How Many Seconds Old Am I?
Your age in seconds is a surprisingly large number — and it grows every second. This page counts it live from your date of birth.
Enter your date of birth to count your age.
Other age tools
About this tool
Your age in seconds is a surprisingly large number — and it grows every second. This page counts it live from your date of birth. 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 seconds old am I?
Multiply your age in days by 86,400 (the number of seconds in a day). Enter your date of birth above and the figure updates live.
Why does the number keep changing?
Because time keeps passing. The counter adds one second every second, so the total is always exactly up to date.
Is a day always 86,400 seconds?
In civil timekeeping, yes — 24 hours of 60 minutes of 60 seconds. Leap seconds are added occasionally to keep clocks aligned with the Earth's rotation and are ignored here.