How it works
Calculate Gross Domestic Product using the expenditure approach (C + I + G + NX).
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
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?consumption=Consumption (C)Number · Optional · Default: 14,000
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?investment=Investment (I)Number · Optional · Default: 4,000
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?government=Gov Spending (G)Number · Optional · Default: 3,500
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?exports=Exports (X)Number · Optional · Default: 2,500
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?imports=Imports (M)Number · Optional · Default: 3,000
Outputs
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resultResultText · Primary output
result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.
Calculate Gross Domestic Product using the Expenditure Approach
Description
The GDP Calculator is a macroeconomics tool used to determine the Gross Domestic Product (GDP) of a region or nation. GDP represents the total market value of all final goods and services produced within a country’s borders in a specific time period. This tool utilizes the Expenditure Approach, which is the most common method for measuring economic activity.
Inputs
- Consumption (C): Total spending by households on goods and services (e.g., food, rent, cars).
- Investment (I): Spending by businesses on capital goods (e.g., machinery, software, new buildings).
- Government Spending (G): Total spending by all levels of government on goods and services.
- Exports (X): The value of goods and services produced domestically but sold to other countries.
- Imports (M): The value of goods and services produced abroad but purchased by domestic consumers.
Outputs
- Gross Domestic Product: The final economic total.
- Net Exports: The difference between what a country sells (X) and what it buys (M).
Chart
- N/A: This tool provides direct numeric economic results.
“Good to Know”
- The Equation: The standard formula used is $GDP = C + I + G + (X - M)$.
- Trade Deficit: If imports (M) are greater than exports (X), the “Net Exports” figure will be negative, which subtracts from the total GDP.
- Nominal vs. Real: This tool calculates Nominal GDP, which is based on current market prices. To find “Real GDP,” economists adjust these numbers for inflation.
Examples
Example 1: Small Balanced Economy
- Input: C: 500, I: 100, G: 150, X: 50, M: 50
- Output: $750 (Net Exports: $0)
Example 2: Export Heavy Economy
- Input: C: 1000, I: 200, G: 300, X: 500, M: 100
- Output: $1,900 (Net Exports: $400)
Example 3: Importing Nation
- Input: C: 2000, I: 400, G: 600, X: 200, M: 500
- Output: $2,700 (Net Exports: -$300)