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Free Financial Calculators for
Paycheck, Tax, Mortgage, and More

Fast, accurate tools for salary, taxes, loans, savings, and everyday money decisions.

Calculate take-home pay, convert between hourly and annual salary, and estimate overtime — using current federal, state, and FICA rates. Every calculator supports all 50 states.

Estimate federal and state taxes — income, capital gains, self-employment, and sales — with current bracket data and per-state coverage. Updated for the One Big Beautiful Bill Act.

Project the long-term growth of retirement, brokerage, and savings accounts — accounting for compound interest, employer match, dividend reinvestment, and inflation.

Estimate monthly mortgage payments, see how much house you can afford, compare renting versus buying, and track home equity — all with current rate assumptions.

Estimate monthly payments and total interest across auto, personal, student, and credit card balance transfers — and view a full amortization schedule for any loan.

Track net worth, plan debt payoff, compare cost of living between cities, see how inflation has eroded the dollar, and run quick everyday financial math.

State Tax & Paycheck Calculators

Calculate take-home pay, income tax, and sales tax by state. Browse all state calculators or choose a state from the calculator pages.

For finance bloggers & publishers

Drop a calculator into your post.

Every CalcSystems calculator embeds with a simple iframe. Copy the snippet, paste it into your article, and we keep the calculator current.

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Transparent formulas, reviewed sources, and clear assumptions

Every financial calculator shows the formulas, assumptions, and source references it uses. Tax and payroll calculators are reviewed against the latest federal and state data. Savings and loan calculators explain the math behind each result so the output can be verified — not just trusted.

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