Each square below is one week of your life. Enter your birthdate and watch the weeks you've already lived fill in — the bright square is the week you're in right now, and everything past it is the time you still have.
A human lifetime is easy to say and hard to feel. "Ninety years" sounds enormous; ninety rows of fifty-two boxes fits on a single screen. That gap — between the number and the picture — is the whole point of a life calendar. When every week you've lived is one small filled square, a decade stops being an abstraction and becomes a block you can put your thumb over.
The math is simple. A year is about 52.18 weeks, so a full life of a given length is roughly that many rows of 52 squares:
| Life length | Total weeks (≈) | Weeks by age 30 | Weeks by age 60 |
|---|---|---|---|
| 70 years | 3,653 | 1,565 | 3,130 |
| 80 years | 4,175 | 1,565 | 3,130 |
| 90 years | 4,696 | 1,565 | 3,130 |
Notice the middle columns don't change: the weeks you've already lived are fixed no matter how long you expect to live. The only thing your chosen life length moves is how much empty grid sits below today — a reminder that the assumption is a rough backdrop, not a prediction.
Years are too coarse — a whole year as one box hides the texture of a life, and you only get a handful of boxes. Days are too fine — 30,000-plus squares turns into visual noise you can't hold in your head. A week is the unit most lives actually run on: it's the rhythm of work and rest, the span you plan and remember in. One week per square is small enough to feel finite and large enough to feel like something happened in it.
An empty life grid is a statistic; a grid with the week you started school, the week you met someone, the week a kid was born, the week you moved cities — that's a biography at a glance. Add a few and the clusters tell you where your life actually happened. Because everything is stored in the page's link, your annotated chart is a single URL you can bookmark, revisit on a birthday, or send to someone who'll instantly see the shape of it.
The default of 90 years is deliberately generous — it's a canvas size, not a forecast, and you can set it to anything. No one knows their number, and the value of the chart doesn't depend on getting it right. What it's good at is making the lived part vivid and the remaining part feel like a resource rather than an infinity. People tend to leave with the same small resolution: spend the squares on purpose.