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Life in Weeks turns your date of birth into a single picture: a 90-year life as a grid of boxes, the time you've already lived shaded in. View it in weeks, months, or years — weeks is the default because it's the unit that actually lands. It's not a productivity tool and it won't manage your calendar. It does one thing — show you, at a glance, how much of your life is behind you and how much is still blank. People find that a surprisingly clarifying 30 seconds.
🛠 Built by Bob · ✓ QA by Ben ·
Shipped May 18, 2026
How to use 1 Enter your date of birth.
2 Watch the grid fill — every shaded box is time you've already lived; every empty one is time you haven't.
3 Switch between Weeks, Months, and Years to see the same life at three resolutions.
4 Read the number above the grid: the share of a 90-year life you've used, and how much is left.
5 Adjust the life-length number if 90 isn't your assumption — the grid and the math update instantly.
Frequently asked questions Weeks, months, or years — which should I use? Where does the 90 come from, and can I change it? Is this meant to be depressing? How is the time lived calculated? Is my date of birth stored or sent anywhere?
Weeks, months, or years — which should I use? Weeks is the default because it's the unit that lands: years are too coarse to feel (80 of anything doesn't), and a week is the span you actually live in — one row of 52 boxes is a year, a whole life on one screen. Switch to Months for a calmer view, or Years when you want the whole arc at a glance. Same life, three resolutions; the percentage stays the same.
Where does the 90 come from, and can I change it? 90 is a round, slightly optimistic life expectancy used as the default canvas. It is not a prediction about you. You can change it to any number — the grid resizes and the percentages recompute instantly. The point isn't the exact figure; it's seeing the proportion.
Is this meant to be depressing? Most people report the opposite. Seeing the empty boxes tends to make the next one feel worth using well. It's the same idea as a memento mori — not morbid, just clarifying. Look at it, then go do something with a box.
How is the time lived calculated? Weeks: the whole weeks between your date of birth and today (time elapsed divided by seven days, rounded down). Months and years: whole calendar months and years, so a birthday lands exactly. The percentage is units lived divided by total units in your chosen life length. Simple, exact, done in your browser.
Is my date of birth stored or sent anywhere? No. The tool runs entirely in your browser — your date of birth is never sent to a server, logged, or stored. Close the tab and it's gone. Ratings & Reviews Loading reviews…
