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Workforce Capacity Calculator

Estimate your team’s total productive capacity for a period from headcount, productive hours per employee and any planned leave to subtract. It uses your own figures and calculates instantly in your browser.

Practical use cases

  • Estimating how many productive hours a team has available in a period.
  • Feeding a realistic capacity figure into the workforce allocation calculator.
  • Sense-checking whether planned work fits the capacity you actually have.

Calculator

Works entirely in your browser — nothing is sent, saved or tracked. Results update as you type.

Total productive capacity
Basis

Estimate only, from the figures you enter. Nothing is sent or stored.

How it works

The formula is:

Total capacity = (employees × productive hours per employee) − planned leave hours

Use “productive” hours, not gross paid hours — exclude time you would never expect to be available for the work. Keep the basis the same each period so figures stay comparable.

Worked example: With 12 employees at 130 productive hours each and 80 hours of planned leave, capacity is (12 × 130) − 80 = 1,480 hours.

For the full background — what it measures, why it matters and how to read it — see the workforce capacity metrics guide.

How to read the result

This is the realistic pool of hours available for work in the period. It is an estimate that depends heavily on what you treat as “productive” hours.

Pair it with the workforce allocation calculator to see how much of this capacity each activity consumes, and keep a buffer for the unexpected.

Common mistakes

  • Using gross paid hours instead of realistic productive hours.
  • Forgetting to subtract planned leave and known absences.
  • Changing the basis between periods so capacity is not comparable.
  • Planning to use 100% of capacity with no buffer.

Free, printable planning resources

Plan and onboard consistently alongside the numbers. No signup, no gating.

Informational only. This calculator gives a simple estimate for planning and education from the figures you enter. It is not legal, tax, financial or employment-law advice, contains no benchmarks, statistics or salary data, and makes no claims about any real population. It runs entirely in your browser — nothing is sent, stored or tracked. Confirm anything that matters with a qualified professional.

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FAQ

Frequently asked questions

How is workforce capacity calculated?

Number of employees multiplied by productive hours each, then minus any planned leave or absence hours you enter.

What are “productive” hours?

Hours you can realistically expect to be available for the work, excluding time that never is. Define this once and apply it consistently.

How does this relate to allocation?

This gives total available hours; the workforce allocation calculator then shows what share of those hours an activity uses.

Is my input stored?

No. The calculation runs in your browser and nothing is sent or saved.