When will you be a billion seconds old?
A billion seconds is about 31 years and 8 months. Enter your birthday to see the exact day you pass it, and your next billion-second birthdays.
You've lived
seconds so far
Billion-second birthdays at a glance
| Seconds old | Age |
|---|---|
| 0.5 billion | 15.8 years (5,787 days) |
| 1 billion | 31.7 years (11,574 days) |
| 1.5 billion | 47.5 years (17,361 days) |
| 2 billion | 63.4 years (23,148 days) |
| 2.5 billion | 79.2 years (28,935 days) |
| 3 billion | 95.1 years (34,722 days) |
The dates assume you were born at midnight local time; leap years are counted exactly. Want the other direction? LifeClock counts the seconds ahead of you, on average.