Life Calendar

Visualize a chosen planning horizon in weeks or months.

Your data stays on this deviceGenerated locally, without an account or upload.

UTF-8 TXT or exported settings JSON; at most 1 MiB.

Choose settings, then generate.

Understand the concept

A life calendar represents elapsed and upcoming time with cells. It is a planning and reflection aid. The selected number of years is your chosen horizon and does not predict a lifespan.

What you can do

Choose birth/reference dates, a horizon of 1–120 years, weekly or monthly cells, colors and dimensions. Download the chart and exact date/count report without saving your birth date online.

How to use

Enter a birth date and a reference date, then choose the planning years.
Choose weeks or months and generate. The accent cell marks the next uncompleted period when one remains.
Inspect the result and numeric report. Download SVG for editable vectors, PNG for a fixed image, or JSON to restore these settings later.

Limits and common errors

Weeks are consecutive seven-day periods from birth; a row of 52 cells is not exactly a calendar year. Monthly cells follow calendar months. Future reference dates before birth are rejected; a passed horizon leaves zero remaining cells.

Frequently asked questions

Why are there more than 52 weeks per year?

A calendar year has 365 or 366 days, while 52 weeks have 364. This chart counts actual seven-day periods over the chosen date range; it does not discard the extra days.

Your data stays on this device?

Generated locally, without an account or upload.