Enter the hours you actually have and get the number of focus blocks, the real focus time inside them, and the break time they cost.
With the classic settings — 25 minutes of focus, a 5-minute break, and a 15-minute long break after every fourth block — a full eight-hour day holds 15 Pomodoros. That is 6 h 15 min of actual focused work and 1 h 40 min of breaks.
That number is the ceiling, not a target. It assumes eight uninterrupted hours, which almost nobody has. Enter the hours you genuinely control below and the calculator does the arithmetic for your own setup.
Classic settings: 25-minute blocks, 5-minute breaks, a 15-minute long break after every fourth.
| You have | Pomodoros | Real focus | Breaks |
|---|---|---|---|
| 1 h | 2 | 50 min | 5 min |
| 2 h | 4 | 1 h 40 min | 15 min |
| 3 h | 5 | 2 h 5 min | 30 min |
| 4 h | 7 | 2 h 55 min | 40 min |
| 5 h | 9 | 3 h 45 min | 1 h |
| 6 h | 11 | 4 h 35 min | 1 h 10 min |
| 7 h | 13 | 5 h 25 min | 1 h 30 min |
| 8 h | 15 | 6 h 15 min | 1 h 40 min |
Each Pomodoro costs its focus time plus the break that follows it — except the last one. The break after your final block falls outside the workday, so counting it would cost you a block you actually have time for. The calculator only charges you for breaks that sit between two blocks.
Long breaks are placed after every fourth block, which is where the original technique puts them. Change that number and the totals shift: longer cycles between long breaks fit slightly more focus into the same window, at the cost of recovery.
Fifteen Pomodoros a day is a theoretical ceiling that assumes no meetings, no email, no interruptions and no drop in concentration after lunch. In practice, most people who track their focus honestly land somewhere between four and ten blocks on a good day.
That is not a failure. Four protected, genuinely focused blocks beat eight half-present ones, and the number you can sustain every day matters far more than the number you can hit once.
Use it to plan backwards instead of forwards. If a task needs roughly three Pomodoros and your afternoon only holds four, you know before you start whether the day is realistic — which is usually the information missing when a plan quietly collapses at 4 p.m.
It also makes the cost of an interruption visible. One unplanned meeting does not cost you 30 minutes, it costs you the block it lands in plus the time your attention needs to settle back into the work afterwards.
Fifteen, using 25-minute blocks with 5-minute breaks and a 15-minute long break after every fourth. That works out to 6 h 15 min of focus time and 1 h 40 min of breaks.
Seven — 2 h 55 min of focus and 40 minutes of breaks. A half day holds almost half of what a full day does, because the long breaks have not stacked up yet.
Most people sustain four to ten. Start by counting the blocks you complete on a normal day rather than setting a target, then add one. A number you hit every day is worth more than a record you hit once.
In this calculator, yes — breaks between blocks are taken out of the window you entered. Only the break after your last block is ignored, since it falls outside the time you were planning.