Calculators
Credit & Debt
Loans, cards, transfers, and the order you pay balances down. Each calculator computes from the numbers you enter. Press Calculate on the page.
How to use the Credit & Debt calculators
Loans, cards, transfers, and the order you pay balances down.
There are 11 calculators in Credit & Debt. Each one has its own fields and its own formula. They are listed on this page so you can pick the question you actually have. Open the tool, replace the example, and press Calculate. The result stays in the browser.
Do not treat this index as a single worksheet. A payment, a payoff date, and a tax estimate answer different questions. Adding the headlines together mixes kinds of dollars. Read one result, then open the next tool if the question changed.
What each calculator is for
Loan Calculator — Calculate the payment, interest, and schedule for a fixed-rate loan with optional extra principal. The form includes Loan amount, Interest rate, Term, Extra principal each month. A fixed payment, a rate, and the interest it creates.
Payment Calculator — Solve a monthly payment from a balance, a rate, a term, and an optional future value. The form includes Present value, Interest rate, Years, Future value left at the end. The payment that links a balance to a future value.
Personal Loan Calculator — Calculate a personal-loan payment and the APR after an origination fee taken from proceeds. The form includes Note amount, Interest rate, Term, Origination fee. Note amount, fee, payment, and APR.
Student Loan Calculator — Estimate a standard student-loan payment and a rough 10% income-driven payment. The form includes Balance, Interest rate, Standard term, Extra principal each month. Standard amortization, plus a rough income-based figure.
Credit Card Calculator — Find the payment that clears a credit card balance in the number of months you choose. The form includes Balance, APR, Months to pay it off. The payment that actually ends the balance.
Credit Card Payoff Calculator — See how many months a fixed credit-card payment takes, and what an extra amount changes. The form includes Balance, APR, Monthly payment, Extra each month. Months and interest from the payment you can send.
The rest of this set
Balance Transfer Calculator — Compare staying on a card with transferring the balance, including the fee and the promo window. The form includes Balance, Transfer fee, Promotional months, Promotional APR. Fee, promotional months, then the later APR.
Debt Payoff Calculator — Calculate the months and interest to retire one debt at a fixed payment. The form includes Balance, Interest rate, Monthly payment, Extra each month. One balance, one payment, a clear end date.
Debt Consolidation Calculator — Compare the interest of your current payment with a new consolidation loan and its fees. The form includes Total balances, Current average rate, Current total payment, New loan rate. A lower payment can still cost more interest.
Debt Snowball Calculator — Compare the avalanche and snowball methods on up to three debts with a fixed total payment. The form includes Debt 1 balance, Debt 1 rate, Debt 1 minimum, Debt 2 balance. Highest rate versus smallest balance.
Repayment Calculator — Find how long a fixed repayment takes to clear a balance and what interest it costs. The form includes Balance, Interest rate, Monthly repayment. Balance and payment in, months and interest out.
What this category will not do
Credit & Debt pages on this desk are educational. They do not apply for a loan, file a return, or move money. Where a 2026 public figure is used, the methodology names the limit and the page says what it leaves out.
If a result looks wrong, check the field that does not match your paperwork before you blame the formula. A payment that includes tax and insurance will not match a quote that is principal and interest only. A contribution above a legal limit will still compound on this desk if you type it, which is why the retirement pages tell you to type only what you are allowed to add.
A session on this page
Pick one question in Credit & Debt and open only that calculator. Loan, Payment, Personal Loan, Student Loan, Credit Card, Credit Card Payoff, Balance Transfer, Debt Payoff, Debt Consolidation, Debt Snowball, Repayment are the choices. Read the blurb under the name. If the blurb is not your question, go back and choose again. Running three tools “just in case” produces three headlines that were never meant to be added.
On the tool you chose, leave the example long enough to press Calculate once. You are checking that a result appears and that the labels match the story in the heading. Then replace every field. Loans, cards, transfers, and the order you pay balances down. The example numbers on each form are there so the formula can be demonstrated. They are not a suggestion that your price, payment, or income should look like the default.
Write down the headline and the two lines under it that you might quote later. If you cannot say which input produced them, you are not ready to use them. Change the input you are least sure about and press Calculate a second time. The size of the move tells you whether to go find a better source for that input before you decide.
After you press Calculate
Credit & Debt stays inside finance math. It does not collect an application and it does not rank products. When the result is an estimate of tax, a retirement limit, or a payment a lender could quote differently, the page says so. The disclaimer and the methodology apply to every link on this index, including Loan Calculator and Repayment Calculator.
In one line each, the set is: Loan Calculator (A fixed payment, a rate, and the interest it creates.); Payment Calculator (The payment that links a balance to a future value.); Personal Loan Calculator (Note amount, fee, payment, and APR.); Student Loan Calculator (Standard amortization, plus a rough income-based figure.); Credit Card Calculator (The payment that actually ends the balance.); Credit Card Payoff Calculator (Months and interest from the payment you can send.); Balance Transfer Calculator (Fee, promotional months, then the later APR.); Debt Payoff Calculator (One balance, one payment, a clear end date.); Debt Consolidation Calculator (A lower payment can still cost more interest.); Debt Snowball Calculator (Highest rate versus smallest balance.); Repayment Calculator (Balance and payment in, months and interest out.). Open the one whose line matches the paper in front of you.
FAQs
How many Credit & Debt calculators are on this page?
11. Loan, Payment, Personal Loan are among them. Each link opens a form with its own Calculate button.
Do these tools share one formula?
No. Loans, cards, transfers, and the order you pay balances down. The shared part is the way you use them: type the figures, press Calculate, and read the lines under the headline.
Will the page save what I type?
No. The calculation runs in your browser. Closing the page clears it. Do not type account numbers into a balance field.
Which result should I trust if two calculators disagree?
Check that they were asked the same question. Different fields produce different headlines on purpose. Match the labels to the document in front of you, then trust the page whose inputs you actually filled.
Is this financial, tax, or legal advice?
No. The figures are estimates from the inputs and the formula on each page. A lender, a custodian, or a filing form can apply a rule this index does not see.