How do you calculate schedule adherence cost impact?

Multiply missed orders or hours by cost per miss and by the schedule-attributable share, then add expedite and replanning cost. With 18 misses at $320 each, 75% attributable, plus $850 expedite, the impact is $5,170.

What is a good schedule adherence rate?

World-class plants run 95%+ adherence to the frozen schedule. Below about 85% you typically see the kind of expedite-and-replan churn that drives the fixed-cost adder — in the example, $850 on top of $4,320 in miss cost.

Why separate the schedule-attributable share?

Not every missed order is the scheduler's fault. The 75% factor strips out misses driven by suppliers, machine failures, or quality holds, so the $4,320 attributable figure reflects only what better planning could realistically recover.

Should I measure misses in orders or hours?

Use whichever your cost-per-miss is built on. Orders work well for discrete job shops; standard hours work better when jobs vary wildly in size. Just keep the unit consistent with the cost-per-miss input.

What is the difference between schedule adherence and on-time delivery?

Adherence measures whether you executed the internal plan as sequenced and timed; on-time delivery measures whether the customer got the part by the promised date. You can be late to the schedule yet still ship on time by burning expedite cost — which this calculator captures.

How do I lower this cost?

Attack the largest term. If miss count is high, improve finite scheduling and protect the frozen window; if expedite cost dominates, build in buffer capacity so misses don't force air freight and overtime.

Advanced Planning, Scheduling & APS calculator

Schedule Adherence Cost Impact Calculator

Schedule adherence cost impact puts a dollar figure on the orders or hours your plant planned to complete but didn't, plus the expedite and replanning scramble that follows. Plant managers and APS analysts use it to turn a soft "we're behind" into a hard number that competes for capital and process-improvement attention. Schedule misses cascade — a missed order today becomes overtime, air freight, and an annoyed customer tomorrow — so isolating the schedule-attributable portion keeps the case honest. It is the metric that makes the cost of poor planning visible to finance.

What this calculator does

Estimate the cost impact of schedule adherence misses from missed orders, cost per miss, adherence responsibility, and fixed expediting cost.
a master scheduler needs to quantify the business impact of missed scheduled completions
It multiplies missed scheduled orders or hours by the cost per miss and the share genuinely caused by scheduling, then adds expedite and replanning cost.

Formula used

Adherence-attributable impact = missed scheduled orders or hours × cost per miss × schedule-attributable share
Schedule adherence cost impact = adherence-attributable impact + expedite and replanning cost

Inputs explained

Missed scheduled orders or hours:
Cost per schedule miss:
Schedule-attributable share:
Expedite and replanning cost:

How to use the result

Use it in a weekly or monthly adherence review, when building a business case for APS or planning improvements, or after a bad week to size the damage.
The schedule-attributable share is a judgment call; if you over-attribute misses to scheduling when the real cause was a supplier or quality problem, the number overstates the planning case.

Current U.S. benchmarks

Manufacturing hourly earnings average $30.27 (BLS, Jun 2026), up 4.4% from a year earlier. Median machinist pay is $28.24/hr (OEWS 2025), with state medians on each state page. Manufacturers have 529k open positions nationally (BLS JOLTS).
U.S. manufacturing runs at 75.6% of capacity (Federal Reserve, May 2026). New factory orders are up 2.3% year over year (Census).

Common questions

How do you calculate schedule adherence cost impact? Multiply missed orders or hours by cost per miss and by the schedule-attributable share, then add expedite and replanning cost. With 18 misses at $320 each, 75% attributable, plus $850 expedite, the impact is $5,170.
What is a good schedule adherence rate? World-class plants run 95%+ adherence to the frozen schedule. Below about 85% you typically see the kind of expedite-and-replan churn that drives the fixed-cost adder — in the example, $850 on top of $4,320 in miss cost.
Why separate the schedule-attributable share? Not every missed order is the scheduler's fault. The 75% factor strips out misses driven by suppliers, machine failures, or quality holds, so the $4,320 attributable figure reflects only what better planning could realistically recover.
Should I measure misses in orders or hours? Use whichever your cost-per-miss is built on. Orders work well for discrete job shops; standard hours work better when jobs vary wildly in size. Just keep the unit consistent with the cost-per-miss input.
What is the difference between schedule adherence and on-time delivery? Adherence measures whether you executed the internal plan as sequenced and timed; on-time delivery measures whether the customer got the part by the promised date. You can be late to the schedule yet still ship on time by burning expedite cost — which this calculator captures.

Last reviewed 2026-05-12.