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A notification that steals five minutes sounds harmless until you count the full cost: the interruption itself, the chain of checks it starts, and the refocus time before complex work flows again. This calculator multiplies your real daily interruptions by the minutes each one costs — including getting back into flow — and prices the result against whatever you value an hour at. The yearly figure is usually the surprise: small interruptions compound into thousands of dollars and hundreds of hours, and almost all of it can be deferred without losing anything important.
Put a dollar figure on the interruptions breaking your focus — notifications, drop-ins and the minutes it takes to get back into flow — per day, week and year.
Watch one normal day and tally everything that breaks focus: notifications, drop-ins and self-interruptions to check something. Twenty a day is average for phone users — the number feels too high until you actually count it.
Because that is the real cost. Returning to a complex task after a break typically takes 10-20 minutes of re-orienting, so a 'quick' check can cost half an hour of productive time in total.
For non-human notifications, yes. Email and chat can wait for set check-in times without anything urgent being lost — that is exactly what batch check-ins are for, and most teams adapt within days.
Every tool answers instantly from our own knowledge and calculators — no AI wait, no account. Rest is productive: these tools free your time, they do not fill it. Want the deeper, personalised version? Each has a $2.95 full report.