Life Expectancy Calculator

Most of us get roughly 4,000 weeks. Life Expectancy Calculator puts that number in your Chrome toolbar. It isn't there to spook you. It's there to sharpen your focus.

Enter your birthday and an expected lifespan, and the popup shows how many weeks (and hours) remain, today's date, and the day the math runs out. Add a few money numbers and things get interesting:

• Each hour is worth: your net worth, spread across every hour you have left.
• Auto Income: what your savings earn each month at a return rate you choose.
• Freedom Aim: the nest egg whose returns would cover your monthly expenses, with a progress bar that shows how close you are.

Make it yours. Set your lifespan, count only waking hours if you like, and pick a return rate that feels honest. Results update as you type. Everything is saved locally in your browser, with no account, no sign-up and no servers.

It's part memento mori and part financial compass: a small, daily nudge to spend your time and your money on what matters.