Pomodoro Session Calculator
The Pomodoro technique breaks work into focused intervals (pomodoros) separated by short breaks, with a longer break after every few pomodoros. This calculator takes the number of pomodoros you plan to complete and the length of each interval and returns your total focused time, total break time, and the elapsed clock time from start to finish. All interval lengths default to the classic values but are fully editable, so you can model the variant that suits your work.
Pomodoro session formula
focused = pomodoros * work length
long breaks = floor( pomodoros / cycle )
short breaks = (pomodoros - 1) - long breaks
break time = short breaks * short + long breaks * long
elapsed = focused + break time
Breaks fall between pomodoros, so a session of N pomodoros has N minus 1 breaks. Every completed group of "cycle" pomodoros turns one of those breaks into a long break. The last pomodoro is followed by no break because the session ends on work.
Worked example
For 8 pomodoros of 25 minutes, 5-minute short breaks, 20-minute long breaks, and a long break every 4: focused = 8 * 25 = 200 minutes. Long breaks = floor(8 / 4) = 2. Short breaks = 7 - 2 = 5. Break time = 5 * 5 + 2 * 20 = 65 minutes. Elapsed = 200 + 65 = 265 minutes, about 4.42 hours.
Pomodoro sessions: frequently asked questions
How long is one pomodoro?
In Francesco Cirillo's Pomodoro technique a single pomodoro is 25 minutes of focused work, followed by a short break of 5 minutes. After four pomodoros you take a longer break of 15 to 30 minutes. These are the classic defaults, but the technique allows you to adjust the lengths to suit your work, which is why every interval here is editable.
How many pomodoros are in a working day?
A standard pomodoro plus short break is 30 minutes, so two fit in an hour and roughly 16 fit in an eight-hour day before breaks. After accounting for the longer breaks every fourth pomodoro and other interruptions, many people complete 8 to 12 focused pomodoros in a full day.
How does this calculator handle long breaks?
It counts how many completed groups of pomodoros you finish (by default every 4) and adds one long break for each completed group. Short breaks are added after every pomodoro except where a long break replaces it. The final pomodoro does not add a trailing break, since the session ends on focused work.
What is the difference between focused time and elapsed time?
Focused time is just the pomodoros: the minutes spent actually working. Elapsed time is the wall-clock time from start to finish, including every short and long break. The gap between the two shows how much of your session is rest, which is by design in the technique.
Sources and method
- The Pomodoro technique was developed by Francesco Cirillo; the classic 25/5/20 minute intervals are its defining defaults and are provided here as editable inputs.
- The session arithmetic is straightforward addition and is computed directly by this tool, not estimated.
Reviewed by the CalculatorHub team, edited by James Graham, 19 June 2026. See our methodology.