Practical use cases
- Checking how much of the team’s capacity a project or activity is taking.
- Spotting over-allocation before it becomes a delivery risk.
- Comparing how capacity is split across activities on a consistent basis.
Calculator
Works entirely in your browser — nothing is sent, saved or tracked. Results update as you type.
How it works
The formula is:
Allocation share = (hours allocated ÷ total available hours) × 100; Unallocated = total available − allocated
Use the same definition of “available hours” each time — for example, productive hours after planned leave. If allocated hours exceed available hours, the activity is over-allocated.
Worked example: If 240 hours are allocated out of 600 available, the allocation share is (240 ÷ 600) × 100 = 40%, leaving 360 unallocated 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
The share tells you how much of total capacity an activity consumes; the unallocated hours tell you what is left for everything else. A share above 100% means you have committed more than you have.
Read it with the total capacity figure: the same share means very different things on a large versus a small base.
Common mistakes
- Changing what counts as “available hours” between activities.
- Allocating against gross hours without subtracting planned leave.
- Ignoring an over-allocation because the percentage looks plausible.
- Allocating every available hour with no buffer for the unexpected.
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