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Investing Calculators — Finance

Compound interest, ROI, dividend yield, dollar-cost averaging, and portfolio return calculators. Each investing tool shows the formula and the year-by-year breakdown, with methods drawn from standard financial mathematics rather than guesswork.

All Investing Calculators

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Backdoor Roth IRA Calculator

Calculate the tax implications and benefits of a backdoor Roth IRA conversion strategy.

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Bond Duration Convexity Calculator

Calculate bond duration convexity with inputs, formulas, and instant results.

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Bond Price Calculator

Calculate bond price with inputs, formulas, and instant results.

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Bond Yield Calculator

Calculate current yield, yield to maturity, and yield to call for fixed income investments.

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Bond Yield to Maturity Calculator

Calculate bond yield to maturity with inputs, formulas, and instant results.

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CAGR Calculator

Calculate cagr with inputs, formulas, and instant results.

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Cap Rate Calculator

Calculate cap rate with inputs, formulas, and instant results.

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Car Vs Bike Calculator

Compare the total cost, time, and environmental impact of driving versus cycling.

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Cash on Cash Return Calculator

Calculate cash on cash return with inputs, formulas, and instant results.

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Compound Daily Interest Calculator

Calculate compound interest with daily compounding for savings and crypto staking.

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Covered Call Calculator

Calculate covered call returns from stock price, strike, premium, and expiration.

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DCA Investment Calculator

Project the future value of recurring investments using dollar-cost averaging with year-by-year portfolio growth and total gains.

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Dividend Calculator

Calculate dividend with inputs, formulas, and instant results.

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Dividend Growth Calculator

Project future dividend income from current yield, growth rate, and reinvestment.

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Dividend Reinvestment Calculator

Calculate the growth of an investment with dividends automatically reinvested over time.

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Dollar-Cost Averaging vs Lump Sum Calculator

Compare dollar-cost averaging against lump-sum investing side by side at different expected growth rates and volatility levels.

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DSCR Calculator

Calculate the debt service coverage ratio by comparing net operating income to total debt obligations for loan qualification and investment analysis.

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Employee Provident Fund (EPF) Calculator

epf calculator. Get instant, accurate results.

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ETF Expense Ratio Impact Calculator

See how ETF expense ratios erode returns over 10, 20, and 30 year holding periods.

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Fire Calculator

Calculate fire with inputs, formulas, and instant results.

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HSA Investment Calculator

Project HSA investment growth as a triple-tax-advantaged retirement vehicle.

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I Bond Calculator

Calculate Series I savings bond interest from fixed rate, inflation rate, and holding period.

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Index Fund Calculator

Project long-term index fund returns with monthly contributions and expense ratio impact.

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Internal Rate of Return (IRR) Calculator

Calculate IRR for any series of cash flows and compare against your hurdle rate with NPV sensitivity analysis.

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Investment Return Calculator

Calculate investment return with inputs, formulas, and instant results.

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Lump Sum Vs DCA Calculator

Compare investing a lump sum today versus dollar cost averaging over time.

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Margin Trading Calculator

Calculate buying power, margin requirements, and interest costs for margin trading.

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Mutual Fund Calculator

Calculate mutual fund with inputs, formulas, and instant results.

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Net Present Value (NPV) Calculator — Step-by-Step

Walk through NPV computation step by step with detailed intermediate results, present-value breakdowns, and sensitivity tables.

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NOI Calculator

Calculate net operating income by subtracting operating expenses from gross rental income to evaluate real estate investment profitability.

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NPS Calculator

nps calculator. Get instant, accurate results.

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Options Profit Calculator

Calculate options profit with inputs, formulas, and instant results.

P/E Ratio Calculator

Calculate pe ratio with inputs, formulas, and instant results.

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Portfolio Rebalance Calculator

Enter current and target allocations for stocks, bonds, and cash to see exact buy/sell amounts, drift, and turnover.

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Portfolio Rebalancing Calculator

Rebalance your portfolio while directing new cash contributions to underweight assets first, minimizing unnecessary sells.

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Public Provident Fund (PPF) Calculator

ppf calculator. Get instant, accurate results.

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Put Selling Calculator

Calculate cash-secured put returns and break-even price from strike, premium, and margin.

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Real Return Calculator

Calculate inflation-adjusted (real) investment returns from nominal returns and inflation rate.

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Reits Dividend Calculator

Estimate income from REIT investments based on share price, dividend yield, and reinvestment.

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Sector Allocation Calculator

Allocate your portfolio across market sectors and calculate expected risk-adjusted returns.

Sharpe Ratio Calculator

Calculate sharpe ratio with inputs, formulas, and instant results.

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Short Selling Calculator

Estimate profit or loss from short selling including borrow fees and margin requirements.

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Stock Average Down Calculator — Cost Basis Tool

Calculate the average price per share after multiple stock purchases at different prices.

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Stock Profit Calculator

Calculate stock profit with inputs, formulas, and instant results.

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Systematic Investment Plan (SIP) Calculator

sip calculator. Get instant, accurate results.

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Tax Loss Harvesting Calculator

Calculate potential tax savings from harvesting investment losses against capital gains.

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Treasury Bill Calculator

Calculate T-bill discount yield, investment yield, and purchase price from face value.

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Average Return

Compute arithmetic and geometric average returns on investments to measure portfolio performance over multiple periods

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Bond Calculator

Price bonds, compute yield to maturity, and analyze coupon payments to evaluate fixed-income investment opportunities

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Future Value

Project the future worth of a lump sum or recurring contributions at a given interest rate to set realistic savings and investment targets

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Investment Calculator

Project how your investments grow over time with contributions, compound interest, and adjustable return rates to plan your financial future

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IRA Calculator

Model traditional IRA growth with annual contributions, employer matches, and tax-deferred compounding to plan your retirement savings

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Lumpsum Calculator

Estimate the future value of a one-time lump sum investment at a given return rate and time horizon for goal-based planning

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Net Promoter Score (NPS) Driver Analyzer

Calculate NPS from customer survey responses and analyze drivers of loyalty with promoter/detractor breakdown

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Nonprofit Donation Impact & Allocation Planner

Plan nonprofit budget allocation across programs and calculate cost per beneficiary with overhead analysis

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PPF Calculator

Project your Public Provident Fund maturity amount with yearly contributions, compounding interest, and tax-free returns over 15 years

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Roth IRA Calculator

Project your Roth IRA balance at retirement with annual contributions, expected returns, and tax-free growth assumptions

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SIP Calculator

Estimate returns from regular monthly investments through a Systematic Investment Plan, with projected corpus and wealth gained over time

About Investing Calculators

Compound interest, ROI, dividend yield, dollar-cost averaging, and portfolio return calculators. Each investing tool shows the formula and the year-by-year breakdown, with methods drawn from standard financial mathematics rather than guesswork.

Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common investing scenarios. All results are computed in your browser — no data is sent to any server.

What You Can Calculate

This section includes 58tools: Backdoor Roth IRA Calculator, Bond Duration Convexity Calculator, Bond Price Calculator, Bond Yield Calculator, Bond Yield to Maturity Calculator, CAGR Calculator, Cap Rate Calculator, Car Vs Bike Calculator, and 50 more. Each calculator is free to use with no signup required.