All financial calculators

Every ModernWallet calculator in one place. Free, instant, and built to show the math behind the answer.

An auto loan calculator estimates your monthly car payment and the total cost of financing a vehicle. The calculator above does this in seconds. Enter the vehicle price, your down payment, the interest rate (APR), and the loan term to see your numbers. For example, a $35,000 car with $5,000 down at 7.5% APR over 60 months gives a $601.14 monthly payment.

This mortgage calculator estimates the monthly principal and interest (P&I) payment on a home loan and shows the full amortization schedule. Enter your home price, down payment, interest rate, and term in the calculator above to see your number instantly. You can also add property taxes and homeowners insurance to see your full monthly payment, known as PITI (principal, interest, taxes, and insurance) — the number that actually hits your bank account.

This retirement calculator estimates how much you'll have saved by your target retirement age and whether that money will last. Enter your age, current savings, monthly contribution, and expected return in the calculator above to see your projected nest egg. It also shows your balance in today's dollars, so inflation doesn't fool you. For example, a 35-year-old saving $500 a month could reach about $1,097,072 by age 67.

This investment calculator projects how your money could grow over time with a starting balance, regular contributions, and a chosen annual return. Just enter your numbers in the calculator above to see your estimated future balance. For example, $10,000 plus $500 a month at a 7% annual return grows to about $300,851 over 20 years. You put in $130,000, while compounding adds $170,851 in growth.

This portfolio calculator estimates your investment mix's expected return, risk, and long-term growth from how your money is split across stocks, bonds, real estate, and cash. Enter your holdings in the calculator above to see your projected return, volatility, and Sharpe ratio in seconds. The figures use long-run historical averages as model assumptions, so treat them as estimates, not guarantees. Use it to test how shifting your asset mix changes the balance between reward and risk.

The rental property calculator above shows whether a single-family rental is a smart investment. Enter the purchase price, rent, loan terms, and expenses to see cash flow, cap rate, cash-on-cash return, and long-term ROI in seconds. It works for first-time buyers and seasoned landlords alike. The detailed guides below break down each metric so you can read your results with confidence.

This free net worth calculator adds your assets, subtracts your debts, and shows where you stand against Federal Reserve benchmarks. Enter cash, investments, retirement accounts, home equity, and vehicles, then list mortgages, loans, and credit card balances in the calculator above. You will see your total net worth, your [liquid net worth](/net-worth/liquid-net-worth-calculator/), and your debt-to-asset ratio in seconds.