A week has 168 hours in it, which is 24 times 7 and does not change depending on how you feel about Tuesday. This tool takes the four things that eat most of them – sleep, fixed commitments, study, activities – and draws the week as seven bars so you can see what is left before you promise anything else to anybody.
It is for the planning week rather than the fantasy one. Put in the shift you really work, the lectures you actually attend and the study hours you would defend in front of someone, and the free time at the end is the number you can plan with. Most people find it smaller than the figure in their head.
One honest detail first: every field is a per-day number, repeated across all seven days. It is a shape of a day, multiplied into a shape of a week.
Plan all 168 hours of your week. Add your fixed commitments, sleep, study, and activities to see a visual grid of where your time goes.
How it works
Four numbers. Sleep hours, study hours, fixed hours (classes, shifts, commuting, appointments) and activity hours (gym, practice, training). Leave sleep blank and it counts as 8. Leave the rest blank and it counts as zero, which is the safe default, because an unentered commitment is one you have not admitted to yet.
Press Calculate and you get a row for each day from Monday to Sunday. Inside each row is a stacked bar, and each segment’s width is that many hours out of 24, so eight hours of sleep is a third of the bar. The legend underneath repeats the totals – sleep, study, fixed, activity and free in grey – and free time is whatever the four fields leave behind.
Two warnings exist and they are the useful part. Add more than 24 hours in a day and it tells you by how much: “Your commitments exceed 24 hours by 1.0 hours. Reduce something.” Stay under 24 but land below two free hours and it says so, rather than quietly letting you plan a week with no slack in it. That one fires first, because 23 hours of commitments is legal and still a terrible week.
A worked example
Sleep 8, study 3, fixed 2, activity 1. That is 14 hours of your 24, leaving 10 hours free every day. The bar comes out at 33.3% sleep, 12.5% study, 8.3% fixed, 4.2% activity, and 41.7% free. Across the full week that is 70 free hours, which sounds enormous until you remember it has to hold meals, laundry, travel, seeing anyone, and the two hours the plan did not know about.
Now the realistic version. Sleep 7, study 5, fixed 6, activity 2. Total 20, free 4 hours – 16.7% of the day. Six fixed hours is a day with three classes and a shift, and four free hours is why that week feels long even when nothing goes wrong.
Push it further: sleep 8, study 6, fixed 6, activity 4 comes to exactly 24, so free time is 0 hours and the under-two-hours warning appears. Add one more hour and the total hits 25, free goes negative, and the tool reports that you are over by 1.0 hour instead of drawing a grey segment at minus four percent. The maths does not break. Your week does.
What the grid does not know
It assumes your Saturday matches your Monday. The seven bars are identical because the inputs are daily averages, and a real week has a 9am lab that eats a whole morning and a Sunday that is mostly sleep. Use it to check whether the totals fit, not to schedule individual hours.
It also does not separate weekdays from weekends, so eight hours of study means 56 a week rather than the 20 you were picturing. Study Monday to Friday only and enter four hours a day. The tool multiplies, it does not interpret.
And nothing is saved. Close the tab and the numbers are gone, which is fine for a page whose job is to make you uncomfortable for ninety seconds before you decide what to cut.
Other tools
- Assignment Backward Planner — start from the deadline and walk back to today
- Break Planner — where the free hours actually go
- Chapter Day Planner — a reading week, day by day
Frequently asked questions
Are these weekly or daily hours?
Daily. Sleep 8 means eight hours every night, 56 across the week; study 3 means 21. Think in weekly totals and divide by seven before you type, because there is no weekly mode and pretending otherwise is how people end up with a plan twice the size of their week.
How much free time should I aim for?
More than the warning line of two hours, and honestly more than four. Free time covers everything unscheduled, including eating and getting across campus, so four free hours a day is already tight. The number to watch is whether one bad day destroys the plan.
What counts as a fixed commitment?
Anything with a time attached that you did not choose this week: classes, shifts, commuting, placements, appointments. Activities are the ones you chose and can drop, so they get their own colour and are the first thing to shrink when the total goes over 24.
Why does it warn me below two free hours?
Because a week with under two hours a day of unassigned time is not a plan, it is a countdown. Nothing fits when a bus is late or a lab runs over, and the warning is there so you find that out on the page, not on the Thursday.
Does it save my week?
No. No account, no storage, nothing to come back to tomorrow. Type the numbers, look at the bars, change one thing and look again. If you want the result to survive, write the totals down.