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FRED QuickChart Macro Explorer
Visualize historical US macroeconomic indicators including GDP, Inflation, Unemployment, and Interest rates.
THE TOOLLINKS COLLECTION
Money & economics tools & calculators
Explore 21 tools for money & economics, with direct links to individual calculators and learning tools.
Choose the task you need. Each link opens the specific tool; check its methods and limitations before relying on a result.
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CPI & Inflation Calculator
Adjust monetary values for inflation over time using historical CPI tables or manual index inputs.
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Price Elasticity of Demand Solver
Calculate price elasticity of demand using the midpoint (arc) method and evaluate revenue impact.
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Linear Supply & Demand Equilibrium
Find market equilibrium price and quantity from linear supply and demand equations.
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Tax & Subsidy Incidence Calculator
Analyze how per-unit taxes or subsidies shift equilibrium price, quantity, tax burden, and deadweight loss.
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Consumer & Producer Surplus Solver
Calculate consumer surplus, producer surplus, and total surplus using linear demand and supply choke prices.
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GDP Components Calculator
Compute Nominal and Real GDP using the expenditure approach (C + I + G + NX) and evaluate component shares.
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Unemployment & Labor Market Calculator
Calculate unemployment rate, labor force participation, and employment-population ratios.
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Money Multiplier & Creation Solver
Calculate the deposit expansion multiplier under simple reserves or expanded currency/excess reserve leakage.
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Exchange Rate Triangular Arbitrage Checker
Identify if discrepancies between three currency cross rates create profitable risk-free arbitrage cycles.
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Lorenz Curve & Gini Coefficient Tool
Calculate the Gini coefficient of inequality and plot the Lorenz curve from text input or CSV files.
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NPV & IRR Project Evaluation Sheet
Evaluate investments using Net Present Value (NPV), Internal Rate of Return (IRR), and payback calculations.
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NetPayout
See what you keep from an invoice after payment fees, currency conversion, and reserves.
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Percentage & Margin Calculator
Calculate percentages, margins, and markups for everyday business and personal finance.
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Date Difference Calculator
Find the number of days, weeks, or business days between two dates.
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Invoice Tax Estimator
Estimate invoice totals with discounts, shipping, and sales tax.
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Loan Calculator
Calculate monthly payments, total interest, and payoff schedules for loans.
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Hourly to Project Price Calculator
Turn hourly rates into project quotes with buffers and profit margins.
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ROI Calculator
Measure return on investment with net gain, ROI percentage, and payoff timeline.
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Unit Converter
Convert between units of length, mass, volume, temperature, area, and pressure.
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Currency Converter
Convert between major world currencies using live exchange rates.