Why doesn't changing the break length change my total?

Because the total measures focus time only, and breaks are not focus. Break length matters for how long the block occupies your day — multiply session plus break by the session count to get that — but it cannot change how many minutes you spent working.

How many sessions should I plan?

Fewer than you want to. Most people can sustain three to five strong sessions before quality drops sharply, so a plan of eight is better read as an upper bound for an exceptional day than as a daily target.

Focus Session Calculator

Calculate focus time during the day.

Total Focus Time:200 min

In Hours:3.3 h

Guide to Pomodoro Technique

What is the Pomodoro technique?

The Pomodoro technique is a time management method created by Francesco Cirillo in the late 1980s. The name comes from a kitchen timer shaped like a tomato. It involves working in short, focused periods (typically 25 minutes), separated by short breaks (5 minutes). After four cycles, take a longer break (15-30 minutes).

Why does it work?

Short work periods leverage the brain's natural ability to maintain focus. They also create a sense of urgency that motivates action. Breaks allow the brain to process information and prevent burnout. Regular breaks improve overall productivity much more than long uninterrupted sessions.

How to start?

Choose one task to work on. Set the timer for 25 minutes. Work intensely until the timer goes off. Take a 5-minute break. After four "pomodoros", take a longer 15-30 minute break. At first, you can extend work time to 45-50 minutes and shorten breaks if 25 minutes is too short for your tasks.

Deep work and concentration

To maximize focus time, eliminate all distractions: close unnecessary browser tabs, turn off phone notifications, inform others you're working. During the session, don't check email or solve problems. If thoughts arise, write them down and return to the task later.

Eight pomodoros is 3.3 hours of focus but four hours of your day

This counts focus, not elapsed time. Eight twenty-five-minute sessions give 200 minutes at the task — 3.3 hours. Add the five-minute breaks that make the method work and you have occupied 240 minutes, a full four hours. The forty-minute difference is the part people forget when they slot a focus block into a calendar.

How it works

Multiplies your session length by the number of sessions you plan.
Reports the total as minutes and as hours of actual focused work.
Deliberately excludes breaks from that total, since breaks are not focus.

total focus minutes = session length × sessions per day
total focus hours = total focus minutes ÷ 60

elapsed time, which this does not report:
  (session length + break length) × sessions per day

Worked example

Eight sessions of twenty-five minutes with five-minute breaks.

total focus = 25 × 8 = 200 minutes
as hours = 200 ÷ 60 = 3.3 hours of focus
elapsed = (25 + 5) × 8 = 240 minutes = 4.0 hours
the gap between focus and elapsed is 40 minutes
the break length you enter does not change the reported total

3.3 hours of focus inside a four-hour block. Both numbers are true and they answer different questions — one is how much work you did, the other is how much of your day it took.

Reading the result

Block out the elapsed figure in your calendar and judge yourself against the focus figure. Booking four hours and expecting four hours of output is the mistake this arithmetic exists to prevent.
Eight sessions is a demanding day, not a baseline. Sustained deep concentration for more than three or four hours is unusual for most people, and a plan that assumes eight strong pomodoros every day will fail on the days that matter.
The twenty-five-minute length is a convention from one popular method, not a finding about attention. Plenty of work suits fifty-minute blocks better, and interrupting a task that is going well to honour a timer is a cost the method rarely accounts for.
Longer sessions need longer breaks. Scaling to fifty-minute blocks while keeping five-minute breaks changes the recovery ratio substantially, which is worth deciding on purpose rather than by leaving a field unchanged.

Common questions

Why doesn't changing the break length change my total?: Because the total measures focus time only, and breaks are not focus. Break length matters for how long the block occupies your day — multiply session plus break by the session count to get that — but it cannot change how many minutes you spent working.
How many sessions should I plan?: Fewer than you want to. Most people can sustain three to five strong sessions before quality drops sharply, so a plan of eight is better read as an upper bound for an exceptional day than as a daily target.