How do you calculate Line OEE?

Multiply availability by performance by quality. Here availability is 6.6 / 8 = 82.5%, times an 88% speed factor and a 97% quality factor: 0.825 x 0.88 x 0.97 = 70.4% OEE.

What is a good OEE for a packaging or roasting line?

World-class is around 85%, typical discrete manufacturing sits near 60%, and many food packaging lines run 65-75%. The example's 70.4% is respectable but has clear headroom, mostly in availability and speed.

Why is OEE so much lower than each factor?

Because the three factors multiply. Availability of 82.5%, performance of 88%, and quality of 97% are each decent, but compounded they land at 70.4% — that multiplication is exactly why OEE surfaces hidden losses that single metrics miss.

What is the difference between availability and OEE?

Availability only counts whether the line was running versus planned time (82.5% here). OEE also penalizes running slow and producing rejects, so it is always lower than availability alone unless speed and quality are both perfect.

Which factor should I improve first?

The lowest one with the most loss. At 82.5% availability and 88% performance, both beat the 97% quality factor — so changeover and minor-stop reduction on a bagging line typically returns more OEE points than chasing the last reject.

Should I subtract changeover time from planned time?

Be consistent. If changeovers are a planned, accepted part of the schedule, leaving them in planned time makes them count as availability loss you can attack; excluding them flatters the number. Pick one convention and hold it across reports.

Coffee, Tea, Roasting & Dry Goods Processing calculator

Line OEE Calculator

Line OEE (Overall Equipment Effectiveness) tells you what fraction of your planned production time a roasting or packaging line actually converted into good, saleable output at rated speed. It multiplies three losses together — availability (was the line running?), performance (was it running at speed?), and quality (was the output releasable?). Plant managers and line leaders on bagging, sachet, and roast lines use OEE as the single benchmark that exposes whether changeovers, jams, and underweight rejects are quietly stealing capacity. Because it stacks three factors, an OEE in the low 70s usually means no single disaster but several modest losses compounding.

What this calculator does

Estimate line OEE-style availability from operating time, planned time, performance factor, and quality factor.
reviewing coffee, tea, or dry goods line performance by shift or run
It computes base availability from operating time over planned time, then multiplies by your speed performance and quality release factors to give a single OEE percentage.

Formula used

Base availability = line operating time ÷ planned production time × 100
Line OEE = base availability × speed performance factor × quality release factor

Inputs explained

Actual line operating time:
Planned production time:
Speed performance factor:
Quality release factor:

How to use the result

Use it shift-by-shift or daily on a roasting, bagging, or sachet line to track effectiveness and to target the biggest loss bucket for improvement.
It is only as good as your loss data — if planned time excludes scheduled stops inconsistently, or performance and quality are estimated rather than measured, the OEE will mislead.

Common questions

How do you calculate Line OEE? Multiply availability by performance by quality. Here availability is 6.6 / 8 = 82.5%, times an 88% speed factor and a 97% quality factor: 0.825 x 0.88 x 0.97 = 70.4% OEE.
What is a good OEE for a packaging or roasting line? World-class is around 85%, typical discrete manufacturing sits near 60%, and many food packaging lines run 65-75%. The example's 70.4% is respectable but has clear headroom, mostly in availability and speed.
Why is OEE so much lower than each factor? Because the three factors multiply. Availability of 82.5%, performance of 88%, and quality of 97% are each decent, but compounded they land at 70.4% — that multiplication is exactly why OEE surfaces hidden losses that single metrics miss.
What is the difference between availability and OEE? Availability only counts whether the line was running versus planned time (82.5% here). OEE also penalizes running slow and producing rejects, so it is always lower than availability alone unless speed and quality are both perfect.
Which factor should I improve first? The lowest one with the most loss. At 82.5% availability and 88% performance, both beat the 97% quality factor — so changeover and minor-stop reduction on a bagging line typically returns more OEE points than chasing the last reject.

Last reviewed 2026-05-12.