Start here if you know the loan amount
Use mortgage payment or loan payment with the rate and term you expect.
Calculator hub
Mortgage and Loan Calculators
Use these mortgage and loan calculators to compare monthly payments, amortization schedules, extra-principal payoff plans, lump sums, affordability, refinance break-even points, car loans, student loans, credit cards, 0% APR deadlines, and debt payoff choices.
This hub helps estimate payments, affordability, refinance scenarios, debt payoff, and loan comparisons before you talk with a lender or make a budget decision.
Results are planning estimates and not lender quotes. Taxes, insurance, PMI, fees, credit profile, and lender terms can change the final number.
Best calculators for...
- Estimating a monthly payment before talking with a lender
- Comparing loan terms, APRs, down payments, and refinance costs
- Checking whether a payment fits the rest of the budget
How to choose the right calculator
Start with Mortgage Payment or Loan Payment when you know the amount and rate. Use Home Affordability when you know your income and debt. Use Rent vs Buy or Refinance when you are comparing options.
Related hubs
Simple decision tree
Home paymentMortgage payment -> home affordability -> rent vs buy.
Generic borrowingLoan payment -> credit card payoff or car payment if the debt type is specific.
Changing an existing loanRefinance -> break-even -> monthly budget check.
Best path
Start here if...
Use the hub as a short decision guide before opening individual calculators.
Start here if you know your budget
Use home affordability before raising the purchase price or loan amount.
Start here if comparing options
Use refinance, rent vs buy, or debt payoff calculators with matching fees and timelines.
Decision guide
Which calculator should I use?
Match the question you are trying to answer with the calculator that gives the cleanest starting point.
Swipe to see all columns.
| User goal | Best calculator | Why it helps |
|---|---|---|
| Estimate mortgage payment | Mortgage Payment Calculator | Estimates principal, interest, taxes, insurance, and PMI if supported. |
| Compare loan payments | Loan Payment Calculator | Estimates payment by amount, rate, and term. |
| Estimate home affordability | Home Affordability Calculator | Compares income, debts, and payment range. |
| Compare rent vs buy | Rent vs Buy Calculator | Looks at long-term tradeoffs. |
| Estimate refinance impact | Mortgage Refinance Calculator | Compares current and new loan scenarios. |
| Estimate one blended debt balance | Aggregate Debt Payoff Calculator | Estimates an aggregate payoff timeline from total debt, payment budget, and average APR. |
| Compare payoff order | Debt Snowball vs Avalanche Calculator | Models separate debts using snowball and avalanche allocation. |
| Estimate credit card payoff | Credit Card Payoff Calculator | Helps compare payment strategies. |
Common planning mistakes
- Looking only at principal and interest.
- Forgetting taxes, insurance, PMI, HOA, or local fees.
- Confusing APR with interest rate.
- Ignoring closing costs.
- Assuming estimates are lender quotes.
- Comparing loans without matching term length and fees.
- Forgetting that rates, taxes, and insurance can change.
Best next step
Use these next pages when you want to cross-check the estimate, compare a related option, or move from a quick number into a more complete plan.
Tools
Use these calculators
Free mortgage, amortization, loan, extra-payment, refinance, car payment, home affordability, rent vs buy, credit payoff, and 0% APR calculators.
Finance
Mortgage Payment Calculator
Estimate monthly mortgage payment from loan amount, interest rate, loan term, property tax, insurance, and HOA costs.
Finance
Extra Mortgage Payment Calculator
Compare a mortgage's scheduled payoff with extra monthly principal and an optional extra principal payment once per year.
Finance
Mortgage Lump-Sum Payment Calculator
Compare a mortgage's scheduled payoff with applying a one-time lump-sum payment directly to principal while keeping the regular payment unchanged.
Finance
Mortgage Refinance Calculator
Estimate refinance savings and break-even timing from current payment, new loan amount, new rate, term, and closing costs.
Finance
Home Affordability Calculator
Estimate affordable home price from gross monthly income, debt payments, down payment, interest rate, term, and housing ratio.
Finance
Debt-to-Income Ratio Calculator
Calculate your debt-to-income ratio and the maximum total or non-housing monthly debt payment at a selected planning target.
Finance
Rent vs Buy Calculator
Compare renting and buying cost over time from monthly rent, mortgage payment, ownership costs, appreciation, and expected years.
Finance
Amortization Calculator
Calculate a fixed-rate loan's scheduled monthly principal-and-interest payment, total interest, and payment-by-payment amortization values.
Finance
Loan Payment Calculator
Estimate monthly loan payment from principal, annual interest rate, loan term, fees, and optional extra monthly payment.
Finance
Credit Card Payoff Calculator
Estimate a credit card debt-free date, total interest, and how an extra monthly payment could change the payoff schedule.
Finance
Credit Card Payment Needed Calculator
Calculate the minimum whole-cent fixed payment needed to pay off a credit card balance by a chosen monthly deadline.
Finance
Balance Transfer Savings Calculator
Compare keeping a credit card balance with moving it to a promotional balance-transfer offer, including transfer fees and post-promotion interest.
Finance
Credit Utilization Calculator
Calculate overall or per-card credit utilization from the balance and credit limit reported for your revolving credit accounts.
Finance
Credit Utilization Target Calculator
Calculate how much of a reported credit card balance to pay to reach a chosen overall or per-card credit utilization target.
Finance
0% APR Credit Card Payoff Calculator
Check whether a monthly payment will clear one true 0% promotional credit card balance before the introductory APR expires and see any balance left at expiration.
Finance
0% APR Credit Card Payment Needed Calculator
Calculate the monthly payment needed to clear one true 0% promotional credit card balance within the number of promotional payments remaining.
Finance
Credit Card Interest Calculator
Estimate credit card interest from average daily balance, APR, and days, or compare a daily-compounding sensitivity estimate.
Finance
Aggregate Debt Payoff Calculator
Estimate payoff time for one blended debt balance from total debt, combined monthly payments, extra payment, and average APR.
Finance
Debt Snowball vs Avalanche Calculator
Compare account-by-account debt snowball and highest-interest avalanche payoff plans across up to four balances with one shared payment budget.
Finance
Car Payment Calculator
Estimate monthly car payment from vehicle price, down payment, trade-in, sales tax, interest rate, loan term, and fees.
Finance
Extra Car Payment Calculator
Compare an auto loan's scheduled payoff with making an additional principal payment every month.
Finance
Extra Student Loan Payment Calculator
Compare a single fixed-rate student loan's scheduled payoff with making an additional principal payment every month.
Finance
Car Affordability Calculator
Estimate affordable car price from monthly budget, loan rate, term, down payment, tax, fees, and insurance allowance.
Guides
Related guides
Use these supporting pages to understand assumptions, examples, and next steps.
Finance
Home Maintenance Reserve and Repair Planning Guide
Build an entered maintenance budget and repair-reserve catch-up plan without treating a percentage rule as a repair quote or insurance decision.
Finance
How credit card interest is calculated: APR, daily rate, and average daily balance
See how a card issuer can turn APR and daily balances into interest for one billing period, and why your statement may not match a quick estimate.
Finance
Credit card payoff date and extra payment guide
See how a fixed monthly payment changes payoff time and interest, how the final payment works, and why an issuer's payoff quote may differ.
Finance
How Much Do I Need for Retirement? Target, 401(k) Growth, and Savings Gap
Build a retirement target from spending and other income, project 401(k) growth, and solve the monthly savings gap without mixing the three decisions.
Finance
FIRE vs. Coast FIRE: Which Retirement Number Are You Solving For?
Compare a FIRE date with a Coast FIRE balance using one spending target while keeping ongoing contributions, inflation, and claim limits explicit.
FAQs
Mortgage and Loan Calculators questions
Which loan calculator should I start with?
Use a payment calculator if you know the loan amount, APR, and term. Use affordability calculators when you need to work backward from income or monthly budget.
Do these calculators include every loan cost?
No. Taxes, insurance, PMI, HOA dues, lender fees, title costs, and local costs can change the final payment.
Can these calculators approve a loan?
No. They are planning estimates only and are not lender quotes, underwriting, approval, or financial advice.