Part of the HR metrics hub — the analytics layer of the hiring funnel. It connects to employer operations for planning and to the staffing layer when you need to bridge a gap.
What it measures
Vacancy rate divides open positions by total positions (filled plus open) at a point in time or on average over a period. It is a snapshot of how much of the planned workforce is missing, which bridges the recruiting and capacity views.
It can be measured organisation-wide or for a specific team or role family.
Why it matters
A rising vacancy rate is an early sign that capacity is eroding faster than hiring can replace it. It links time to fill and pipeline health to the real-world impact of unfilled work, and it helps prioritise which roles to push.
It also informs whether to bridge gaps temporarily — for example through staffing support — while permanent hiring catches up.
Formula
(Open positions ÷ Total positions) × 100
Decide whether you measure at a point in time or on average, and whether "positions" follows the plan or only approved roles. Keep it consistent.
Worked example: With 9 open positions out of 150 total positions, the vacancy rate is (9 ÷ 150) × 100 = 6%.
Inputs you need
- The number of open positions
- The total number of positions (filled + open)
- A point-in-time or average basis
- A consistent definition of "position"
How to read it
Where vacancies sit matters more than the overall rate: a few open critical roles can hurt more than many easily-covered ones. Read vacancy rate with time to fill and pipeline coverage to see whether open roles will close soon or linger.
A persistent vacancy rate may mean the plan is over-ambitious for the market, not just that recruiting is slow.
Common mistakes
- Reading the overall rate without weighting role criticality.
- Mixing point-in-time and average bases.
- Counting positions inconsistently (planned vs approved).
- Reading vacancy rate without time to fill and pipeline coverage.
Operational considerations
- Weight vacancies by criticality, not just count.
- Pick a point-in-time or average basis and keep it.
- Read vacancy rate with time to fill and pipeline coverage.
- Use temporary cover for critical gaps while permanent hiring catches up.
Use this metric inside the operating cadence: plan with workforce planning and headcount planning, anticipate demand with hiring forecasting, and check it against workforce capacity planning.
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