How are breaks counted?

Breaks fall between pomodoros, so a run of N pomodoros has N minus one breaks. Every set number of breaks becomes a long break and the rest are short breaks.

What are the default intervals?

The classic Pomodoro Technique uses 25-minute focus blocks, 5-minute short breaks and a longer 15-minute break after every four pomodoros. You can change all of these.

How is the total time calculated?

Total = (pomodoros × focus length) + (short breaks × short length) + (long breaks × long length). Focus time and break time are also shown separately.

Why are there only N − 1 breaks for N pomodoros?

Breaks sit in the gaps between pomodoros, and there is no break needed after the final one, so a run of N focus blocks has N − 1 breaks in total.

How are long breaks decided?

Every set number of pomodoros (4 by default) ends with a long break instead of a short one. The estimator counts which gaps are long and which are short, then prices each.

Can I model my own routine?

Yes. Change the focus length, short and long break lengths, and how many pomodoros come before each long break, to match any variation of the technique you use.

No. The calculation happens entirely in your browser and no data is sent anywhere.

What is the Pomodoro Estimator?

Free Pomodoro estimator — enter how many pomodoros you need plus your focus and break lengths to get total session time including short and long breaks. Runs entirely in your browser; nothing is uploaded. It runs free in your browser on Gera Tools, with nothing uploaded.

Pomodoro Estimator — Gera Tools

Name: Pomodoro Estimator
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

Get one useful tool a week

Like this tool? Enter your email and we'll send you one genuinely useful Gera tool a week — plus a link to come back to this one. No spam, one-click unsubscribe any time.

Pomodoro estimator — plan your real session length

A “pomodoro” is a fixed block of focused work — classically 25 minutes — followed by a short break, with a longer break after every fourth one. Because of those breaks, eight pomodoros take far longer than 8 × 25 minutes on the clock. This estimator adds up your focus time and all the short and long breaks so you can block out a realistic amount of time.

How it works

The tool counts the gaps between pomodoros and decides which are long versus short breaks, then totals the minutes:

gaps         = pomodoros − 1
long breaks  = every (cycle)-th gap   (cycle = 4 by default)
short breaks = the remaining gaps
total = pomodoros × focus
      + short breaks × short length
      + long breaks × long length

Example

8 pomodoros, focus 25 min, short break 5 min, long break 15 min, long break every 4:

Focus: 8 × 25 = 200 min
Gaps: 7 → the 4th gap is a long break, the other 6 are short
Breaks: 6 × 5 + 1 × 15 = 30 + 15 = 45 min
Total: 200 + 45 = 245 min ≈ 4h 5m

Pomodoros	Focus (min)	Breaks (min)	Total
4	100	15	1h 55m
8	200	45	4h 5m
12	300	75	6h 15m

Why calendar blocking matters

The most common planning mistake with the Pomodoro Technique is blocking only the raw focus time. A half-day session of 8 pomodoros at 25-minute focus occupies over 4 hours on the clock once breaks are counted — considerably more than the 3h 20m that “8 × 25 minutes” suggests. Meetings, lunch, and context-switching add further time outside the technique itself.

Use this estimator before you accept or schedule a block of deep work to ensure the calendar slot you claim actually covers the session you intend. For example, if you plan to clear a task that needs exactly 6 focused pomodoros, the estimator (with default settings) tells you to block about 3 hours, not 2.5.

Customising for your own rhythm

The classic 25/5/15 cadence is a starting point, not a law. Many practitioners adjust it over time:

Shorter focus (15–20 min) for tasks requiring frequent context-switching or for warming up after a break.
Longer focus (45–50 min) for deep single-task work such as writing, coding, or detailed analysis.
Longer cycle (6–8 before a long break) suits people who build momentum slowly and prefer to push through before resting.

Change the inputs and the total recalculates instantly, so you can see the calendar impact of any rhythm before committing to it.