Calculator library
Loan & Debt Calculators
Mortgages, car loans, payoff plans, and debt-elimination strategies — see exactly what borrowing costs you.
28
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Calculator index
Every tool is free, private, and explains the formula behind the result.
Featured calculator
Mortgage Calculator
Estimate a complete monthly mortgage payment with principal, interest, property tax, insurance, PMI, and HOA dues. See total interest and loan cost.
Open calculator- Loans calculator
Loan Payoff Calculator
See when any loan will be paid off and how much interest and time extra payments save you. Works for personal loans, auto loans, and more.Open tool - Loans calculator
Car Loan Calculator
Estimate your monthly car payment including trade-in value, down payment, and sales tax. See total interest and the full cost of your auto loan.Open tool - Loans calculator
Debt Snowball Calculator
Compare the debt snowball and avalanche methods with your real balances. See your debt-free date, payoff order, and total interest for each strategy.Open tool - Loans calculator
Mortgage Affordability Calculator
Find the home price your income supports using the 28/36 rule lenders use, including your debts, down payment, taxes, and insurance.Open tool - Loans calculator
Refinance Calculator
See if refinancing pays off: new payment, monthly savings, break-even point on closing costs, and lifetime interest compared with your current loan.Open tool - Loans calculator
Personal Loan Calculator
Calculate your personal loan payment, total interest, and the cash you actually receive after origination fees. Compare terms instantly.Open tool - Loans calculator
Student Loan Calculator
Calculate your monthly student loan payment, total interest, and how much faster extra payments clear the debt. Works for federal and private loans.Open tool - Loans calculator
Credit Card Payoff Calculator
See when your credit card will be paid off with a fixed payment — and what minimum payments would really cost you in years and interest.Open tool - Credit Cards
Credit Utilization Calculator
Calculate total and per-card credit utilization, then see exactly how much to pay down to reach your target ratio. Private and instant.Open tool - Credit Cards
Credit Card Balance Transfer Calculator
Compare a balance transfer with keeping your current card. Include the transfer fee, promo APR, post-promo APR, payoff time, and real savings.Open tool - Mortgages
Biweekly Mortgage Payment Calculator
Compare monthly and accelerated biweekly mortgage payments. See your biweekly amount, new payoff date, time saved, and interest savings.Open tool - Loans calculator
Debt-to-Income Ratio Calculator
Calculate your front-end and back-end DTI the way lenders do, see how you rate against the 36% and 43% thresholds, and what room you have left.Open tool - Mortgages
Rent vs. Buy Calculator
Compare renting and buying with mortgage, PMI, HOA, equity, appreciation, rent growth, selling costs, and invested cash.Open tool - Mortgages
Mortgage Amortization Calculator
Build an annual mortgage amortization schedule and see how monthly extra principal changes payoff time, total interest, and remaining balance.Open tool - Mortgages
Down Payment & PMI Calculator
Estimate cash down, starting loan-to-value, monthly PMI, total PMI, and when scheduled mortgage principal may reach 80% LTV.Open tool - Credit Cards
Credit Card Minimum Payment Calculator
Estimate payoff time and interest with a declining credit-card minimum payment, then compare a fixed monthly payment using the same balance and APR.Open tool - Debt Payoff
Debt Consolidation Calculator
Compare current debt with a consolidation loan, including APR, loan term, financed origination fee, monthly payment, and complete finance cost.Open tool - Mortgages
Mortgage Points Calculator
Compare mortgage payments with and without discount points, calculate the break-even month, and test net savings for the time you expect to keep the loan.Open tool - Auto Loans
Car Lease vs. Buy Calculator
Compare leasing and buying a car over the same period, including down payments, monthly payments, loan balance, depreciation, maintenance, and equity.Open tool - Mortgages
Buyer Closing Costs Calculator
Estimate buyer closing costs and cash to close from the down payment, lender fees, points, title costs, inspections, prepaids, credits, and deposits.Open tool - Mortgage Programs
FHA Loan Calculator
Estimate an FHA mortgage payment with upfront MIP, annual MIP, down payment, rate, and term. Adjust fees to match your Loan Estimate.Open tool - Mortgage Programs
VA Loan Calculator
Estimate a VA home-loan payment with an optional financed funding fee, down payment, rate, and term. No monthly mortgage insurance is modeled.Open tool - Mortgage Programs
USDA Loan Calculator
Estimate a USDA guaranteed-loan payment with the upfront guarantee fee, annual fee, rate, term, and optional down payment.Open tool - Mortgage Programs
Adjustable-Rate Mortgage Calculator
Compare an adjustable-rate mortgage initial payment with a reset-rate stress case after the fixed period. See the payment change clearly.Open tool - Home Equity
HELOC Payment Calculator
Estimate a HELOC interest-only draw payment and the fully amortizing repayment payment, including the payment jump after the draw period.Open tool - Home Equity
Home Equity Loan Calculator
Estimate a fixed-rate home equity loan payment, total interest, and combined payment with your existing mortgage.Open tool - Credit Cards
Credit Card Interest Calculator
Estimate first-month credit-card interest, total interest, and payoff time at a fixed monthly payment. APR and issuer rules vary.Open tool
Desk notes
What these calculators reveal
Borrowing money is rarely as simple as the monthly payment a lender quotes you. Interest compounds against you, loan terms stretch costs in ways that are hard to see, and small decisions — an extra $100 a month, a slightly shorter term, a lower rate after refinancing — can change what you pay by tens of thousands of dollars. The calculators in this section make those trade-offs visible. You can build a full mortgage amortization schedule and watch how extra payments cut years off the loan, compare a debt snowball against a debt avalanche with your actual balances, price out a car loan with trade-in value and sales tax included, and find the true payoff date for any loan. Every calculator runs instantly in your browser, shows the formula behind the result, and walks through a worked example so you can verify the math yourself. Nothing here requires an account, and none of your numbers leave your device. Use these tools to pressure-test a lender’s offer before you sign, to build a realistic payoff plan for the debt you already carry, or simply to understand where every dollar of a payment goes — principal, interest, taxes, and fees.