How many are left?

How many more times will you see your parents? How many weekends are left before your child leaves home? First guess how that time is spread out. Then enter your age and look at it as dots. The grey ones are behind you, the green ones are still ahead.

Your own estimateYour guess first, then the calculation. Nothing is stored or sent.

At each age, how much of all your days with your parents is already behind you?

Drag your finger or mouse from left to right. Across is your age, up is the share of days already gone.

Calculated from your numbersIt works from your age and the average life expectancy in Czechia. That's an average for the whole population, not a prediction for you or your parents. What you enter isn't stored or sent anywhere unless you save your result yourself.

How old are you?

In 2015 the writer Tim Urban worked out, from his own rough estimates, how much time with his parents he had left. By his reckoning, by the end of high school he had already used up 93% of all the days he would ever spend with them. At 34 he saw them about 10 days a year, which left roughly 300 days. Not because his parents were old.

Most of the time we share with our parents is childhood: while you live at home, you see them almost every day.

What's left is small, but you can change it. The number of days left no longer depends on years but on how many days a year you see each other. Add one day to six and what's left grows by a sixth. See each other twice as often and it doubles. You can't get your childhood back, but one decision can change what's left.

Your parents have more years ahead than it seems. People usually count on an “average 80 years”. But someone who has reached an older age has already come through the risks of younger years, so on average they live longer. According to the Czech Statistical Office, a woman who is 65 has on average another 20.8 years ahead, a woman who is 80 another 9.4 years. That's why the app doesn't use a single number but a life table.

With a child it's the other way round. While your child is small, most of your weekends together are still ahead. But every year, 52 of them are gone.

This isn't about feeling sad. It's about one concrete decision: an extra visit, a phone call, a weekend with nothing planned.

How it works

Time with parents: 330 days a year until you leave home (Urban's assumption that he saw his parents on at least 90% of days until 18), then as many days a year as you set. What's left: the parent's average remaining life expectancy by age and sex times days a year. The data are from Czechia (Czech Statistical Office, life tables for 2025); other countries differ somewhat. It's a population average, not a prediction for any one person. The default age for leaving home is 26: 25.8 in Czechia, 26.3 in the EU (Eurostat 2025).

Weekends with your child: 52 a year while your child lives at home. Your own activity: times a year multiplied by the years from–until.

The app picks the dot scale so that there are at most 300 dots. If less than one dot is left, at least one green dot is shown. Nothing is saved or sent; the share card is created right in your browser.