Age Calculator
Calculate exact age from birthdate
How It Works
The age calculator uses your birthdate and a reference date (default: today) to compute your exact age. It accounts for varying month lengths and leap years.
The result shows your age broken down into years, months, and remaining days — not just a rounded number of years.
Your next birthday countdown is computed by finding the next occurrence of your birth month and day.
Fun Life Stats
Heartbeats per day~100,800 (@ 70 bpm)
Breaths per day~21,600 (@ 15/min)
Days in a year365.25 (avg. with leap years)
Weeks in a year52.18
FAQ
Can I calculate age for a future date?
Yes — use the 'Calculate age as of' field to pick any past or future reference date to see the age at that point in time.
Why do months and days not add up to exactly 365?
Months have different lengths (28–31 days), so the 'remaining days' portion after full months are counted reflects the actual calendar difference.