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Weekly Focus Calculator

The Weekly Focus Calculator measures how much of your workable week was converted into completed distraction-limited focus time. It compares scheduled focus hours with actual completed focus hours, and also shows the share of available work time devoted to focused work. An interruption adjustment estimates net focus after time lost to disruptions.

This calculator is useful for knowledge work, study, writing, coding, and other tasks where uninterrupted attention matters more than raw attendance. The schedule adherence result reveals whether planned focus blocks were protected, while the focus share shows how central deep work was within the week. Because interruption estimates can be subjective, use the same method each week and interpret changes rather than treating one value as exact.

Measure weekly focus

hours
hours
hours
hours
Result
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net focused hours
Plan adherence—
Net focus share—
Focus time lost—

1. Define available work time
Enter the hours in the week that could reasonably be used for work or study.

2. Enter planned focus blocks
Total the distraction-limited sessions you intended to protect.

3. Enter completed focus time
Record the time actually spent in those sessions before subtracting interruptions.

4. Estimate interruptions
Count time inside focus blocks that was diverted to calls, messages, or unrelated tasks.

5. Review both rates
Use plan adherence to evaluate scheduling and net focus share to evaluate allocation.

Net focus time = max(Completed focus time − Interruption time, 0) Plan adherence (%) = Completed focus time ÷ Planned focus time × 100 Net focus share (%) = Net focus time ÷ Available work time × 100

What the result means

The main result estimates completed focus time after subtracting interruptions.

The calculation measures time, not the quality or value of the output produced.

Given: 40 available hours, 15 planned focus hours, 12 completed focus hours, and 1.5 interruption hours.

Calculation: Net focus = 12 − 1.5 = 10.5 hours. Adherence = 12 ÷ 15 × 100 = 80%. Net focus share = 10.5 ÷ 40 × 100 = 26.25%.

Result: The week produced 10.5 net focused hours, equal to 26.3% of available work time.

Can adherence exceed 100%?

Yes. It means completed focus time exceeded the original plan, though that does not automatically mean the week was balanced.

What counts as an interruption?

Count time within an intended focus block that was spent on unrelated activity or forced context switching.

Should meetings be included as focus time?

Usually no, unless the meeting itself requires sustained individual concentration and matches your definition.

Why subtract interruptions from completed time?

The adjustment distinguishes time reserved for focus from time that remained genuinely focused.

Does a higher focus share always mean better performance?

No. Collaborative, administrative, and recovery work can also be necessary, so interpret the rate in context.