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Marginal Cost Calculator

Marginal Cost Calculator

The free marginal cost calculator allows you to calculate the investment costs for additional units or products manufactured.


Change in Total Cost:


Change in Quantity:


Current Cost:


Future Cost:


Current Quantity:


Future Quantity:


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An online marginal cost calculator helps you to compute the cost of manufacturing the additional items. If you have no idea about the total change in cost and quantity, then you are not able to find the margin cost with the marginal cost formula. But, if you know current and future cost and quantity, then substitute these values in this calculator it will provide you the marginal cost quickly. Read on to understand how to find marginal cost using its formula and the change in cost and quantity.

What is Marginal Cost Definition?

Marginal cost defines the additional cost of producing each additional unit. For instance, it may cost two hundred rupees to make five cups of Tea. To make another would cost 40 rupees. Hence, that is the marginal cost, the additional cost for producing one extra unit of tea or output.

The marginal cost comes from production costs, including fixed costs and variable costs. In the case of fixed costs, these are computed in marginal costs when production needs to be expanded. On the other hand, variable costs are always included in marginal costs.

Importance of Marginal Cost:

Marginal costs are important in several businesses because they can help companies to maximize profits. If the marginal cost equals the marginal revenue, then we get the profit maximization. Therefore, the cost of manufacturing additional products is exactly equal to the company’s revenue from selling the products. In other words, the company is no longer making money at this time.

As companies benefit from economies of scale, marginal costs begin to decrease. However, with the decline in company productivity and the impact of economies of scale, marginal costs may start to increase. At this time, the expenditure increases, and finally meets to the marginal revenue.

This may be as a result of the company becoming too large and inefficient, or due to management issues that lead to insufficient staff energy and low productivity. Whatever the reason, when the company’s revenue equals the marginal cost, the company may face rising costs and be forced to stop production.


However, An Online Income Tax Calculator helps to estimates the refund or potential owed amount.

Marginal Cost Formula:

Marginal cost can be calculated by dividing the change in total cost by the change in quantity. Let us say that company X is producing five hundred units of masks at the cost of 10000 rupees. The company then manufactures an additional one hundred units for 5000 rupees. So the marginal cost change in total cost, which is 5000 rupees. And divided by the change in quantity, which are the additional one hundred units of masks. That gives us: 5000/100, which equals 50 rupees per unit as the marginal cost. So the formula which is used by the marginal cost calculator is:

Marginal cost = change in total costs ($) / change in quantity

How to Calculate Marginal Cost?


Assad owns a sweet bakery in London. He has many fixed costs, such as the cost of renting and buying machinery, boxes, and other equipment. And he has many variable costs such as employees, raw materials, and utility bills.

In the 1st year of the bakery, his total costs amount to 2 lac pounds, which include one lac and fifty thousand pounds of fixed costs and only fifty thousand of variable costs. He manages to sell seventy thousand goods, making five lac pounds in revenue.

In the second year of bakery, total costs increase to 2.5 lac pounds, which include one lac and eighty thousand pounds of fixed costs and seventy thousand pounds of variable costs. He manages to sell 125,000 goods, making 800,000 pounds in revenue.

So, the fixed costs surge because new machinery and equipment are needed to expand the production of goods. The variable costs surge due to more material and employees are needed. These combined costs are increasing in the costs of 20,000 pounds. On the other side, the number of items sold and produced increases by 45,000. The marginal cost can be calculated with the marginal cost formula in which divide the additional cost (20,000 pounds) by the rise in quantity (45,000), to find the cost of 2.25 pounds per unit. The marginal cost calculator provides the same cost per unit when you plug the same values in the fields of change in total cost and change in quantity.

However, the Price Elasticity of Demand Calculator used the simple price elasticity of demand formula to measure the PED within a couple of seconds.

What is Change in Cost?

At each production level, the total production cost can be increased or decreased according to whether the output needs to be increased or decreased. To calculate the change in total production cost by marginal cost equation, simply subtract the initial production cost of the first batch from the production cost of the next batch as the output increases.

For example, A Company “M” produces 100 cars that cost $200,000 each, bringing the total cost to $20,000,000 or $20 million for short. If the company then goes on to create 120 more cars – costing them $22 million, we need to calculate the difference between the total costs after ($22 million) and minus from the initial cost ($20 million), the change in the total cost of cars is ($2 million).

What is Change in Quantity?

Inevitably, the output will increase or decrease according to the production level. A decrease or increase in production will be converted into the COGM(costs of the goods manufactured).

To determine the quantity change, subtract the number of goods produced in the first production cycle from the volume of output produced in the next production cycle.

For example, if there were five thousand pairs of shoes made by a company “F” in the first production run but six thousand pairs more needed to be made, you could find the difference in quantity by subtracting the number of items produced in the first production cycle from the volume of items produced in the next production cycle.

How Marginal Cost Calculator Works?

An online marginal cost function calculator that determines the marginal cost in two different ways:

If Change Value Known:


  • Enter the change in total cost and change in quantity.
  • Hit the calculate button to find the marginal cost.


  • The marginal cost calculator displays the marginal cost and a step-by-step solution with the chart.

If Change Value Unknown:


  • Enter Current and future cost and quantity.
  • Click on the calculate button.


  • The calculator finds the total change in cost and quantity.
  • It uses these values to calculate the marginal costs and display a pi chart.


What is the difference between marginal cost and marginal revenue?

Marginal cost (MC) is the amount paid for generating one more unit of a particular item. The marginal revenue (MR) refers to the money earned from the sale of one more unit of an item.

What is marginal factor cost?

Marginal factor cost (MFC) is the increase in the total cost paid by the factors of production, which is due to the increase in the number of factors used by a unit. It is expressed in currency units per incremental unit of factors of production, such as labor per unit of time.

What is marginal resource cost?

The marginal resource cost is the additional cost of using another unit of the input. It is calculated by dividing the change in total cost by the change in the number of inputs.


The marginal cost calculator determines the cost or amount of the additional items produced. The purpose of marginal cost analysis is to determine when a company can achieve economies of scale to optimize overall production and operations. If the marginal cost of manufacturing additional units is less than the unit price, the manufacturer can make a profit.


From the source of Wikipedia: Short-run marginal cost, Long-run marginal cost, Cost functions and relationship to average cost, Empirical data on marginal cost.

From the source of Investopedia: What Is the Marginal Cost of Production, Example of Marginal Cost, Economies of scale, Perfectly competitive supply curve.

From the source of Lumen Learning: Types of Costs, Total Cost, Variable Costs, Fixed Costs, Economic Cost, Average and Marginal Cost, Relationship Between Average and Marginal Cost.