Metrics
Inspect exact years, months, days, total weeks, and days until next birthday.
Key Features & Accuracy
verifiedPrecise Calendar Math
Handles leap years and varying month day counts accurately.
verifiedBirthday Countdown
Displays exact days remaining and day of the week for your next birthday.
Frequently Asked Questions
The calculator uses calendar day intervals, accurately accounting for February 29th leap days.
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