What Is Throughput?

Throughput is the amount of a product or service that a company can produce and deliver to a client within a specified period of time. The term is often used in the context of a company's rate of production or the speed at which something is processed. Businesses with high throughput levels can take market share away from lower throughput firms because high throughput generally indicates that the company can produce a product or service more efficiently than their competitors.

Key Takeaways

  • Throughput is a term used to describe the rate at which a company produces or processes its products or services.
  • The goal behind measuring the throughput concept is often to identify and minimize the weakest links in the production process.
  • Assumptions about capacity and the company's supply chain can affect throughput.
  • Maintaining high throughput becomes a challenge when different products are being produced using a combination of joint and separate processes.
  • Only products that are actually sold count toward throughput.
  • When a company can maximize its throughput, it can maximize its revenues.

Understanding Throughput

The idea of throughput, also known as the flow rate, is part of the theory of constraints in business management. The guiding ideology of this theory is that a chain is only as strong as its weakest link. The goal for business managers is to find ways to minimize how the weakest links affect a company's performance and to maximize throughput for the product's end users. Once throughput is maximized by removing inefficiencies, allowing inputs and outputs to flow in the most ideal manner, a company can reach revenue maximization.

A firm’s level of production capacity is closely related to throughput, and management can make several types of assumptions about capacity. If the firm assumes that production will operate continually without any interruptions, management is using theoretical capacity, but this level of capacity is not reachable. No production process can produce the maximum output forever because machines need to be repaired and maintained, and because employees take vacation days. It's more realistic for businesses to use practical capacity, which accounts for machine repairs, wait times, and holidays.

A company’s throughput also depends on how well the firm manages its supply chain, which is the interaction between the company and its suppliers. If for whatever reason, supplies are not available as an input to production, the disruption has a negative impact on throughput.

In many cases, two products may start in production using the same process, which means that the joint costs are allocated between each product. When production reaches the split-off point, however, the products are produced using separate processes. This situation makes it more difficult to maintain a high level of throughput.

Formula for Calculating Throughput

Throughput can be calculated using the following formula:

T = I/F

where:

T = Throughput

I = Inventory—the number of units in the production process

F = the time the inventory units spend in production from start to finish

Example of Throughput

Assume that ABC Cycles manufactures bicycles. The firm has procedures in place to maintain equipment used to make bikes, and it plans production capacity based on scheduled machine maintenance and employee staffing plans. However, ABC also needs to communicate with its suppliers for metal bike frames and seats because the suppliers need to deliver component parts when ABC needs them for production. If the parts don't arrive when ABC Cycles needs them, ABC's throughput will be lower.

Going further, ABC Cycles begins building more than one type of bicycle. It starts the production of mountain bikes and road bikes using a joint production process, and both bikes use the same bike frame and seat. Later on in the process, however, the production becomes separate because each bike model uses different tires, brakes, and suspensions. This makes production harder to manage since ABC must consider production capacity and supply chains in both joint and separate production processes.

Let's say that ABC Cycles has 200 bikes in inventory. The average time that a bike is in the production process is five days. The throughput for the company would be T = (200 bikes / 5 days) = 40 bikes a day.