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Replenishment Lead Time Breakdown Calculator
Add order processing, production, dispatch, transit, customs, and receiving time into a serial replenishment lead-time estimate.
Lead-time breakdown calculator
Add order processing, production, dispatch, transit, customs, and receiving time into a serial replenishment lead-time estimate.
YOUR RESULT LIVE CALCULATION
Serial replenishment lead time
15days
TRANSIT IS LONGEST- Order processing
- 1 days (6.7%)
- Production / preparation
- 4 days (26.7%)
- Dispatch / origin handling
- 1 days (6.7%)
- Transit
- 6 days (40%)
- Customs clearance
- 1 days (6.7%)
- Receiving / put-away
- 2 days (13.3%)
All stages are serial and on one day basis. Overlap, holidays and live shipment events are not modeled.
BEHIND THE NUMBER
How the calculation works
This model treats all stages as sequential. Use the same time convention for every input: all calendar days or all working-day equivalents. Enter zero for stages already included elsewhere. The result describes order release to stock being usable, not just port-to-port transit. Stage shares help identify which entered components dominate the estimate.
Replenishment lead time = processing + production + dispatch + transit + customs + receiving
When this calculation helps
Separate process time, waiting, transport, and other entered stages to see where the elapsed lead time accumulates. A large queue can matter more than a short improvement to the physical task.
Check the interpretation
Do not add durations measured on incompatible calendars or count overlapping activities twice. This additive breakdown does not solve a dependency network. Use confirmed stage boundaries when comparing a future scenario with actual performance.
Do not sum overlapping stages or duplicate handling time already included in transit. This is not a live ETA, business-calendar calculation, or uncertainty model. Supplier and route delays must be reflected in your own assumptions.
Worked example: Working-Day Delivery Dates: Cutoffs, Holidays, and Day Zero
Good to know
Does it account for weekends and holidays?
No. Convert stage assumptions to one consistent time basis before entering them. The tool does not map durations onto a calendar.
Can I use this with the reorder-point tool?
Yes, as an entered average lead-time assumption on the same day basis as daily demand. Variability and supplier disruption require separate assessment.