How do you calculate a throughput gap?

Subtract required demand from available good throughput, then divide by a reference throughput. With 5,800 available against 6,200 required and 6,200 as reference, the gap is -400 units, or -6.45%.

What does a negative throughput margin mean?

A negative margin is a shortfall: the line can't meet demand. The -6.45% here means available good output falls 400 units short of the 6,200 required, so you'll backorder or run overtime unless you add capacity.

What is a good throughput margin for a packaging line?

A small positive cushion, often 5-15%, gives room to absorb downtime and demand spikes without overbuilding. A persistent negative margin like -6.45% signals you need more capacity or fewer SKUs on the line.

Why use a reference throughput in the denominator?

The reference sets what the percentage is relative to. Using required demand (6,200) as the reference expresses the gap as a share of what you need; using available capacity instead reframes it as a share of what you can make.

How is throughput gap different from a capacity utilization number?

Utilization tells you how hard the line is running against its own ceiling. Throughput gap directly compares output to demand, so it answers the operational question of whether you'll meet orders, not just how busy you are.

What should I do about a -6.45% shortfall?

Close 400 units through added run time, a faster bottleneck, reduced changeovers, or moving SKUs to another line. Even small OEE gains on the constraint can flip a single-digit-percent shortfall into a cushion.

Bottling, Canning & Filling Lines calculator

Throughput Gap Calculator

Throughput gap measures whether a bottling or canning line's good-output capacity covers required demand, expressed as a percentage cushion or shortfall against a reference. Schedulers and plant managers use it to flag in advance when a line can't keep up with the order book so they can add a shift, offload SKUs, or push the bottleneck before customers feel it. It matters because a packaging line that runs short of demand quietly builds backorders and overtime, while one with a healthy cushion can absorb downtime and demand spikes. This calculator turns the abstract feeling of being behind into a signed percentage you can act on.

What this calculator does

Compare available good packaging throughput with the throughput required to meet the run schedule or customer demand.
a bottling, canning, or filling line must be checked against required containers per hour before the schedule is committed
It computes the difference between available good throughput and required demand, then divides by a reference throughput to express it as a percentage margin.

Formula used

Throughput cushion or shortfall = available good line throughput - required demand throughput
Packaging throughput margin = throughput cushion or shortfall ÷ reference throughput

Inputs explained

Available good line throughput:
Required demand throughput:
Reference throughput basis:

How to use the result

Use it during demand-capacity planning, S&OP reviews, or when deciding whether to add capacity or reroute volume for an upcoming period.
It's a single-period snapshot at one throughput level; it won't capture mix-driven speed changes or the buffering effect of inventory between the line and the customer.

Common questions

How do you calculate a throughput gap? Subtract required demand from available good throughput, then divide by a reference throughput. With 5,800 available against 6,200 required and 6,200 as reference, the gap is -400 units, or -6.45%.
What does a negative throughput margin mean? A negative margin is a shortfall: the line can't meet demand. The -6.45% here means available good output falls 400 units short of the 6,200 required, so you'll backorder or run overtime unless you add capacity.
What is a good throughput margin for a packaging line? A small positive cushion, often 5-15%, gives room to absorb downtime and demand spikes without overbuilding. A persistent negative margin like -6.45% signals you need more capacity or fewer SKUs on the line.
Why use a reference throughput in the denominator? The reference sets what the percentage is relative to. Using required demand (6,200) as the reference expresses the gap as a share of what you need; using available capacity instead reframes it as a share of what you can make.
How is throughput gap different from a capacity utilization number? Utilization tells you how hard the line is running against its own ceiling. Throughput gap directly compares output to demand, so it answers the operational question of whether you'll meet orders, not just how busy you are.

Last reviewed 2026-05-12.