Plan your pomodoros against a deadline — calculate how many fit in your available time, distribute them across tasks, and see a visual schedule with breaks.
Most pomodoro tools are timers. This is a planner. Enter your available time (hours or end time), list your tasks with the pomodoros each one needs, and instantly see how many pomodoros actually fit once short and long breaks are accounted for. The tool distributes pomodoros across tasks in order, gives you a clear deadline verdict (fits, slack, or how many minutes you need to extend), and renders a visual timeline of focus blocks and breaks with exact clock times. Supports the classic 25/5/15 technique plus deep-work and ultradian-rhythm presets.
A timer tells you when to start and stop. A planner tells you whether you can actually finish. If you have 4 hours and 12 pomodoros of work queued, a timer will happily run all afternoon while you discover at 5 PM that you ran out of time. The Pomodoro Planner runs the math up front: it calculates exactly how many 25-minute focus blocks fit in your window once short and long breaks are subtracted, then matches that against what your task list demands.
The classic 25/5/15 ratio is calibrated for shallow, interrupt-prone knowledge work. If your day is mostly email triage, code review, and meeting prep, it works well. But if you are writing a research paper, debugging a hard problem, or designing a system, 25 minutes is barely long enough to load context. Switch the pomodoro length to 50 or 90 minutes and watch the schedule rebalance. Long breaks matter more than people think — typically 15 to 25% of any focused work session is non-negotiable rest.
The visual timeline shows your day as a single horizontal bar with each pomodoro and break drawn in proportion to its real length. Short breaks appear as thin green slivers, long breaks as wider amber blocks, and pomodoros are labelled P1, P2, P3 in order. Hover any segment to see its exact start time and which task it covers. The detailed table below repeats the same schedule with clock times so you can transfer it into your calendar in one pass.
Francesco Cirillo developed it in the late 1980s while studying at university. He used a tomato-shaped (pomodoro in Italian) kitchen timer to break work into 25-minute focused intervals separated by short breaks, with a longer break every four cycles.
It is a starting point, not a rule. Research on focused attention suggests most adults can sustain deep concentration for 20 to 90 minutes before fatigue sets in. Use 25 for shallow or fragmented tasks, 50 for analytical work, and 90 for creative deep work that needs ramp-up.
Split it into multiple pomodoros. Large tasks should be broken into 2 to 5 pomodoro chunks; tasks needing more than 5 are usually projects in disguise and should be decomposed further. The planner tells you when your total pomodoros exceed available time.
Short breaks let your brain consolidate what you just learned and reset focus. Skipping them produces diminishing returns — the second hour of nonstop work is far less productive than the first. Long breaks every 4 pomodoros prevent cumulative fatigue.
Yes — try 90-minute ultradian cycles or Cal Newport-style 60 to 120 minute deep-work blocks. The planner supports custom lengths so you can model any cadence: switch the pomodoro length to 50 or 90 minutes and adjust break ratios accordingly.
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