What Is Throughput? Definition, Formula, Benefits, and Calculation

What Is Throughput?

Throughput, in business, 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 their lower throughput peers because high throughput generally indicates that a company can produce a product or service more efficiently than its 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.
  • When a company can maximize its throughput, it can also 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 company's level of production capacity is closely related to throughput, and management can make several types of assumptions about capacity. If the company 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 employees take vacation days. It's more realistic for businesses to use practical capacity, which accounts for machine repairs, wait times, and holidays.

Only products that are actually sold count toward throughput.

Factors Affecting Throughput

A company’s throughput also depends on how well the company 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 and Calculation of 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

Benefits of Knowing Throughput Time

Throughput time refers to the total amount of time that it takes to run a particular process in its entirety from start to finish. For example, a manufacturer can measure how long it takes to produce a product, from initial customer order to sourcing raw materials to manufacturing to sale.

Throughput time can be further broken down into components:

  • Processing time is how long all of the steps of producing a good or service take
  • Inspection time involves running quality control and monitoring finished goods
  • Move time includes how long it takes to transport, ship, and deliver items across the logistics chain
  • Queue time, or wait time, is computed as all idle time in between these other components.

Adding these together gives you the total throughput time. If you can identify areas where there are backlogs, bottlenecks, or slowdowns, company managers can address these and improve efficiency. Quicker throughput times increase return on investment (ROI) and profitability.

Throughput analysis is also a form of capital budgeting analysis, aiding companies in choosing which projects to undertake. Using throughput analysis, the entire company may be viewed as a single process.

How to Increase Throughput

Increasing throughput and decreasing throughput time are important goals for company managers. As such, there are several ways to help achieve this goal. One is to deploy real-time monitoring and data analysis of production processes, made easier with the help of technology. Applications that analyze throughput can quickly identify slowdowns or other anomalies so that they can be quickly addressed.

Another time-proven method is to use a standardized checklist of steps to follow in the process that must be ticked off every time. While this may seem tedious and redundant, studies have shown that committing to a checklist reduces errors and speeds up processes.

A third way, often used by companies in various industries, is to introduce a bit of competition among workers using a scorecard, where speed and efficiency are rewarded, and inefficiency is highlighted as a problem area.

Example of Throughput

ABC Cycles manufactures bicycles. The company 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 must also communicate with its metal bike frames and seat suppliers and get them to deliver these component parts when it requires them for production. If the parts don't arrive when ABC Cycles needs them, the company's throughput will be lower.

Going further, ABC Cycles begins building more than one type of bicycle. It starts the production of mountain 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, and 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.

What Is the Difference Between Throughput Time and Lead Time?

Both lead time and throughput time are important measures of operational efficiency. Lead time measures the entire period between a customer order and ultimate delivery. Throughput time, in contrast, only measures the time it takes to pass through processes to produce the good or service.

How Do You Calculate Throughput?

In corporate finance, throughput is generally measured as inventories divided by the time it takes to produce those inventories.

How Can One Find a Bottleneck in a Business Process?

Having a clear schematic of a production process allows you to monitor each step to look for bottlenecks. If there is a slowdown, parts can accumulate at the end of one specific step. Today, these can be identified by automated systems that monitor and report on production. Once identified, they can try to be resolved.

Article Sources
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  1. Lee, John C., et al. "Checklist-styled daily sign-out rounds improve hospital throughput in a major trauma center." The American Surgeon, vol. 80, no. 5, 2014, pp. 434-440.

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