Free Budget Line Equation Calculator - Solves for any one of the 5 items in the standard budget line equation:
Income (I)
Quantity of x = Q_x
Quantity of y = Q_y
Price of x = P_x
Price of y = P_y

Free Commission Calculator - Calculates a commission amount based on a base amount, and a first and second level tier amount.

Free Equation of Exchange Calculator - Solves for any of the 4 variables in the Equation of Exchange: money, velocity, price, quantity

Free GDP Deflator Calculator - Calculates the GDP Deflator using nominal and real GDP

Free Gross Domestic Product (GDP) Calculator - Solves for all items of the Gross Domestic Product (GDP) equation:
GDP
Consumption (C)
Investment (I)
Government Spending (G)
Exports (X)
Imports (I).

Free Herfindahl Index Calculator - Given a market share of a set of companies, this determines the Herfindahl Index and Normalized Herfindahl Index.

Free Income Elasticity of Demand Calculator - Calculates the income elasticity of demand using demand changes and income changes. Inputs are demand 1 and demand 0 and income 1 and income 0.

Free Money Multiplier Calculator - Given a reserve ratio and initial deposit amount, this calculates the money multiplier and displays the re-lending process table for a bank to other banks including reserves and loans.

Free Price Calculator - Given a cost and a gross margin percentage, this calculator calculates price, gross profit, markup percentage

Free Profit Equation Calculator - Using the Profit Equation with inputs (Revenue-Cost-Profit-Tax), this determines the relevant output including gross proft, gross profit margin, net profit, and net profit margin.

Free Sales Price Variance Calculator - Calculates the Sales Price Variance and Total Variance for a group of products

Free Sectoral Balance Calculator - Solves for any of the 6 inputs in the Sectoral Balance equation by Wynne Godley

Free Total Revenue Calculator - Given a quantity, price, and item, this calculates the total revenue.

Free Trade Cost Calculator - Calculates the saved hours under the electrician/carpenter model of specializing in jobs as well as opportunity cost.

Free Utility and Cost Utility Ratio Calculator - Given 2 methods with a set of utilities and weights/probabilities, this will calculate the utility for each method, as well as the total utility using the additive method, as well as the Cost Utility Ratio