Team Capacity Calculator

Headcount Isn't the Same as Capacity

Eight people on a team doesn't mean eight people's worth of full-time output — meetings, PTO, on-call rotations, and administrative overhead all eat into the hours actually available for project work. This calculator converts team size and a weekly hours figure into a realistic capacity number by applying an availability percentage, rather than assuming everyone is at their desk 100% of the time.

The Formula

Team Capacity = Team Size × Hours per Person per Week × Weeks × (Availability % / 100)

Raw capacity (team size × hours × weeks) is calculated first, then scaled down by the availability percentage to produce the effective capacity actually usable for planning.

Where This Is Useful

  • Sprint and phase planning — know the real number of hours a team can commit to before promising a delivery date.
  • Comparing capacity to demand — feed the resulting hours into the Resource Allocation Calculator to see whether planned work exceeds available capacity.
  • Modeling PTO-heavy periods — lower the availability percentage for a holiday-heavy month to see the realistic capacity hit before it causes a missed date.

Worked Example

An 8-person team, each available 32 hours a week for project work, over a 2-week sprint, with 90% availability after accounting for meetings and time off:

Sample team capacity calculation
Team sizeHours/person/weekWeeksAvailabilityRaw capacityEffective capacity
832290%512 hours460.8 hours

How to Use This Calculator

  1. Enter Team Size — number of people on the team.
  2. Enter Hours per Person per Week — typical working hours each person contributes weekly.
  3. Enter the Number of Weeks for the period being planned.
  4. Optionally enter Availability % to account for meetings, PTO, or other time away from project work (defaults to 100% if left blank).
  5. Select Calculate to get the raw and effective team capacity in hours.

Related Calculations

Compare the resulting capacity against actual hours logged with the Resource Allocation Calculator, or convert capacity into an achievable sprint velocity with the Sprint Velocity Calculator.