Market Size: How to Calculate and Use It

Market size is one of the key indicators in marketing research. It is calculated by entrepreneurs who are just starting to launch their own businesses. For experienced businesspeople, it helps plan production and sales, attract investment, and explore new avenues. Without taking market capacity (Addressable Market) into account, it is impossible to draw up an effective business plan, determine the number of potential customers, or assess competitiveness in a specific niche. By understanding this metric and how it changes over time, you can assess the viability of addressing specific business challenges. This article compiles useful information on what market size is, how to calculate it (with examples), and where to apply the resulting figures.

What Is Market Capacity?

Market capacity is the total volume of goods or services that consumers are willing to purchase or order over a given period of time. These figures help entrepreneurs assess the business’s prospects: how much profit can be made and whether it is worth investing in this venture.

There are various approaches to determining market size (AM). Marketing research typically relies on four key indicators:

1. Potential Available Market. Indicates the maximum quantity of a product that can be sold. This is a theoretical figure calculated, for example, for new market niches.
2. Total Addressable Market (TAM). This includes all potential sales. In fact, market capacity is most often associated with this metric.
3. Actual Market Capacity (Serviceable & Obtainable Market). Refers to the amount of product that is actually sold. Data from past periods is used to calculate this figure. For example, for a half-year or 12 months. This metric is essential for sales planning.
4. Serviceable Available Market (SAM). This indicates the volume of goods that a specific company can sell. Even if a business is actively growing and expanding its geographic presence, only a portion of the market is accessible to it during a given period. Some customers are not yet aware of the brand, while others prefer competitors’ products. It is standard practice to calculate the serviceable available market (SAM) separately for each niche or business.

Detailed information is particularly useful for marketers who delve deeply into the subject. For most aspiring entrepreneurs, however, it can be significantly simplified and boiled down to an understanding of the key points. AM is a virtual metric. It helps determine how many goods or services can be sold in a specific geographic region. Using it allows you to calculate in advance the feasibility of launching a business (prospects for profitability, achieving set goals) or opening a new line of business within an existing system.

See also: Sales Scripts: Benefits for Businesses

Why Define the Addressable Market?

To an optimistic entrepreneur, any idea may seem promising. However, without careful calculations, such euphoria often leads to serious financial problems. Determining market capacity helps:

1. Assess the demand for a new product (goods or services). These calculations help determine how many people are potentially willing to make a purchase. Based on this data, you can decide whether to invest in the product or abandon the idea.
2. Identify the target audience. When researching the issue and gathering information, it is important to consider which consumer group to focus on. Sometimes a product intended for one group (health-conscious consumers) turns out to be more appealing to another (athletes and active lifestyle enthusiasts).
3. Assess the competitive landscape. As you gather information, you’ll learn how many companies are already operating with the same or a similar product. It’s worth considering how serious your intentions are or starting to look for effective ways to outmaneuver your competitors to avoid low demand.
4. Decide whether to expand the business. By assessing the market capacity, you can estimate the financial benefits of the planned initiative. If the benefits are minimal and the risks are high, it may not be worth it.

Entrepreneurs use market capacity analysis primarily to assess whether their investment in the business will pay off and what level of profit they can expect.

Where to Find Data for Defining the Addressable Market

Market size is estimated using data obtained from various sources. The key factor is the accuracy of that data. That is why the source of information must be reliable. We recommend using:

• tables from the State Statistics Service;
• internal company data;
• announcements from government agencies;
• marketing research conducted by third-party organizations;
• presentations and reports from entities;
• data on competitors obtained through analysis (sales, prices, marketing strategies);
• statistical data from international organizations (such as the UN);
• publications in specialized journals;
• surveys of experts and salespeople;
• other public and corporate sources.

Trends in consumer market size provide accurate information about its growth or decline, which is important for making key business decisions. For example, a company’s management is planning to expand. However, AM data shows that the market is shrinking. In this case, the company should either abandon its expansion plans or explore new business areas or geographic markets.

See also: How to Increase the Average Check

How to Calculate Market Size

Various methods are used to determine market capacity in order to obtain the necessary data. For example, the “bottom-up” or “top-down” approaches. However, there is also a method based on actual sales, which is considered the most accurate. A combined approach can also be used. It combines the approaches of these two popular methods. Below, we’ll examine the characteristics and formulas of each of the basic methods, along with calculation examples.

The “bottom-up” method, or calculation based on average consumption levels

This method of determining market capacity and market share is considered the simplest, but it is inaccurate. The formula uses only two metrics: the total number of potential customers and the average volume of product consumed per customer. This is the potential market capacity—the formula looks like this:

Market size (total sales volume) = Target audience size * Consumption rate

The result of the calculation will be displayed in units. If you need the figures in monetary terms, use the following formula:

Market Size (Total Sales Volume) = Target Audience Size * Consumption Rate * Unit Price

When using the market capacity data in the formulas provided above, there is one important detail to keep in mind. To ensure maximum objectivity, additional factors must be taken into account, such as restrictions by region, point of sale, product price category, and so on.

The “top-down” method, or AM, based on data from its participants

In this method, determining market size and segmenting the market are closely linked. Through these calculations, it is possible to obtain a more accurate figure by using specific data (sales within a niche). Not all companies are willing to share commercial information. However, data can be obtained from public sources where companies report their activities to the government. It is best to analyze information on 3–5 industry leaders (whose combined market share typically accounts for 70–80%) rather than attempting to gather data on all market participants. The calculation formula is as follows:

Market Size = Total Retail Sales in the Niche

Additional factors to consider: inventory levels, government reserves, exports and imports, product obsolescence, and alternative ways of meeting needs (e.g., substitute products).

The Actual Sales Method

To calculate it, you need to collect data on actual sales of goods and services over a specific period. The market capacity formula in this case is as follows:

Market Size = Total Sales of the Business

To obtain objective information, it is best to use data covering a full year. It is also important to take into account seasonal sales patterns.

There are various methods for estimating volume, depending on the initial data, but they all provide valuable insights into potential sales. Increase your target audience’s engagement and motivate your partners to be more active. Use information about eDilo service — We offer installment payment plans for businesses on favorable terms.

In addition to formulas and detailed descriptions of popular methods for calculating market size, the examples below help you understand the numbers more clearly. You can find them below.

Examples of Market Size Calculations

Once you have gathered the necessary information, you can proceed to the calculations. You should choose the method that seems most appropriate, or perform the calculations using each method, and then compare and analyze the results.

An example of the “bottom-up” method

The Yagotinsky Plant plans to expand production to serve the city of Zhytomyr (population 261,000). Average milk consumption is 50 liters per person per year. The price of a 1-liter bottle is 56 UAH.

AM (L) = 261,000 × 50 = 13,050,000.

AM (UAH) = 261,000 × 50 × 56 = 730,800,000.

An example of the “top-down” method

There are three leading cement manufacturers in Ukraine: “HeidelbergCement Ukraine,” “Ivano-Frankivskcement,” and “Pivdencement.” Last year, each of them earned:

• “HeidelbergCement Ukraine”: 6.52 billion UAH.
• “Ivano-Frankivskcement”: 5.85 billion UAH.
• “Pivdencement”: 4.83 billion UAH.

To determine the market size, simply add up all the values.

AM for the period = (6.52 + 5.85 + 4.83) billion UAH = 17.2 billion UAH.

The result reflects actual demand from buyers, since the calculations are based on actual data.

Example of the Actual Sales Method

Sumykhimprom sold 500,000 metric tons of phosphate fertilizers over the course of the year. In this specific case, AM will be equated to this figure.

When choosing methods for calculating market size, it is important to keep in mind that this is not an exact science, but rather a forecasting method based on statistical data. However, these methods are worth considering if a systematic approach is applied. This requires regularly reviewing your forecasts and adapting your business model to market changes.

Conclusion

Any estimate of market size is approximate. However, without it, it is impossible to draw up an effective business plan or scale up a business. To obtain accurate data, avoid common mistakes. These include:

• overestimation of the target audience;
• incorrect assessment of the geographic component;
• serious violations during the analysis of the competitive environment.

Since the data obtained from these calculations should be considered approximate, take the initiative and successfully boost sales despite the forecasts. Motivate potential customers to make quick purchases with eDilo. Our Service Designed for businesses that understand the advantages and benefits of paying in installments. We offer transparent terms of service and quick sign-up. With eDilo, it’s cost-effective, convenient, and secure.

FAQ

What is the difference between current (actual) and potential market capacity?

Potential capacity (PAM) indicates the potential: how much product can be sold over a specific period of time. Actual capacity (SOM) provides an understanding of how much is actually sold, based only on previous periods.

What strategic decisions can be made based on an analysis of market capacity?

Based on capacity data, you can make decisions about launching a business or whether to expand it, plan production volumes, and set clear goals for improving the brand’s competitiveness.

How does market size influence the development of new products and services?

Without assessing the sales prospects for new products or services, there is no point in investing funds. Information about market capacity provides insight into whether potential buyers need the product or service, how much interest there is in it, and what profit the business can expect.

How might technological progress affect changes in market capacity?

Technological progress can have a significant impact on sales volumes—both positive and negative. On the one hand, it can increase demand for goods and services and create new sales channels. On the other hand, it can cause products to become obsolete quickly, making it necessary to replace them with more modern ones.