Production calculator
Production Schedule Attainment Calculator
Show whether a shift or day met the plan, how many units were missed, and how much lost time explains the gap.
What this calculator does
- Compare planned output against actual output and estimate the schedule miss from lost time.
- Use in daily management reviews to separate demand misses from downtime and execution losses.
- Compares planned output with actual output and estimates how much lost time explains the schedule miss.
Formula used
- Schedule attainment = actual units ÷ planned units
- Output gap = planned units − actual units
- Lost capacity = lost hours × standard output rate
Inputs explained
- Planned units: undefined
- Actual units: undefined
- Lost production time: undefined
- Standard output rate: undefined
How to use the result
- Use it in daily production reviews when a line misses plan and the team needs to separate output gap from lost-capacity causes.
- It does not explain every cause of the miss; material shortages, quality holds, staffing, and rate losses may need separate review.
Common questions
- What is the Schedule Attainment calculator for? It calculates actual output versus planned output, the unit gap, and the capacity lost from reported lost production time.
- What information do I need before using it? Enter planned units, actual units, lost production hours, and the standard output rate for the same line and time window.
- How should I use schedule attainment? Use it to decide whether recovery requires overtime, rate improvement, fewer stops, or a revised plan for the remaining shift or week.
- When is the result only an estimate? It is only an estimate when planned units, lost hours, and standard rate do not use the same SKU mix or reporting window.
Last reviewed 2026-05-12.