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Backlog and Deadline Capacity Reference

Match a 320-hour project backlog with weekly delivery capacity and a deadline, including zero capacity and spare-hour scenarios.

By PriceAndProfit Editorial Updated

All rows start with 320 hours of accepted but unfinished delivery work and a four-week deadline. Weekly capacity means hours genuinely available to deliver that work, after the specified nonbillable duties and absences. The table uses a single interchangeable skill pool. It cannot establish that a real team can meet every job date when tasks require different people or a particular sequence.

Weeks required = 320 / weekly delivery hours; deadline gap = 320 − 4 × weekly delivery hours
Hypothetical inputs and independently checked arithmetic
Weekly delivery capacityWeeks requiredFour-week capacityUncovered hours; negative means spare
0 hours No delivery capacity 0 hours 320 hours
40 hours 8 weeks 160 hours 160 hours
64 hours 5 weeks 256 hours 64 hours
80 hours 4 weeks 320 hours 0 hours
100 hours 3.2 weeks 400 hours −80 hours

Interpret the result

The zero-capacity row has no finite completion quotient. It must not be displayed as zero weeks merely because division is impossible. At 100 weekly hours, the negative gap denotes 80 spare hours within this modeled deadline, not negative workload. The 3.2-week quotient assumes capacity is smoothly available; an uneven calendar can shift the actual completion date.

Check before applying the example

Split accepted backlog from prospective sales, track remaining rather than originally budgeted hours, and place known starts or approval holds on a calendar. Check constrained roles separately before assigning spare aggregate hours to another project. A paid retainer or collected deposit can create a delivery obligation without creating any extra capacity.

Use your own inputs

The calculator uses the same stated decision boundary.

Method reference: OpenStax: Operating Budgets. Checked October 22, 2026. Capacity, sales and delivery-cost budgets; no market rate assumptions.

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