Memento Mori — Your Life in Weeks
Human life is remarkably short. We have roughly 4,000 weeks. Most of us live as if we have an infinite supply, wasting years on trivialities.
This is your reality check. The gray blocks are your past, gone forever. The empty blocks are all that remain. Use them intentionally.
Your life in weeks, on a single screen
This Memento Mori calculator turns your lifespan into a grid where one block equals one week of life. Filled blocks are the weeks you have already lived; the empty blocks are everything you have left. Seeing all ~4,000 weeks at once makes an abstract idea — that time is finite — suddenly concrete. It is the same "life in weeks" chart popularised by Tim Urban, rebuilt as a fast, private, free tool.
How to calculate how many weeks you have lived
The math is simple: your age in years × 52. At 30 you've lived roughly 1,560 weeks; at 40, about 2,080. Enter your age above and the grid instantly shades every week behind you and counts the weeks remaining against an average life expectancy. Change the expectancy to match your own situation and the chart updates in real time.
Why a weekly life calendar changes how you think
A year feels long; a life in weeks feels alarmingly short. That gap is the point. Memento Mori — Latin for "remember you must die" — is a Stoic practice for cutting through trivialities and spending your remaining weeks on what actually matters. Save your grid as an image and revisit it whenever you need the reminder.
Frequently asked questions
How many weeks are in an average human life?
An average lifespan of 79–84 years is roughly 4,000–4,400 weeks. The exact figure depends on life expectancy, which you can adjust in the calculator.
How do I calculate how many weeks I have lived?
Multiply your age by 52. At 30 years old that's about 1,560 weeks. Enter your age and the tool shades every week you've already lived.
What does Memento Mori mean?
It's Latin for "remember that you must die" — a Stoic reminder to focus on what matters by keeping the finitude of life in view.
Is this life-in-weeks calculator free and private?
Yes — completely free, no signup, and it runs entirely in your browser. Your age is never sent to a server. Explore more free tools.