Capacity utilization rate definition

What is the Capacity Utilization Rate?

The capacity utilization rate is the proportion of the production capacity of a business or economy that is currently in use. For example, when an organization has a capacity utilization rate of 80%, it means that the firm is currently operating at 80% of its theoretical capacity. This information can be useful for determining how much capacity is available to deal with spikes in demand.

When viewed from the perspective of an entire economy, the capacity utilization rate measures the potential amount of slack in the economy. When the utilization rate is low, it implies that the economy can easily absorb significant increases in growth. The economy must grow enough to absorb this slack before there is any incentive for capital investments to be made.

How to Calculate the Capacity Utilization Rate

The formula for the capacity utilization rate is to divide actual output by theoretical output, and then multiply the result by 100. The formula is as follows:

(Actual output / Theoretical output) x 100 = Capacity utilization rate

Example of the Capacity Utilization Rate

International Automation produces industrial robots. The company has sufficient production capacity to manufacture 100 robots per month. During December, the company was only able to produce 68 robots, which represents a 68% capacity utilization rate (calculated as 68 robots ÷ 100 robots capacity). This issue was caused by the lack of parts for the robots, which were delayed due to an inbound shipping problem. We can also infer the amount of slack capacity, which is the inverse of the 68% capacity utilization rate, or 32%.

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Disadvantages of the Capacity Utilization Rate

The capacity utilization concept can be misleading from several perspectives. First, a firm should only produce as many products as are immediately needed; any additional use of capacity is only going to result in unneeded products that will be stored as inventory, resulting in unnecessary inventory holding costs and the risk of obsolete inventory. Second, the measure is based on a theoretical capacity level that is unsustainable over the long term, since downtime is needed for repairs and maintenance.

Capacity Utilization Best Practices

A better view of the capacity utilization rate is to focus it solely on the bottleneck operation of a business. The firm cannot generate any additional throughput unless this one operation is properly managed to achieve the highest possible utilization rate. Focusing on the capacity utilization of any other work center in a business is actually counterproductive, since doing so creates an inherent incentive to increase its usage, even when it is not necessary to do so.

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