Age Calculator
Enter your date of birth and find out exactly how old you are, in units that make it feel more real.
This tool calculates your exact age from your date of birth, broken down into years, months, days, weeks, total hours, and an estimated heartbeat count.
Knowing you are 34 years old is fine. Knowing you are 12,410 days old, or that your heart has beaten roughly 1.3 billion times, hits differently. Equally, it is a useful reminder that time is passing, which is either motivating or mildly unsettling depending on the day.
How we work it out
The years, months, and days breakdown uses calendar arithmetic, adjusting for the varying lengths of months. Total days and hours are calculated from the exact millisecond difference between your birth date and now. Heartbeats are estimated at 70 beats per minute, which is the widely used average for adults at rest.
Questions
Is this accurate to the minute?
The total days and hours are accurate to the current moment. The years, months, and days breakdown is accurate to the current calendar date. If you were born at a specific time of day, the hours figure will be slightly off until we know your exact birth time, which we do not ask for.
How accurate is the heartbeat estimate?
It is a rough estimate based on an average resting heart rate of 70 beats per minute. Your actual figure will differ based on your personal resting rate, age, and fitness level. Think of it as a ballpark, not a medical measurement.
Getting older by the second. Make it count.