Life Clock — See Your Life in Time

The life clock turns your age into perspective. Enter your birthday and an estimated life expectancy, and it shows the percentage of your life you've lived, how many days you've been alive, and roughly how many weeks remain. It's a gentle memento mori — a reminder that time is finite and worth using well.

A perspective tool, not a prediction

Nobody can know their lifespan; the number here is only a planning estimate you choose. The point isn't the exact figure but the shift in perspective — seeing your life as a filling bar tends to make the present feel more valuable. Adjust the expectancy to whatever feels realistic for you. Want just your exact age? Use the age calculator.

Where 'life in weeks' comes from

Visualising a life as a grid of weeks was popularised by writer Tim Urban's 'Your Life in Weeks'. The idea: an 80-year life is only about 4,000 weeks, which sounds startlingly finite — and that's rather the point. This clock shows the same maths as a live percentage and countdown.

Guides about Life Clock

Life in weeks The Four Thousand Weeks Idea Explained, and Why It Frees You The four thousand weeks idea explained, showing why framing a human life as roughly 4,000 weeks, as Oliver Burkeman does, is liberating rather than grim and how to use it. 6 min read Life expectancy explained How Life Expectancy Is Calculated: A Plain-English Guide A plain-English explanation of how life expectancy is calculated, covering life tables, why the figure is an average, and why it is a planning estimate rather than a personal forecast. 6 min read Making time count Making the Most of Your Remaining Time: A Practical Guide Gentle, practical ways to make the most of your remaining time, using a sense of finite time to focus on the people, work, and habits that genuinely matter to you. 6 min read Life expectancy explained Period vs Cohort Life Expectancy: What the Difference Means A simple explanation of period vs cohort life expectancy, two ways of measuring average lifespan, why they differ, and why both are planning estimates rather than personal forecasts. 5 min read Memento mori & time What Is a Life Clock and How Does It Help You See Time? A friendly explanation of what a life clock is, how it visualises the time you have lived and have left, why it helps focus, and how to use it responsibly. 5 min read Memento mori & time What Memento Mori Really Means: A Calm Guide to the Idea A calm, non-morbid guide to what memento mori really means, tracing the idea from the Stoics to today and showing how a reminder of finite time can sharpen focus. 6 min read

More lifetime-clock pages

Age Calculator Find your exact age in years, months, days — and total days and hours lived. Online Clock The current time and date — a reminder that the clock is always ticking.

Frequently asked questions

How does it calculate this?

It compares your age to the life expectancy you enter: percentage lived, total days alive, and remaining days/weeks up to that expectancy. It's an estimate, not a prediction.

Is this morbid?

It's meant as a positive nudge — a memento-mori tool that makes the present feel more valuable, not a doom clock. Set whatever expectancy feels right.

Is my birthday stored?

No — the calculation happens entirely in your browser and nothing is uploaded or saved.

What life expectancy should I use?

Any figure you like. Global average is around 73; many people use 80–90 for planning. It only changes the scale, not the idea.