🗓️ Lifespan Lab

Your Life in Weeks

Each box is one week. Enter your birthday to fill in the weeks you have already lived.

Why look at your life in weeks?

A 90-year life is only about 4,700 weeks. Seeing them all on a single page makes time feel concrete: the summers you have left, the books you could still read, the visits with people you love. Many people use the grid as a calm reminder to spend the next week on what matters.

How it works

Each row is one year of 52 weeks. Filled boxes are weeks you have already lived, the highlighted box is this week. Your birthday stays on your device and is never sent anywhere.

FAQ

How many weeks are in a 90-year life?

About 4,680 weeks (90 × 52), or roughly 4,696 if you count leap days.

Is my birthday stored?

Only in your browser's local storage, so the page remembers it next time. It never leaves your device.