Life in Weeks Calendar: Free Online Life Chart & Poster Maker
See your whole life as a grid of weeks, months, years or the days of this year. Enter your birthday to count weeks lived and weeks left, colour your life eras, pin past milestones and future goals, work out where your time goes, and download a poster or phone wallpaper. Fast, private, no signup.
Using this tool in an article, lesson or report? Copy a ready-made link or citation.
HTML link
<a href="https://www.toolnova.org/productivity/life-in-weeks-calendar">Life in Weeks Calendar</a> by ToolNova
APA
ToolNova. (2026, October 4). Life in Weeks Calendar [Online tool]. https://www.toolnova.org/productivity/life-in-weeks-calendar
MLA
“Life in Weeks Calendar.” ToolNova, 4 Oct. 2026, www.toolnova.org/productivity/life-in-weeks-calendar.
What is a Life in Weeks calendar?
Life in Weeks turns your life into one grid where every box is a week, a month or a year, filled in up to today with the future left open. Enter your date of birth to see your exact age, weeks lived, weeks left and your next birthday countdown. Colour-code life eras, pin milestones and goals (or click any box to drop one on that date), see how many summers, weekends and full moons remain, and estimate how many years of your remaining life go to sleep, work and screens. Export a print-ready poster, phone wallpaper or desktop wallpaper, copy a share link, or add your milestones to your calendar. It runs entirely in your browser, so your birthday never leaves your device.
A Life in Weeks calendar (also called a life calendar or weeks-of-your-life chart) shows an entire life as a grid of small boxes, one for every week. A 90-year life is roughly 4,680 weekly boxes, 52 per row and one row per year of age. Boxes for the weeks you have already lived are filled in, the current week is highlighted, and the remaining weeks stay open. Writer Tim Urban popularised the idea in his 'Your Life in Weeks' post on Wait But Why, and Oliver Burkeman's book 'Four Thousand Weeks' made the same point about time management: a life is finite and measurable. This tool makes the chart interactive, so you can enter your own birthday, change the life expectancy, and see exactly where you stand.
Features
Four views: weeks (52 per row), months, years and the 365 days of your current life-year
Birthday-aligned grid: every row starts on your birthday, so weeks lived are exact, not approximated
Fast single-canvas rendering: smooth hover, zoom and theme changes even on a phone
Click or tap any box to inspect its dates and pin a milestone or goal to that exact week
Past milestones and future goals, colour-coded, with 'in 2.3 years' countdowns
Colour the grid by life eras, decades or seasons, with era presets and an optional faded future preview
Exact age in years, months and days plus a live countdown to your next birthday
Life in numbers: days lived, sleeps, weekends, summers, birthdays, Christmases and full moons left
Time budget: how many years of your remaining life go to sleep, work, commuting and screens
'How many times, really?' counters for books, holidays, family visits and anything you love
Retirement line on the grid plus working days remaining
Four grid themes (light, dark, paper, blueprint), three cell shapes and six accent colours
Share link that restores your full setup; autosaves locally; 38 country life-expectancy presets
100% private: no signup, no upload, works offline once loaded
How to use Life in Weeks Calendar
1
Enter your date of birth
Open the Setup tab and pick your birthday. The grid fills in every week you have lived, highlights this week, and shows your exact age and the days until your next birthday.
2
Choose a life expectancy and retirement age
Drag the slider (default 90 years) or pick a country average. Each row of the grid is one year of that life: 52 weekly boxes, 12 monthly boxes or 10 yearly boxes.
3
Switch the view
Use Weeks for the classic chart, Months or Years for a gentler zoom-out, or 'This year' to see the individual days of your current life-year laid out like a calendar.
4
Colour your life eras
In the Eras tab, start from a preset (Classic, School to work, Decades) or define your own age ranges, so childhood, study, career and retirement each get their own colour.
5
Pin milestones and goals
Add events from the Goals tab, or tap any box on the grid and pin a milestone to that exact week. Future dates become goals with a countdown.
6
Work out where your time goes
Scroll to the time budget and set hours per day for sleep, work, screens and more to see how many years of your remaining life each one will take. Add 'how many times' counters for things you love.
7
Export, print or share
In the Export tab choose a poster, phone wallpaper, desktop wallpaper or square size and download a PNG, copy the image, print it, save a JSON backup, add milestones to your calendar as .ics, or copy a share link.
Common use cases
A weekly reminder of how you spend your limited time
A printable Life in Weeks poster for your wall, desk or journal
A memento mori phone or desktop wallpaper
Mapping life chapters and goals in coaching, therapy or journaling
A new-year or birthday reset: see this year's days and what you want to pin on them
Planning retirement and seeing how many working days remain
Teaching perspective on time to students, teams or kids
Gifting a personalised life calendar for a milestone birthday
Detailed guide
How many weeks are in a life?
Multiply your life expectancy by 52 for the number of boxes on the chart, or by 52.18 for the exact number of 7-day weeks (a year has 365.25 days). The grid here is aligned to your birthday: each row starts on your birthday and the last box of each row absorbs the extra one or two days, so the number of weeks lived never drifts away from reality. The table below shows both numbers for common life expectancies.
Life expectancy
Boxes on the grid (52/year)
Actual 7-day weeks
Months
60 years
3,120
3,131
720
70 years
3,640
3,652
840
75 years
3,900
3,913
900
80 years
4,160
4,174
960
85 years
4,420
4,435
1,020
90 years
4,680
4,696
1,080
95 years
4,940
4,957
1,140
100 years
5,200
5,218
1,200
Four ways to look at your life
Different zoom levels answer different questions. The weeks view is the classic chart and the best poster. The months view shrinks a life to 1,080 boxes for a calmer picture. The years view shows a life as nine or ten rows of ten, ideal for a quick sense of scale. 'This year' lays out the 365 days of your current life-year like a contribution calendar, from one birthday to the next, so you can plan what to pin on the near future.
View
One box is
Boxes for a 90-year life
Best for
Weeks
One week
4,680
The classic chart, posters, wallpapers
Months
One month
1,080
A calmer, less crowded overview
Years
One year
90
Quick perspective and presentations
This year
One day
365 or 366
Planning the year between two birthdays
Colour-code eras, pin milestones, plan goals
A life is chapters, not one block. Colour the grid by eras you define (childhood, school, university, career, retirement), by decades, or by season of birth. Pin milestones such as graduations, moves, weddings and first jobs, and add future goals the same way: any date inside your expected life gets a coloured ring and a countdown. Tap a box on the grid to see its dates and pin something to that exact week. You can also preview your future eras in a faded tint to see how long each chapter is likely to run, and a dashed retirement line shows how much of the grid sits before and after it.
Your life in numbers, and where your time goes
Beyond the grid, the calendar turns your birthday into numbers you can feel: days and hours lived, sleeps, weekends, summers, birthdays, Christmases and full moons remaining, and working days left until retirement. The time budget goes one step further. Set how many hours a day you sleep, work, commute or spend on screens and see how many years of your remaining life each habit will take (workday items only count Monday to Friday until retirement). The 'how many times, really?' counters answer questions like how many more books you will read or how many times you will see your parents at your current pace. All of it is a deterministic estimate from your own inputs, meant for perspective rather than prediction.
Posters, wallpapers and sharing
Download a crisp PNG sized for an A4 poster (2480 x 3508 px), a phone wallpaper (1170 x 2532 px), a desktop wallpaper (2560 x 1440 px) or a square social image. Exports use your theme (light, dark, paper or blueprint), shape, eras and milestones, and carry your name as the title. You can also print straight from the browser, copy the image to the clipboard, save a JSON backup to restore later, export milestones as an .ics file for Google Calendar, Apple Calendar or Outlook, or copy a share link that restores your whole setup. Your birthday stays on your device unless you choose to share the link.
Fast, private and works on any device
The whole grid is drawn on a single canvas rather than thousands of page elements, so hovering, zooming and switching themes stay smooth on phones and older laptops. Cell size auto-fits to your screen, there are keyboard controls on the grid (arrow keys to move, Esc to clear), and nothing is uploaded: your birthday, eras and milestones are saved only in your browser's local storage.
Frequently asked questions
What is the Life in Weeks calendar?
It is a grid where every box is one week of your life, 52 per row and one row per year, from birth to your chosen life expectancy. Weeks you have lived are filled in and this week is highlighted, giving a visual sense of how much time you have used and how much is left.
How many weeks are in a life?
A 90-year life has about 4,680 boxes on the chart (90 x 52) and 4,696 actual 7-day weeks (90 x 52.18). An 80-year life is 4,160 boxes or about 4,174 weeks. Slide the life expectancy from 40 to 120 years and the grid and stats update instantly.
How many weeks have I lived?
Enter your date of birth and the calendar counts the exact number of 7-day weeks you have lived, plus your exact age in years, months and days, days lived, hours lived and percentage of your chosen life expectancy.
How many weeks are in a year?
A year has 52 weeks plus one or two extra days (365.25 days / 7 = 52.18 weeks). The grid here starts every row on your birthday and lets the last box of the row cover the extra days, so rows always match your real age.
How many weeks are in 80 years?
80 years is 4,160 boxes on the chart (80 x 52), or roughly 4,174 actual weeks counting the 52.18 weeks in a real year.
Is this based on Tim Urban's 'Your Life in Weeks'?
It is inspired by that well-known Wait But Why chart, made interactive: enter your own birthday, colour your eras, pin milestones and goals, and export the result as a poster or wallpaper.
Can I switch between weeks, months and years?
Yes. Weeks is the classic chart, Months shows a 90-year life as 1,080 boxes, Years shows it as 90 boxes in rows of ten, and 'This year' shows the 365 days between your last and next birthday like a calendar.
Can I add milestones and future goals?
Yes. Add them in the Goals tab or tap any box on the grid and pin a milestone to that exact date. Past events and future goals both get a coloured ring on the grid, and each shows how long ago it was or how long until it arrives.
Can I colour-code different periods of my life?
Yes. Define eras by age range, such as childhood, university, career and retirement, or start from a preset. You can also colour the grid by decade or by season, and preview future eras in a faded tint.
Can I download it as a wallpaper or poster?
Yes. Export a PNG as an A4 poster, phone wallpaper, desktop wallpaper or square image, in a light, dark, paper or blueprint theme. You can also print directly or copy the image to your clipboard.
How do I add my milestones to Google Calendar or Apple Calendar?
In the Export tab choose .ics. It creates a calendar file with each milestone as an all-day event plus a yearly birthday event, which you can import into Google Calendar, Apple Calendar or Outlook.
How many summers or weekends do I have left?
The life-in-numbers panel estimates the weekends, summers, birthdays, Christmases and full moons remaining from your birthday and life expectancy, plus the working days left until your retirement age. They are estimates for perspective, not predictions.
How does the time budget work?
Enter hours per day for activities like sleep, work, commuting and screens. The tool multiplies by the days you have left (workday items count only Monday to Friday until retirement) and shows how many years, months or days of your remaining life each one will take.
Which life expectancy should I use?
Pick a country average from the dropdown (rounded UN and World Bank figures, for reference only) or drag the slider anywhere from 40 to 120. Many people choose 90 so the chart shows a long life and any extra years feel like a bonus.
Does it save my calendar automatically?
Yes. Your birthday, eras, milestones and settings are autosaved in your browser's local storage so everything is exactly as you left it. You can also save a JSON backup and restore it on another device.
Can I share my Life in Weeks calendar?
Yes. Share link copies a URL that restores your birthday, life expectancy, eras, milestones and style. Because that information is in the link, only send it to people you are comfortable sharing your birthday with.
Is my personal data kept private?
Yes. Everything runs in your browser. Your birthday, eras and milestones are never uploaded to a server, and the page works without an account.
Why is the grid fast on my phone?
The grid is drawn on a single canvas instead of thousands of separate page elements, so hovering, zooming and switching views stay smooth even with more than 4,000 boxes.
What does memento mori have to do with this?
Memento mori means 'remember you must die', an old idea for using the awareness of limited time to live more intentionally. Seeing your life as a finite grid of weeks is a modern, visual version of it.
Is it free?
Yes. It is completely free with no signup and no limits.
