Can attainment go above 100 percent?

Yes, when the line finishes more good units than the plan called for, such as after a schedule change or a stocked order. That is why this page never blocks overproduction.

Where do the lost hours come from?

From the downtime log: stops, changeovers past plan, slow running and starved or blocked time. Use the same hours booked against the shift.

What does adjusted attainment tell me?

It shows attainment if the lost hours had run at standard rate. A large lift means the miss came from lost time, not from an unrealistic plan.

How is this different from OEE availability?

Availability compares run time with planned production time. Attainment compares good units with planned units, so slow cycles and scrap move it even when availability holds.

Production calculator

Schedule Attainment Calculator

Score the period's good output against the schedule and put a number on the production time it lost. Enter the plan, the count, the hours lost and the standard rate.

What this calculator does

Good units against the plan, the gap, what the lost hours cost, and the units needed to hit target.

Formula used

Schedule attainment = actual units ÷ planned units × 100
Output gap = planned units − actual units
Lost capacity = lost hours × standard output rate
Adjusted attainment = (actual units + lost capacity) ÷ planned units × 100
Units to target = larger of 0 and planned units × target % ÷ 100 − actual units

Inputs explained

Planned Units: Good units the schedule called for over this period.
Actual Units: Good units the line actually finished in the period.
Lost Production Time: Hours lost to stops and slow running, from the log.
Standard Output Rate: Engineering standard rate for this product on this line.
Target Attainment: Attainment the plant expects from this schedule.

How to use the result

Best suited to end-of-period review at the production board, pricing downtime against the schedule, deciding whether to add catch-up hours.
Lost hours are priced at standard rate; a slow line may lose more or less. A period average: a bad day and a strong day can cancel out.

Current U.S. benchmarks

The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).

Common questions

Can attainment go above 100 percent? Yes, when the line finishes more good units than the plan called for, such as after a schedule change or a stocked order. That is why this page never blocks overproduction.
Where do the lost hours come from? From the downtime log: stops, changeovers past plan, slow running and starved or blocked time. Use the same hours booked against the shift.
What does adjusted attainment tell me? It shows attainment if the lost hours had run at standard rate. A large lift means the miss came from lost time, not from an unrealistic plan.
How is this different from OEE availability? Availability compares run time with planned production time. Attainment compares good units with planned units, so slow cycles and scrap move it even when availability holds.

Last reviewed 2026-10-01.