Finance & Investing Calculators
High-precision calculators for compound interest, mortgages, loans, retirement, taxes, and investment ROI.
Compound Interest & Wealth Growth Calculator
Calculate how your initial investment and monthly contributions grow over time with compound interest.
Mortgage Monthly Payment & Amortization Calculator
Estimate your monthly mortgage principal and interest payment, total loan cost, and down payment impact.
Auto Loan Monthly Payment & Total Interest Calculator
Calculate your monthly car payment after trade-in and down payment across 36 to 84 month loan terms.
Credit Card Payoff & Interest Savings Calculator
Find out how many months it takes to become debt-free and how much interest you pay on credit card balances.
Personal & Business Loan Amortization Calculator
Calculate fixed monthly payments, first-month interest vs principal split, and total cost for any installment loan.
Emergency Fund Runway & Safety Net Calculator
Calculate your ideal 3-to-12 month emergency cash reserve and how long it takes to build it.
Retirement Nest Egg & 4% Safe Withdrawal Calculator
Project your retirement portfolio value at retirement age and sustainable monthly income under the 4% rule.
FIRE Number & Financial Independence Calculator
Calculate your exact Financial Independence Retire Early (FIRE) target number based on annual spending and withdrawal rate.
Dividend Yield & Passive Income Portfolio Calculator
Calculate annual and monthly dividend income and see how much capital is needed to hit your passive income target.
Crypto Investment Profit, ROI & Break-Even Calculator
Calculate net cryptocurrency trading profit, ROI percentage, and exchange fee deductions for any coin.
Stock Average Down & Cost Basis Calculator
Calculate your new average share price when buying the dip or adding to an existing stock position.
Rule of 72 Money Doubling Time Calculator
Compare the classic Rule of 72 approximation with exact logarithmic doubling time for any investment return.
Inflation Purchasing Power & Future Cost Calculator
See how inflation erodes cash purchasing power and how much today's expenses will cost in the future.
Personal Net Worth & Liquidity Ratio Calculator
Calculate your total net worth, liquid net worth, and leverage ratio across cash, investments, real estate, and debts.
Debt-to-Income (DTI) Ratio Mortgage Qualification Calculator
Calculate your front-end and back-end Debt-to-Income (DTI) ratio used by mortgage lenders.
Monthly Savings Target Calculator for Any Goal
Determine exactly how much you need to save each month to hit a specific financial target by your deadline.
CD (Certificate of Deposit) APY & Maturity Calculator
Calculate exact Certificate of Deposit interest earnings and maturity value for 3-month to 60-month CD terms.
Rent vs. Buy Home Breakeven & Cost Comparison Calculator
Compare monthly cash outflow and 5-year net wealth impact of renting an apartment vs buying a house.
How Much House Can I Afford? (28/36 Rule Calculator)
Calculate your maximum affordable home price based on household income, existing debt, and down payment.
Student Loan Repayment & Extra Payment Savings Calculator
Calculate your standard monthly student loan payment and see how much time and interest an extra payment saves.