By Intious · Updated September 10, 2026
Scheduled hours show assigned time; productive hours show the portion available for a defined workload. Comparing demand with the wrong measure can hide a capacity gap.
Try the calculator with your own figures.
Use a specific definition of productive work
Productive means available for the work you are modeling, not a judgment about whether other work is valuable. Training and team meetings may be essential but unavailable for answering customer requests during that hour. A project team may instead include a planning meeting in project demand. State the definition so the same hour is not treated differently across the demand estimate and the capacity estimate.
Compare like-for-like figures
A manager sees 400 scheduled weekly hours against 360 hours of expected work and concludes there is a 40-hour surplus. If 20% of the schedule is unavailable for that work, productive capacity is only 320 hours and the team has a 40-hour shortfall. Both calculations use the same schedule; the different conclusion comes from matching productive demand with productive capacity rather than with gross scheduled hours.
Do not confuse shrinkage with utilization
Shrinkage describes time excluded from available capacity in this model. Utilization describes the share of available capacity used for the work. If 400 scheduled hours become 320 available hours after shrinkage, and 288 are used, utilization on that available-hours denominator is 90%. Dividing 288 by the original 400 gives 72%, which answers a different question. Always label the denominator when presenting a percentage.
Build a weekly plan and then inspect the schedule
Weekly totals are a useful starting point for capacity conversations. They cannot show whether everyone is available at the time demand arrives. A team can have spare hours on Friday and a severe Monday morning gap. Check coverage by time interval and role before committing to a service target. Separate calculations may be needed for specialist tasks that cannot be transferred across all employees.
Choose an action and update the assumptions
A gap may be addressed through added scheduled hours, reduced avoidable unavailable time, a changed workload or different timing. Model each action explicitly instead of assuming every new hour is fully productive. With 20% shrinkage, adding 50 scheduled hours supplies 40 productive hours. If a proposed change affects the shrinkage rate itself, rerun the entire scenario and record why the new assumption is credible.
Frequently asked questions
Are paid hours always productive hours?
No. Payment and task availability are different concepts. This capacity model does not determine pay or whether time must be compensated.
Can a team have spare weekly capacity but still be understaffed?
Yes. Required skills, peaks and minimum coverage can create gaps even when total weekly hours exceed demand.
Should I subtract leave from the schedule and include it in shrinkage?
Do not remove the same hours twice. Choose a consistent starting schedule and include only unavailable time still present in that denominator.