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Inventory turnover
Measure inventory turns and average days in inventory.
PerformancePERFORMANCE
Backlog Clearance & Recovery Time Calculator
Estimate working days to clear a starting backlog from constant daily completion capacity and incoming work.
Backlog clearance calculator
Estimate working days to clear a starting backlog from constant daily completion capacity and incoming work.
YOUR RESULT LIVE CALCULATION
Rounded starting-backlog clearance time
20working days
CONSTANT POSITIVE NET CLEARANCEOne less spreadsheet to keep open.
- Sustainable completions per day
- 240 units
- Incoming work per day
- 180 units
- Net daily clearance
- 60 units/day
- Unrounded working-day estimate
- 20
- Backlog after one working day
- 1,140 units
Constant comparable rates on working days only. A finite recovery estimate exists only with positive net clearance, unless the starting backlog is zero.
BEHIND THE NUMBER
How the calculation works
Completion and arrival rates apply every working day on one consistent work-unit basis. When a positive starting backlog has zero or negative net clearance, no finite recovery time exists in this model. A zero starting backlog needs zero clearance days, but incoming work above completions will create new backlog.
Net clearance per working day = completions - arrivals; if positive, days = ceil(starting backlog / net clearance)
When this calculation helps
Only capacity left after new incoming work is available to reduce an existing backlog. Compare like units and time periods before estimating the number of periods required.
Check the interpretation
If arrivals equal or exceed processing capacity, the backlog has no finite clearance time under this steady model. A temporary overtime plan also needs a duration and realistic productivity. Do not interpret an average clearance time as a guaranteed date for every waiting order.
This is a constant-rate workload scenario, not a service-level forecast, queue simulation, or promised recovery date. It excludes working calendars, priorities, variable arrivals, rework, and capacity changes.
Good to know
Why is the answer N/A?
A positive backlog cannot clear when incoming work matches or exceeds sustainable completions. Increase completion capacity, reduce incoming work, or model a changing-rate plan.
Are the days calendar days?
No. They are working periods over which the entered daily rates apply. A real calendar and actual operating schedule are needed to obtain a date.