Finance calculators
Finance tools project future value, inflation effects, and ratio-style metrics using the closed-form expressions on each page. Figures omit taxes, fees, and product-specific rules unless a page says otherwise.
Use these for illustration and homework-style checks, not as investment advice. Open a calculator for the exact rate convention and compounding assumption it applies.
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Finance
APY Calculator
Convert nominal APR and compounding frequency into annual percentage yield.
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Finance
Cash Flow to Debt Ratio Calculator
Measure operating cash flow relative to total debt.
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Finance
Cash Ratio Calculator
Compare cash and cash equivalents to current liabilities.
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Finance
Certificate of Deposit Calculator
Estimate CD maturity value with compound interest (workbook: Certificate of Deposit).
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Finance
Compound Annual Growth Rate (CAGR) Calculator
Average annual growth rate between a start and end value.
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Finance
Compound Interest Rate Calculator
Solve for the nominal rate that grows principal to a future value.
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Finance
Current Ratio Calculator
Assess short-term liquidity: current assets ÷ current liabilities.
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Finance
DCA Investment Calculator
Future value of regular fixed deposits (DCA).
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Finance
Debt Payoff Calculator
Months and interest to clear a balance at a fixed payment.
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Finance
Dividend Calculator
Compute annual dividend income and yield from shares owned.
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Finance
Dividend Discount Model Calculator
Value a stock from next year's dividend, required return, and growth (Gordon model).
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Finance
Dividend Payout Ratio Calculator
See what share of net income is paid out as dividends.
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Finance
EBITDA Calculator
Estimate earnings before interest, taxes, depreciation, and amortization.
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Finance
Earnings per Share (EPS) Calculator
Compute basic EPS (workbook name: Earnings per Share (EPS)).
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Finance
Effective Interest Rate Calculator
Effective annual rate from a nominal rate and compounding frequency.
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Finance
Equivalent Annual Rate (EAR) Calculator
Equivalent annual rate (EAR) from nominal rate and compounding.
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Finance
Expense Ratio Calculator
Fund expense ratio as annual expenses over average assets.
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Finance
Expense Ratio Calculator (Cost of ETF)
Estimate the dollar cost of an ETF expense ratio over time.
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Finance
Forward Rate Calculator
Implied forward rate between two spot-rate maturities.
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Finance
Future Value Calculator
Project how a present amount grows at a periodic rate.
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Finance
Inflation Calculator
See future nominal value and today's purchasing power after inflation.
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Finance
Investment Calculator
Project future value of a principal with regular deposits and compound growth.
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Finance
Loan Comparison Calculator
Compare payments and totals for two loans.
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Finance
Net Profit Margin Calculator
Net profit margin from net income and revenue.
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Finance
Refinance Break-Even Calculator
Months until closing costs are recovered by payment savings.
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Finance
Return on Ad Spend (ROAS) Calculator
Measure revenue generated per dollar of ad spend (workbook: Return on Ad Spend (ROAS)).
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Finance
Return on Investment (ROI) Calculator
Calculate ROI as percent gain relative to cost (workbook: Return on Investment (ROI)).
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Finance
Rule of 72 Calculator
Years to double at a constant annual rate.
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Finance
Salary Calculator
Break an annual salary into monthly, biweekly, weekly, and hourly pay.
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Finance
Salary to Hourly Calculator
Convert annual salary to an equivalent hourly wage.
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Finance
Sales Tax Calculator
Compute sales tax and total price from a pre-tax amount.
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Finance
Savings Goal Calculator
Monthly deposit needed to reach a goal.
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