Finance & Mortgage Calculators 💰

20 free finance calculators for mortgages, loans, savings, investments, retirement, and business analysis. Get clear numbers fast — no spreadsheets, no sign-up, no cost.

20 Calculators

💡 These calculators provide estimates for informational purposes only and are not financial advice. Results may vary based on actual rates, fees, and individual circumstances. Consult a qualified financial advisor before making major financial decisions.

Mortgages & Loans

5 tools

Mortgage Calculator—Monthly payment, total interest, taxes, PMI, and full amortization schedule→ Loan Calculator—Personal, auto, and home equity loan payments with full amortization table→ Auto Loan Calculator—Monthly car payment with trade-in value, sales tax, and term comparison→ Refinance Calculator—Monthly savings, break-even point, and 5-year savings from refinancing your mortgage→ APR Calculator—True cost of a loan including all fees — compare lenders on a level playing field→

Savings & Investment

6 tools

Compound Interest Calculator—Watch your savings grow — daily, monthly, or annual compounding with contribution support→ Savings Calculator—How long to reach your savings goal — or how much to save each month to get there→ Simple Interest Calculator—Solve for interest, principal, rate, or time using I = P × R × T→ Investment Return Calculator—Calculate ROI and CAGR on any investment — compare to benchmark returns→ Future Value Calculator—What will your investment be worth? Solve for FV, PV, rate, or time→ Rule of 72 Calculator—How long to double your money at a given interest rate — the fastest mental math shortcut in finance→

Retirement & Planning

2 tools

Retirement Calculator—401(k) & IRA — how much you'll have at retirement by decade with contribution projections→ Rent vs. Buy Calculator—Long-term cost comparison with equity buildup, appreciation, and opportunity cost→

Business & Analysis

5 tools

ROI Calculator—Return on investment, annualized ROI, and benchmark comparison for any investment→ NPV Calculator—Net Present Value of any project or investment with full cash flow table and IRR→ Break-Even Calculator—How many units must you sell to cover all costs? Essential for any business plan→ Profit Margin Calculator—Gross, operating, and net profit margins — plus a markup vs. margin converter→ Financial Ratios Calculator—Current ratio, D/E, ROE, EPS, P/E — all key ratios with industry benchmarks in one place→

Credit & Debt

2 tools

Credit Card Payoff Calculator—Time to pay off debt and total interest paid — compare avalanche vs. snowball payoff strategies→ Debt-to-Income Calculator—Calculate your DTI ratio and see whether you qualify for a mortgage or personal loan→