Wastime
Make “not now” visible
Estimate how much time you may still share with a person you love or a pet.
Leftover Calculator takes a simple habit like “we talk one to two hours a week” and turns it into a clearer scale of the total hours and days you may still have together.
It shows what your current routines are already adding up to, and leaves you to decide what's worth protecting.
- Estimate shared time with loved ones or pets
- Built on the routine you actually have
- See the total shared time in hours and days
- Offline-first and private by default
Why this calculator exists
We usually act as if closeness has no limit. There's always “later” for one more call, one more visit.
And then the ordinary days do their work. The better moment keeps moving to a week that never quite arrives, and nobody ever decides that it should.
- Shared hours are finite in a way that closeness never feels.
- Once a month sounds like plenty until you multiply it by the years that are actually left.
- Seeing the estimate once is often enough for the trade-offs to stop being abstract.
A mirror you can put down
Leftover Calculator doesn't follow you around with reminders. It gives you one plain look, in one short moment, whenever you decide to open it.
If it feels heavy, you can close it. It will be here on the day clarity is what you actually want.
What Leftover Calculator does in plain words
Pick one person or pet, enter a realistic range, and see the shared scale in hours and days.
Pick who matters
Choose one person or one pet, and name them if you want to.
- Person or pet
- Optional name, just for you
Enter realistic time together
Choose the period you think in, then give it an honest low and high.
- Period: day / week / month / year
- Time together: Min and Max
See the full scale
A total MIN / MAX / AVG estimate, with a few words on what it means.
- Total shared time left
- Shown in hours and days
What the calculation uses
- Your default life expectancy baseline from the Life Expectancy module
- Expected lifespan for the other person or pet
- Your own min/max range for time together
Where the shared horizon gets its limit
- Shared horizon ends at the earlier limit (yours or theirs).
- Your input is scaled across that shared horizon.
- The calculation is gross, so sleep and work are never subtracted automatically.
A range says more than one number
Real life is inconsistent. Some weeks you talk every day, some weeks you disappear into work, and a MIN / MAX range leaves room for both.
- Minimum: what still happens even in busy periods
- Maximum: what's possible when life is calmer
- Average: a grounded middle between the two
What it is for and not for
It's for
- Seeing relationships as a real resource you actually spend
- Noticing the gap between caring about someone and showing up for them
- Making one small trade-off, like keeping a weekend free
It's not for
- Fear-based motivation
- Measuring love as a performance metric
- Turning people into productivity targets
Private by default
What you enter here is nobody else’s business, and the app is built that way.
- Works fully offline by default
- Inputs remain on your device
- Sync is optional and only used if you enable it
How to start in 1 minute
- 1Select a default result in Life Expectancy.
- 2Pick one person or pet.
- 3Enter a rough min/max range for a week or month.
- 4Look at the scale first, then decide if you want to change anything.
Some things, sometimes
A few ordinary situations, and none of them have to be yours.
Parents you “see sometimes”
When visits are rare, the total adds up to far less than it feels like from the inside. What you do with that number is entirely yours.
A long-distance friend
Even a short weekly call adds up once you see it as accumulated life across the years.
Your pet
A pet lives a shorter life than yours, so the ordinary days together are most of what you get.
A relationship you want to protect
Much of being close is unremarkable time, and seeing how much of it is left can help you make room for the moments you actually want.
FAQ
Short answers before you run a first estimate.
Pick one moment worth keeping
Open Leftover Calculator, look at the scale, and pick one moment worth keeping. One is enough.
