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Life in Weeks Calculator

See a chosen lifespan as a grid of weeks: weeks lived, weeks remaining, and the share of that planning horizon already filled.

years
Examples

A sample life grid; enter your own date to personalize it.

Grid filled
40.2%
Weeks lived
1,883
Weeks remaining
2,797
Years lived
36

Past the first quarter of the chosen grid, with many weeks still open.

Life expectancy here is a user-chosen planning assumption, not a prediction.

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Examples

How It Works

Formula

weeksLived=⌊days lived7⌋\text{weeksLived} = \left\lfloor \frac{\text{days lived}}{7} \right\rfloor

percentLived=weeksLivedlifeExpectancy×52×100\text{percentLived} = \frac{\text{weeksLived}}{\text{lifeExpectancy} \times 52} \times 100

Variables

days lived\text{days lived}

Whole days between the birth date and today

lifeExpectancy\text{lifeExpectancy}

The lifespan in years chosen as the planning horizon

The grid contains 52 squares for each year in the chosen planning lifespan. Whole days since the birth date are converted to completed weeks, then those squares are filled. The highlighted square marks the current week in the grid.

Frequently Asked Questions

01Is this predicting lifespan?
No. The lifespan is a number you choose for planning and reflection; it is not a prediction about any person.
02How is a week counted?
The calculator counts whole days from the birth date to today, divides by seven, and fills one square per completed week.
03Is the birth date stored?
No. The calculation runs in your browser and does not save the date.

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