All calculators
Search or filter by category to find the right tool.
★ Popular
Rental Property Calculator
Full rental property pro-forma — cash flow, NPV, and before/after-tax IRR with financing, depreciation, taxes, and a hypothetical sale.
Debt Snowball vs. Avalanche Calculator
Compare payoff order strategies across multiple debts to see which saves the most interest.
Black-Scholes Option Pricing Calculator
Price a call or put and see all five Greeks under the Black-Scholes model.
Cash-Secured Put Calculator
See your yield on collateral, breakeven, and effective cost basis if assigned.
Home Affordability Calculator
Find the maximum home price you can likely afford before you start shopping.
Electricity Cost Calculator
See what it costs to run a single device per day, month, and year based on its wattage and your electricity rate.
Investing
59Options13
Black-Scholes Option Pricing Calculator
Price a call or put and see all five Greeks under the Black-Scholes model.
Implied Volatility Calculator
Back out the volatility a quoted option price implies, plus the Greeks at that volatility.
Covered Call Calculator
See your return if called away, return if unchanged, breakeven, and annualized yield.
Cash-Secured Put Calculator
See your yield on collateral, breakeven, and effective cost basis if assigned.
Options Profit/Loss Calculator
Chart profit and loss at expiration for any single- or multi-leg options position, with exact breakevens.
Probability of Profit (POP) Calculator
Estimate the odds an options position finishes profitable at expiration, for any single- or multi-leg strategy.
Iron Condor Calculator
Probability of profit, max risk/reward, and breakevens for a 4-leg iron condor.
Straddle/Strangle Calculator
Breakevens and the implied move needed for a long or short straddle or strangle, useful for earnings plays.
Protective Put / Collar Calculator
See your downside floor, upside cap, and breakeven for a protective put or a collar.
Vertical Spread Calculator
Max profit/loss, breakeven, and probability of profit for bull/bear call and put spreads.
Butterfly Spread Calculator
Max profit/loss, breakevens, and probability of profit for a 4-leg butterfly spread.
Multi-Leg Greeks Calculator
See combined Delta, Gamma, Theta, Vega, and Rho across an entire multi-leg options position.
Wheel Strategy Simulator
Simulate cycling cash-secured puts and covered calls over multiple cycles.
Time Value of Money7
NPV & IRR Calculator
Calculate net present value and internal rate of return for cash flows.
Present Value Calculator
Discount a future lump sum back to what it's worth today.
Future Value Calculator
See what a lump sum invested today will grow to.
Present Value of an Annuity Calculator
Value a stream of equal future payments in today's dollars.
Future Value of an Annuity Calculator
See what a series of equal periodic contributions grows to.
Number of Periods Calculator
Solve for how many periods it takes to reach a savings or investment target.
Interest Rate / Rate of Return Calculator
Solve for the rate that connects a starting balance, contributions, and an ending value.
Stocks & Portfolio Analysis8
Stock Return / CAGR Calculator
Total return and compound annual growth rate for a stock holding, including dividends.
Sharpe Ratio Calculator
Compute Sharpe and Sortino ratios directly from a pasted return series, with an optional benchmark comparison.
Short Sale Calculator
Profit/loss and return on margin for a short sale, including stock borrow fees.
Position Size Calculator
Size a trade from a fixed percentage of account risk and your stop-loss distance.
Dividend Yield Calculator
Calculate a stock's dividend yield and the income a given share count produces.
DRIP Calculator
Project share count and portfolio value with dividends reinvested versus taken as cash.
P/E Ratio Calculator
Calculate a stock's price-to-earnings ratio and earnings yield.
PEG Ratio Calculator
Calculate a stock's PEG ratio to judge its P/E against expected earnings growth.
Bonds & Fixed Income4
Municipal Bond Calculator
Calculate the tax-equivalent yield and return of a municipal bond.
Tax-Equivalent Yield Calculator
Compare taxable and tax-free yields on an equal footing.
Yield to Maturity Calculator
Calculate the yield to maturity of a bond.
Bond Price Calculator
Price a bond from its coupon rate, face value, and yield to maturity.
Annuities3
Technical Analysis8
Fibonacci Retracement Calculator
Find the standard 23.6%, 38.2%, 50%, 61.8%, and 78.6% retracement price levels from a swing high and swing low.
Fibonacci Extension Calculator
Project price targets beyond a swing move using the 127.2%, 161.8%, 200%, and 261.8% extension levels.
Fibonacci Fan Calculator
Project the 38.2%, 50%, and 61.8% diagonal Fibonacci fan trendlines forward from a swing high and low.
Fibonacci Arc Calculator
Find where the 38.2%, 50%, and 61.8% Fibonacci arcs cross at a future bar, based on a swing high and low.
Fibonacci Time Zone Calculator
Project Fibonacci sequence bar counts forward from a starting date to find upcoming dates traders watch for a potential reversal.
Fibonacci Confluence Calculator
Check which Fibonacci retracement and extension levels line up with round numbers, moving averages, or other levels you're watching.
Fibonacci Risk/Reward Calculator
Combine a Fibonacci retracement entry and extension target with a stop-loss to get a risk/reward ratio and position size.
Golden Ratio Position Sizing Calculator
Scale a series of position entries up or down by the golden ratio (1.618), a technique sometimes called Fibonacci pyramiding.
Other16
Land Rent Rate of Return Calculator
Full rate-of-return pro-forma for renting out land — cash flow, NPV, and before/after-tax IRR.
Farmland Investment Calculator
Analyze the value and return of farmland as an investment.
Rental Property Calculator
Full rental property pro-forma — cash flow, NPV, and before/after-tax IRR with financing, depreciation, taxes, and a hypothetical sale.
Cap Rate Calculator
A fast net operating income over value screening tool for rental property deals.
Gross Rent Multiplier (GRM) Calculator
Price divided by gross annual rent, and its inverse, gross rental yield.
1% Rule Calculator
Check whether a rental property's monthly rent meets the 1% rule screening heuristic.
Retirement Calculator
See if you're on track to retire, in today's dollars and with employer match.
Payment Calculator
The general TVM engine behind loan payments: solve for the periodic payment given PV, FV, rate, and term.
Rule of 72 Calculator
Estimate how long it takes an investment to double.
Payback Period Calculator
Find how long an investment takes to recoup its initial cost.
Compound Interest Calculator
See how a lump sum and regular contributions grow with compounding over time.
Donor Advised Fund (DAF) Calculator
Compare funding a DAF with appreciated securities against selling and giving cash outright.
Charitable Remainder Annuity Trust (CRAT) Calculator
Model income and tax benefits of a charitable remainder annuity trust (CRAT).
Charitable Remainder Unitrust (CRUT) Calculator
Model income and tax benefits of a charitable remainder unitrust (CRUT).
Charitable Lead Trust (CLT) Calculator
Estimate the taxable gift value and zero-out payout rate for a charitable lead annuity or unitrust (CLAT/CLUT).
Charitable Remainder Trust Factor Lookup
Look up the exact IRS remainder factor behind a CRUT or CRAT deduction, cross-checked against the official actuarial tables.
Loans
24Auto Loan Calculator
Estimate your car payment, total interest, payoff schedule, and how your vehicle depreciates over the loan.
ATV Loan Calculator
Estimate monthly payments and interest on an ATV or off-road vehicle loan.
Boat Loan Calculator
Calculate payments and total cost for financing a boat.
Motorcycle Loan Calculator
Estimate monthly payments and interest on a motorcycle loan.
RV Loan Calculator
Calculate payments and total cost for financing a recreational vehicle.
Aircraft Loan Calculator
Estimate payments and total interest on an aircraft loan.
VA Loan Calculator
Estimate payments on a VA home loan, including the funding fee.
Land Loan Calculator
Calculate payments and interest for financing raw or improved land.
Loan Amortization Calculator
Generate a full amortization schedule for any fixed-rate loan.
Personal Loan Calculator
Estimate payments and total cost on a fixed-rate personal loan.
Business Loan Calculator
Estimate payments and total cost for a small business loan.
Student Loan Calculator
Project repayment timelines and interest on student loans.
APR Calculator
Calculate the annual percentage rate of a loan including fees.
First-Time Home Buyer Cost Calculator
Compare total cash needed and monthly payment across common down payment tiers, including PMI.
Extra Mortgage Payment & Biweekly Calculator
See how much interest and time you'd save paying extra or switching to biweekly payments.
Credit Card Payoff Calculator
See how long it takes to pay off credit card debt and how much interest you'll save.
Debt Snowball vs. Avalanche Calculator
Compare payoff order strategies across multiple debts to see which saves the most interest.
401(k) Loan Calculator
Estimate the cost and repayment of borrowing from your 401(k).
Payment Calculator
The general TVM engine behind loan payments: solve for the periodic payment given PV, FV, rate, and term.
Debt-to-Income Ratio Calculator
Check your front-end and back-end DTI before you borrow.
Home Affordability Calculator
Find the maximum home price you can likely afford before you start shopping.
Closing Costs Calculator
Itemize lender, title, and government fees to see the total cash you'll need at closing.
Home Rent vs Buy Calculator
Compare ending net worth from buying a home versus renting and investing the difference.
Home Equity Loan & HELOC Calculator
See your available equity and estimate payments for a home equity loan or HELOC.
Mortgage & Real Estate
17Home Loan Calculator
Calculate your principal-and-interest mortgage payment, amortization schedule, and home value growth.
Mortgage Refinance Calculator
Compare your current mortgage to a refinance and find the break-even point.
Mortgage APR Calculator
Find the true APR of a mortgage including points and fees.
VA Loan Calculator
Estimate payments on a VA home loan, including the funding fee.
Land Loan Calculator
Calculate payments and interest for financing raw or improved land.
Land Rent Rate of Return Calculator
Full rate-of-return pro-forma for renting out land — cash flow, NPV, and before/after-tax IRR.
Farmland Investment Calculator
Analyze the value and return of farmland as an investment.
Rental Property Calculator
Full rental property pro-forma — cash flow, NPV, and before/after-tax IRR with financing, depreciation, taxes, and a hypothetical sale.
Cap Rate Calculator
A fast net operating income over value screening tool for rental property deals.
Gross Rent Multiplier (GRM) Calculator
Price divided by gross annual rent, and its inverse, gross rental yield.
1% Rule Calculator
Check whether a rental property's monthly rent meets the 1% rule screening heuristic.
First-Time Home Buyer Cost Calculator
Compare total cash needed and monthly payment across common down payment tiers, including PMI.
Extra Mortgage Payment & Biweekly Calculator
See how much interest and time you'd save paying extra or switching to biweekly payments.
Home Affordability Calculator
Find the maximum home price you can likely afford before you start shopping.
Closing Costs Calculator
Itemize lender, title, and government fees to see the total cash you'll need at closing.
Home Rent vs Buy Calculator
Compare ending net worth from buying a home versus renting and investing the difference.
Home Equity Loan & HELOC Calculator
See your available equity and estimate payments for a home equity loan or HELOC.
Personal Finance
14Emergency Fund Calculator
See how long it'll take to build a fully funded emergency fund at your savings rate.
Credit Card Payoff Calculator
See how long it takes to pay off credit card debt and how much interest you'll save.
Debt Snowball vs. Avalanche Calculator
Compare payoff order strategies across multiple debts to see which saves the most interest.
Disability Insurance Calculator
Estimate how much disability income coverage you need.
Savings Goal Calculator
See how much you need to save per month to hit a target amount by a target date.
Life Expectancy Calculator
Estimate remaining life expectancy from IRS Table 2010CM or the SSA's 2021 Period Life Table.
Budget Calculator
Build a monthly budget and see where your money goes.
Inflation Calculator
See what an amount of money in one year is worth in another, using historical BLS CPI-U data back to 1913.
Net Worth Calculator
Add up assets and liabilities to find your net worth.
Debt-to-Income Ratio Calculator
Check your front-end and back-end DTI before you borrow.
Tip Calculator
Calculate the tip and split a bill across people.
Percentage Calculator
Find a percent of a number, what percent one number is of another, percent change, or the original number behind a percentage.
Electricity Cost Calculator
See what it costs to run a single device per day, month, and year based on its wattage and your electricity rate.
kWh Bill Estimator
Estimate your monthly electric bill by adding up the running cost of multiple household devices.
Taxes
12Roth Conversion Calculator
Compare converting a Traditional balance to Roth today against leaving it Traditional.
Municipal Bond Calculator
Calculate the tax-equivalent yield and return of a municipal bond.
Tax-Equivalent Yield Calculator
Compare taxable and tax-free yields on an equal footing.
Depreciation Calculator
Calculate asset depreciation using straight-line or declining balance.
Sales Tax Calculator
Add or remove sales tax from a price.
Federal Income Tax Bracket Calculator
See your marginal and effective federal tax rate, and a full bracket-by-bracket breakdown, for 2025 or 2026.
Charitable Tax Deduction Calculator
Estimate the tax savings from a charitable donation.
Donor Advised Fund (DAF) Calculator
Compare funding a DAF with appreciated securities against selling and giving cash outright.
Charitable Remainder Annuity Trust (CRAT) Calculator
Model income and tax benefits of a charitable remainder annuity trust (CRAT).
Charitable Remainder Unitrust (CRUT) Calculator
Model income and tax benefits of a charitable remainder unitrust (CRUT).
Charitable Lead Trust (CLT) Calculator
Estimate the taxable gift value and zero-out payout rate for a charitable lead annuity or unitrust (CLAT/CLUT).
Charitable Remainder Trust Factor Lookup
Look up the exact IRS remainder factor behind a CRUT or CRAT deduction, cross-checked against the official actuarial tables.
Retirement
9529 / College Savings Calculator
Project your 529 balance against the real, inflation-adjusted cost of college.
Roth Conversion Calculator
Compare converting a Traditional balance to Roth today against leaving it Traditional.
Retirement Calculator
See if you're on track to retire, in today's dollars and with employer match.
401(k) Loan Calculator
Estimate the cost and repayment of borrowing from your 401(k).
Roth vs. Traditional IRA Calculator
Compare after-tax outcomes of a Roth IRA versus a Traditional IRA.
Annuity Payment Calculator
Calculate the payment amount from a fixed annuity.
Annuity Rate of Return Calculator
Find the effective rate of return on an annuity.
Future Value of an Annuity Calculator
See what a series of equal periodic contributions grows to.
Life Expectancy Calculator
Estimate remaining life expectancy from IRS Table 2010CM or the SSA's 2021 Period Life Table.
Savings
8529 / College Savings Calculator
Project your 529 balance against the real, inflation-adjusted cost of college.
Emergency Fund Calculator
See how long it'll take to build a fully funded emergency fund at your savings rate.
Fixed Annuity vs. Bank CD Calculator
Compare returns from a fixed annuity against a bank CD.
Savings Goal Calculator
See how much you need to save per month to hit a target amount by a target date.
CD Calculator
Calculate interest earned on a certificate of deposit.
APY Calculator
Convert an interest rate to annual percentage yield with compounding.
Compound Interest Calculator
See how a lump sum and regular contributions grow with compounding over time.
Simple Interest Calculator
Calculate interest on the original principal only, with no compounding.
Auto
6Auto Loan Calculator
Estimate your car payment, total interest, payoff schedule, and how your vehicle depreciates over the loan.
Auto Refinance Calculator
See whether refinancing your car loan lowers your payment or total interest.
ATV Loan Calculator
Estimate monthly payments and interest on an ATV or off-road vehicle loan.
Boat Loan Calculator
Calculate payments and total cost for financing a boat.
Motorcycle Loan Calculator
Estimate monthly payments and interest on a motorcycle loan.
RV Loan Calculator
Calculate payments and total cost for financing a recreational vehicle.
Business
4Business Loan Calculator
Estimate payments and total cost for a small business loan.
Payback Period Calculator
Find how long an investment takes to recoup its initial cost.
Break-Even Point Calculator
Find how many units you need to sell to cover your fixed costs.
Depreciation Calculator
Calculate asset depreciation using straight-line or declining balance.