Economics demo
Cost Curves Calculator
Explore how fixed and variable costs change as resource use and production output increase. Edit the production grid to compare total, average fixed, average variable, and average total costs.
SpreadsheetWeb application example
About this cost curves application
In microeconomics and business analysis, costs rarely increase in a straight line with output. Understanding how fixed, variable, average, and total costs behave across production levels is key for evaluating efficiency and decision-making.
This live example preserves the formulas in the published SpreadsheetWeb workbook while replacing its embedded interface with an accessible, responsive browser experience.
Live economics model
Build and compare your cost curves
Set the unit and fixed costs, then edit the resource and production levels in the grid. Every valid change recalculates the published workbook automatically.
The information provided by this calculator is intended for informational and educational purposes only. The default figures shown are hypothetical and may not be applicable to your individual situation. We are not responsible for the consequences of decisions or actions taken in reliance upon the information provided by this tool.
Cost curve concepts
What the calculator shows
The workbook separates costs that remain fixed from costs that rise with each additional resource unit, then compares both against the production output entered in the grid.
Fixed cost remains constant across production levels. Variable cost equals the resource level multiplied by its unit price.
Total cost combines the fixed and variable components for each resource level.
AFC, AVC, and ATC divide each cost measure by the corresponding product or service output.
The highlighted resource is the row where average total cost reaches its minimum in the published model.
Practical applications
Use cost curves to compare production scenarios
- Economics educationExplore the relationship between inputs, output, and per-unit cost.
- Business analysisModel production costs and identify the most efficient row in a scenario.
- Operations planningCompare how changing resource prices or fixed overhead affects scale.
- Policy researchIllustrate cost structures without distributing the underlying workbook.