A gentle memento-mori
Your Life in Heartbeats
Years are too big to feel. A heartbeat isn't — it's happening right now, about once a second. Enter your birthday and watch them.
Stays on your device. Never sent anywhere. These are averages, not a prediction about you.
Your heart has already beaten about — times.
An average heart rate laid over an average lifespan — a reflection, not a forecast. Nothing here knows your number.
Rough lifetime averages, applied to the time you've been alive. Mileage, gloriously, varies.
About This Toy
Your Life in Heartbeats takes the one piece of you that has been quietly keeping time since before you were born — your heart — and lets you watch it count. Enter your birthday and it estimates how many beats you've already spent, ticking on in real time, roughly once a second, the way it's doing in your chest as you read this.
It's a small member of an old family of ideas: memento mori, the practice of keeping the finiteness of time gently in view, not to frighten yourself but to value the time you have. The numbers here are deliberately rough — a textbook heart rate over an adjustable, made-up lifespan — because the exact figure was never the point. The point is the ticking, and what it does to how you feel about the next minute.
How It Works
- Enter your birthday. It's used only to work out how long you've been alive, and never leaves your browser.
- A heart beats about 72 times a minute on average — so the toy multiplies that out across your life so far, and onward.
- Adjust the lifespan slider to whatever you like. It's an assumption, openly, because no one can know the real one.
- Scroll down to see how much of your life the averages say has gone to sleeping, eating, screens, traffic, and being on hold.
Why This Exists
We're bad at feeling time at the scale of years. A decade is just a word; "you have maybe forty summers left" slides off the mind. But a heartbeat is concrete and immediate, and watching a counter of them tick down does something a calendar can't — it makes the abstract fact of a finite life briefly, usefully real.
The hope isn't dread. It's the opposite: the small, clarifying lift you get when you remember that the time is limited and therefore worth something. The next beat is the only one you're truly promised. This is just a nudge to spend it on something you'd choose.
Frequently Asked Questions
What is Your Life in Heartbeats?
A free, reflective toy. You enter your birthday and it shows an estimate of how many times your heart has already beaten, ticking onward in real time — and, if you like, how much of your life has gone to sleeping, eating, commuting, and being on hold.
How are the numbers calculated?
From simple averages: a heart beats roughly 72 times a minute, so about 100,000 times a day and a few billion across a long life. The time-spent figures use well-known daily averages. They're rough estimates, not measurements of you.
Is this predicting when I'll die?
No. Nothing here knows your lifespan, and the toy doesn't claim to. It's a memento-mori — a gentle reminder that time is finite — not a forecast. The remaining figure is just an average laid over an average, meant for reflection, not alarm.
Why heartbeats instead of years?
Because years are too big to feel. A heartbeat is something your body is doing right now, about once a second, and watching them tick makes the passing of time tangible in a way a calendar never quite does.
Do I need to install anything?
No. Your Life in Heartbeats runs entirely in your browser. There is no download, no signup, and no account. Your birthday never leaves your device.
Does it work on mobile?
Yes. It works on any modern mobile browser, including Chrome, Safari, and Firefox. The counter keeps ticking as long as the page is open.
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