Examples
Examples
Try the starting example
- Orders: ID, order date, full-receipt date or none
- A,2026-10-01,2026-10-05 B,2026-10-01,2026-10-08 C,2026-10-10,none
- As-of date
- 2026-10-20
- Observed day basis: working or calendar
- working
- Working weekdays: Monday 1 through Sunday 7
- 1,2,3,4,5
- Excluded working dates, comma-separated, or none
- none
- Nearest-rank median completed lead time (days)
- 2
- Nearest-rank 90th percentile completed lead time (days)
- 5
- Mean completed lead time (days)
- 3.5
- Completed orders
- 2
- Orders not fully received
- 1
- Largest ongoing age on same day basis
- 7
Try another scenario
- Orders: ID, order date, full-receipt date or none
- A,2026-10-01,2026-10-05 B,2026-10-01,2026-10-08 C,2026-10-10,none
- As-of date
- 2026-10-20
- Observed day basis: working or calendar
- calendar
- Working weekdays: Monday 1 through Sunday 7
- 1,2,3,4,5
- Excluded working dates, comma-separated, or none
- none
- Nearest-rank median completed lead time (days)
- 4
- Nearest-rank 90th percentile completed lead time (days)
- 7
- Mean completed lead time (days)
- 5.5
- Completed orders
- 2
- Orders not fully received
- 1
- Largest ongoing age on same day basis
- 10
Calculation method
Calculation method
Nearest-rank median completed lead time (days)
Count from the day after ordering through receipt day, then select rank ceil(0.5×n).
Nearest-rank 90th percentile completed lead time (days)
Select rank ceil(0.9×n) from completed observations only.
Mean completed lead time (days)
Average completed observations, keeping ongoing orders separate.
Completed orders
Count valid full-receipt dates on/before as-of.
Orders not fully received
Count none receipt dates; these are censored observations rather than zero lead times.
Largest ongoing age on same day basis
Count order-to-as-of age for incomplete orders under the selected calendar convention.
Symbols and units
- a
- Orders: ID, order date, full-receipt date or none
- b
- As-of date
- c
- Observed day basis: working or calendar
- d
- Working weekdays: Monday 1 through Sunday 7
- e
- Excluded working dates, comma-separated, or none
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A completed-order distribution with ongoing ages shown separately. This is not a censored-data survival estimate or a forecast of future supplier lead time.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.