What a life in weeks looks like
An 80-year life is about 4,160 weeks. That number is small enough to fit on one screen, which is exactly why this chart lands the way it does. A year feels abstract. A dot does not. When you can see the week you are in, sitting among the weeks you have already spent and the ones still waiting, time stops being a vague fog and becomes something you can point at.
The idea of drawing a whole life as a grid of weeks was popularised by Tim Urban's 2014 essay Your Life in Weeks on Wait But Why, and it has been printed on posters and pinned above desks ever since. This calculator draws your version: 52 dots to a row, one row for every year of the lifespan you choose.
How it's calculated
We count the whole years since your birthday, multiply by 52, and add the full weeks since your last birthday. That's the number of lit dots. The total is your chosen lifespan times 52. The glowing dot is this week. Everything runs in your browser; your birthday is not sent anywhere.
The lifespan is yours to set. We default to 80 because it's a round, hopeful number close to what most people in wealthy countries can expect: in the US, recent CDC estimates of life expectancy at birth sit in the high 70s, and worldwide the UN estimate is a little over 70. Those are averages across millions of people, not a prediction about you. Treat the total as a budget, not a forecast.
Why look at it at all?
It is not that we have a short time to live, but that we waste much of it.Seneca
Seneca wrote that two thousand years ago in On the Shortness of Life, and his point was not that life is short. It was that we spend it as if it were endless, then act surprised. Seeing your weeks laid out does something a calendar can't: it shows that this week is one of a countable number, and that it's the only one you can actually do anything with.
People use the chart in different ways. Some print it and fill a dot every Sunday. Some colour the rows by chapter (school, first job, the year the kids were born) and notice how few rows each chapter really takes. Some just look at the row they are on and ask a smaller, better question: what is this week for?
Grid or spiral?
The classic chart is a grid. We also draw it as a spiral, arranged like the seeds of a sunflower, with the earliest weeks at the centre. It's the same count. The spiral is what our desktop wallpaper uses because it's calmer to live with, but switch between them and keep whichever one makes you pay attention.
Keep it where you'll see it
A chart you look at once is a nice moment. A chart you see every time you look up from your work is a habit. That's why we made Days Unspent: your weeks, the days you have left to spend, and the one thing you're spending them on, as a live wallpaper behind your desktop icons. The number on this page is free. If you'd like it in view every day, the wallpaper is $29, once.