Time Allocation Calculator

What this tool does

Plans fail on arithmetic more often than on willpower. Four ambitions, each needing a serious evening, do not fit into a week that has two evenings free — and nobody notices until the fourth week. This page makes the sum explicit: say how many hours you really have, list what you want to spend them on with a weight each, and it hands the hours out in proportion. If it does not fit, it says so, which is the useful part.

Formula

hours for each task = available hours × task weight ÷ Σ weights

Variables

Symbol	Meaning	Unit
`available`	Hours you have	h
`items`	What to spend them on, with a weight	—
`minimum`	Least each one may get	h
`OUT`	How the hours divide	—
`BG`	Gets the most	—
`BH`	And that is	h
`AL`	Hours handed out	h
`LF`	Hours left over	h
`AV`	Average per task	h
`FT`	It all fits in the time you have	—

Worked example

Hours you have20 h
What to spend them on, with a weightStudy = 3 Exercise = 1 Side project = 2 Reading = 1
Least each one may get0 h

How the hours divideStudy 8h34 43% Exercise 2h51 14% Side project 5h43 29% Reading 2h51 14%
Gets the mostStudy
And that is8.57 h
Hours handed out20.00 h
Hours left over0.00 h
Average per task5.00 h
It all fits in the time you haveYes

Limitations

The calculation runs entirely in your browser. The values you type are never sent to a server.

Frequently asked questions

What does the minimum do?

It stops a low-weight item from being allocated fifteen minutes, which is the same as not doing it. Set a floor of two hours and anything that would fall below it is raised to two. The honest consequence is that the total can then exceed the hours you have, and when it does the page says so instead of quietly rebalancing: the arithmetic is telling you that you have promised more than the week holds.

Results