How do you calculate daily production capacity?

Multiply units per cycle by available cycles per day for gross capacity, then multiply by uptime and yield. At 1 unit/cycle and 3000 cycles/day with 87% uptime and 97% yield, good daily capacity is 2531.7 units/day.

What is the difference between gross and good daily capacity?

Gross daily capacity (3000 units/day here) assumes no stoppages and zero scrap. Good daily capacity (2531.7 units/day) subtracts 390 units lost to downtime and 78.3 units lost to rejects, and is the number you should schedule against.

What is a realistic daily uptime percentage?

For a maintained line, 85-92% is typical once changeovers, breaks and minor stops are counted. The 87% default is realistic; if you are seeing below 80%, planned downtime or chronic micro-stops are likely eroding your day.

How many cycles per day does a line have?

Multiply available production seconds in the day by your cycle rate, or take it from the line PLC. The 3000 cycles/day default reflects the runnable window after breaks and planned downtime, not the full 86,400 seconds in a day.

Why does a 3% reject rate cost so few units?

Because yield is applied after uptime in this model, so the 3% acts only on the parts that survived downtime. That is why rejects cost 78.3 units/day while downtime costs 390 units/day from the same 3000-cycle base.

How do I increase good daily capacity?

Lift whichever loss is largest. Here downtime (390 units) dwarfs rejects (78.3 units), so reducing stoppages by even a few points adds more good units per day than chasing the last fraction of yield.

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Daily Capacity Calculator

Daily capacity converts a line's per-cycle output and available cycles into the number of good units it can ship in a single production day. Production planners and schedulers use it to commit realistic daily targets, set staffing, and promise delivery dates without overcommitting. The metric matters because a day has a fixed number of available cycles, and both downtime and rejects eat into that ceiling every shift. Quoting gross capacity to a customer is one of the fastest ways to miss a daily commitment.

What this calculator does

Calculate good units per day from units per cycle, available daily cycles, uptime, and yield.
a production planner needs a daily output commitment for a conveyorized line or assembly cell
It computes good units per day from units per cycle times available cycles per day, derated by daily uptime and good yield.

Formula used

Gross daily capacity = units per cycle × available cycles per day
Good daily capacity = gross daily capacity × uptime × yield

Inputs explained

Units completed per line cycle:
Available line cycles per day:
Expected daily uptime:
Expected good yield:

How to use the result

Use it when setting daily production targets, planning shift staffing, or checking whether a line can meet a daily order quantity.
It assumes uptime and yield hold steady across the whole day; a long unplanned stoppage or a quality excursion in one shift will pull actual output below the daily figure.

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

How do you calculate daily production capacity? Multiply units per cycle by available cycles per day for gross capacity, then multiply by uptime and yield. At 1 unit/cycle and 3000 cycles/day with 87% uptime and 97% yield, good daily capacity is 2531.7 units/day.
What is the difference between gross and good daily capacity? Gross daily capacity (3000 units/day here) assumes no stoppages and zero scrap. Good daily capacity (2531.7 units/day) subtracts 390 units lost to downtime and 78.3 units lost to rejects, and is the number you should schedule against.
What is a realistic daily uptime percentage? For a maintained line, 85-92% is typical once changeovers, breaks and minor stops are counted. The 87% default is realistic; if you are seeing below 80%, planned downtime or chronic micro-stops are likely eroding your day.
How many cycles per day does a line have? Multiply available production seconds in the day by your cycle rate, or take it from the line PLC. The 3000 cycles/day default reflects the runnable window after breaks and planned downtime, not the full 86,400 seconds in a day.
Why does a 3% reject rate cost so few units? Because yield is applied after uptime in this model, so the 3% acts only on the parts that survived downtime. That is why rejects cost 78.3 units/day while downtime costs 390 units/day from the same 3000-cycle base.

Last reviewed 2026-05-12.