Calculate the share of scheduled deliveries completed inside their promised windows and separate early, late, and failed attempts. The result gives operations teams a clean service-level measure while also exposing the miss volume that must be investigated.
This service level counts only deliveries completed within the stated window as successful. Early arrivals, late arrivals, and failed attempts remain visible as separate exceptions.
The 95% gap is a scenario target for planning, not an industry benchmark or guarantee. Change your operational target outside the calculator if another threshold applies.
Out of 500 scheduled deliveries, 455 inside the window produce a 91.00% service level. The 45 misses consist of 15 early, 20 late, and 10 failed attempts; 20 more inside-window deliveries would be needed to reach 95%.
Not in this calculator. A delivery must occur inside the promised interval; early arrivals are reported as misses.
They remain in scheduled deliveries but not in inside-window deliveries, so they reduce the service level.
The calculator flags the mismatch because every scheduled delivery should belong to one outcome category.
The target gap shows the additional inside-window successes needed for the same total number of scheduled deliveries.
Yes. Enter counts from a consistent carrier, route, facility, or reporting period.
| Input | Unit | Role |
|---|---|---|
| Scheduled deliveries | deliveries | All delivery attempts with a promised window. |
| Inside-window deliveries | deliveries | Completed no earlier or later than the promised window. |
| Early deliveries | deliveries | Completed before the window opened. |
| Late deliveries | deliveries | Completed after the window closed. |
| Failed attempts | deliveries | Not completed on the scheduled attempt. |