Free Financial Calculators & Tools

Investment & Return Calculators

Calculate your returns, plan your investments, and understand your gains.

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ROI Calculator

Calculate your return on investment instantly. See your profit percentage, annualized return, and total gains.

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Compound Interest Calculator

See how your savings grow over time with compound interest. Supports monthly contributions and different compounding frequencies.

Calculate Growth →

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FIRE Calculator

Plan your path to Financial Independence and Early Retirement. Find your FI number and timeline to freedom.

Plan My FIRE →

Tax & Pay Calculators

Understand your taxes, take-home pay, and capital gains.

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Capital Gains Tax Calculator

Estimate your capital gains tax on stocks, crypto, and real estate. Supports 2025 federal and state tax rates.

Estimate Tax →

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Salary to Hourly Calculator

Convert any salary to hourly, weekly, or monthly rate. Includes overtime and 50-state take-home estimates.

Convert Salary →

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Crypto Tax Calculator

Estimate your crypto capital gains tax. Supports short-term and long-term holdings with 2025 tax brackets.

Calculate Crypto Tax →

Mortgage & Loan Calculators

Plan your home purchase, understand your loan costs, and compare options.

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Commercial Mortgage Calculator

Calculate commercial mortgage payments, DSCR, and compare loan terms for investment properties.

Calculate Payment →

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Rent vs Buy Calculator

Should you rent or buy? Compare total costs over time including appreciation, tax deductions, and opportunity cost.

Compare Costs →

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Debt Payoff Calculator

Find the fastest way to pay off your debt. Compare avalanche vs snowball methods with extra payment options.

Plan Payoff →

Comparison Tools

Compare costs across cities and states to make informed relocation decisions.

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Cost of Living Calculator

Compare cost of living between any two U.S. cities. See salary equivalents, housing costs, and daily expenses.

Compare Cities →

About FinCalcPro

FinCalcPro is a collection of 10 free financial calculators covering investment returns, compound interest, retirement planning, tax estimation, mortgage payments, and cost-of-living comparisons. Every tool runs entirely in your browser — no server-side processing, no data collection, no signup.

What These Calculators Cover

Investment & Growth: ROI (with annualized CAGR), compound interest with configurable compounding frequency (daily to annual), and FIRE timeline based on your savings rate and withdrawal strategy.
Tax Estimation: Capital gains tax using 2025 federal brackets + state rates for all 50 states; crypto tax with short-term/long-term classification; salary-to-hourly conversion with take-home estimates per state.
Loans & Housing: Commercial mortgage with DSCR calculation; rent vs buy total-cost comparison including appreciation, tax deductions, and opportunity cost; debt payoff with avalanche vs snowball methods.
Cost Comparison: Side-by-side cost-of-living comparison between any two U.S. cities using BLS CPI data, including salary equivalent and housing cost breakdown.

Data Sources & Accuracy

Tax calculators reference 2025 IRS federal income tax brackets, standard deductions, and long-term capital gains rates. State tax rates are updated annually from state revenue department publications. Cost-of-living data is sourced from the Bureau of Labor Statistics Consumer Price Index. Mortgage calculations follow standard amortization formulas. All results are estimates — consult a tax professional or financial advisor before making decisions.

Privacy

Zero data leaves your browser. No cookies track your calculations. No analytics script watches what you type. The site is fully static — your inputs are processed by JavaScript on your device and never sent to any server.