Life in Weeks
WEBVisualize your life in weeks with a grid showing weeks lived vs remaining based on your birth date and life expectancy.
Pick your date of birth
Set a date of birth above to see your life mapped out, one week at a time.
What is the Life in Weeks tool?
This life-in-weeks calculator turns your lifespan into a single grid you can actually see: one small square for every week you are expected to live, with each row spanning a full year. Enter your date of birth and a life-expectancy figure (80 years by default, adjustable from 1 to 120), and the grid fills in — every week already lived shows as a solid, coloured square, and every week still ahead shows as a faint outline. It is the same 'memento mori' idea popularised as Your Life in Weeks: a visceral, honest way to see how much of the calendar has already been used, rather than an abstract age in years.
Above the grid, a headline stats row spells out the same picture in numbers: how many weeks you have lived, how many are estimated to remain, and what percentage of your expected life has elapsed so far. Because the whole grid is built from simple week-by-week math, it updates instantly the moment you change your birth date or adjust the life-expectancy stepper, so you can compare scenarios — what a 75-year versus a 90-year expectancy looks like — in seconds.
The grid itself is designed to be shared: tap the share button and the tool captures the whole visualization as an image you can save or send, whether that is for a personal reflection, a talk on time management, or just to share the 'whoa' moment with a friend. Everything runs locally in your browser — your birth date is never sent anywhere or stored, and the tool works without an account or sign-up.
How to use the Life in Weeks
- Pick your date of birth using the date field.
- Adjust the life-expectancy stepper if you want a figure other than the 80-year default.
- Read the headline stats: weeks lived, weeks remaining, and percent of life elapsed.
- Scan the grid — each filled square is a week you have already lived, each outlined square is a week still ahead.
- Tap share to save or send the grid as an image.
Frequently asked questions
How is 'weeks lived' calculated?
The tool counts the whole number of 7-day weeks between your date of birth and today. It never shows more weeks lived than the total implied by your life-expectancy setting, and never fewer than zero — so an unusual input still produces a sensible grid.
Why 80 years as the default life expectancy?
80 years is a common, round reference figure used in life-in-weeks visualizations, giving a 4,160-square grid. It's just a starting point — use the stepper to set any figure from 1 to 120 years that fits how you want to think about it.
Is this meant to predict how long I'll actually live?
No. It's a visualization exercise based on whatever life-expectancy number you choose, not a medical or actuarial prediction. Think of it as a perspective tool on how time is spent, not a forecast.
Can I share my grid as an image?
Yes. The share button captures the grid card exactly as shown and lets you save it or share it directly through your device's share options, alongside a text summary of your weeks lived and remaining.
Does the tool store or send my birth date anywhere?
No. Everything is calculated in your browser. Your date of birth is never transmitted or saved — it resets if you reload the page, so you can revisit it privately any time you like.