Free Credit and Loan Calculators

Your FICO credit score is the most commonly used creditworthiness metric in the United States, and it directly determines the interest rate you are offered on every loan and credit product you apply for. The score ranges from 300 to 850, with scores above 740 generally qualifying for the best available rates and scores below 580 making it difficult to qualify for conventional credit at all. A difference of 100 points on your credit score can mean a difference of 1% to 2% in mortgage interest rate — which translates to tens of thousands of dollars in additional interest on a typical home loan.

The five components of a FICO score are weighted differently. Payment history — whether you make payments on time — carries the most weight at 35%. Amounts owed, specifically your credit utilization ratio, accounts for 30%. Length of credit history contributes 15%, making it advantageous to keep old accounts open even if unused. New credit inquiries represent 10%, which is why applying for multiple new credit accounts in a short period lowers your score. Credit mix — having a combination of installment loans and revolving credit — accounts for the remaining 10%.

The most impactful actions to improve your credit score are: never missing a payment, reducing credit card balances to lower your utilization ratio, avoiding unnecessary new credit applications, and keeping existing accounts open. The Credit Score Simulator on this page lets you model exactly how specific actions — paying down a balance, opening a new card, or missing a payment — would affect your score, so you can make strategic decisions with data rather than guesswork.

Comparing loan offers based solely on the advertised interest rate is one of the most common and costly mistakes borrowers make. The interest rate tells you only the base cost of borrowing the principal — it does not include origination fees, points, closing costs, or other charges that can add thousands of dollars to the true cost of a loan. The Annual Percentage Rate (APR) is the correct metric for comparison because it captures the interest rate plus all required fees, expressed as a single annualized cost of borrowing.

When comparing mortgage offers, it is also important to evaluate the loan terms beyond APR. A 30-year loan at a lower rate may have a lower monthly payment than a 15-year loan but cost dramatically more in total interest over the full term. Points — prepaid interest paid at closing — can lower your rate but require years to break even. And adjustable-rate mortgages may offer a lower initial rate but carry the risk of payment increases if rates rise after the fixed-rate period expires. Each of these tradeoffs requires running the numbers honestly across the full loan term, not just comparing monthly payments.

The APR vs Interest Rate Explainer on this page helps you calculate and compare the true cost of any loan offer including fees, while the Mortgage Calculator generates a full amortization schedule so you can see the total interest paid over the entire loan term — the number that matters most for making an informed borrowing decision.

Refinancing replaces your existing loan with a new one, typically at a lower interest rate, different term, or both. The primary appeal is lower monthly payments or reduced total interest paid. However, refinancing is not always the right move — it involves closing costs that typically range from 2% to 5% of the loan amount, and those costs must be recovered through monthly savings before the refinance generates a net financial benefit. The break-even point — the number of months required to recoup closing costs through lower payments — is the critical number in any refinance decision.

A refinance generally makes sense when the new interest rate is at least 0.75% to 1% lower than your current rate, when you plan to stay in the home long enough to reach the break-even point, and when your credit score has improved significantly since the original loan. It typically does not make sense when you are close to paying off the loan (since you have already paid most of the interest), when you plan to move within the next few years, or when closing costs are high relative to the monthly savings the lower rate provides.

The Refinance Savings Calculator on this page calculates your monthly payment reduction, closing cost break-even timeline, and total interest saved over the remaining loan term — giving you all three numbers needed to make a confident refinance decision. Enter your current loan balance, remaining term, current rate, proposed new rate, and estimated closing costs to see the full picture.

When you carry multiple debts simultaneously — credit cards, student loans, a car loan, a personal loan — the order in which you prioritize extra payments has a significant impact on how much interest you pay in total and how quickly you become debt-free. Two systematic payoff strategies dominate personal finance: the Avalanche method and the Snowball method. Both require you to make the minimum payment on all debts while directing any additional payment capacity to a single prioritized debt until it is eliminated, then rolling that payment to the next target.

The Debt Avalanche method prioritizes the debt with the highest interest rate first, regardless of balance size. Because it attacks the most expensive debt first, it is mathematically optimal — it minimizes the total interest paid across all debts and typically results in becoming debt-free faster than any other sequence. For a person carrying a mix of credit card debt at 24%, a personal loan at 12%, and a student loan at 6%, the Avalanche method would direct extra payments to the credit card first, saving the maximum possible amount in interest costs.

The Debt Snowball method, popularized by Dave Ramsey, prioritizes the smallest balance first regardless of interest rate. Eliminating smaller debts quickly generates psychological wins that many people find motivating enough to maintain the payoff plan over the months or years required to become debt-free. Research on financial behavior consistently shows that real-world adherence to a plan matters more than mathematical optimality — a slightly suboptimal plan that someone actually follows produces better outcomes than an optimal plan that gets abandoned. The Credit Card Payoff Calculator and Loan Repayment Calculator let you model both strategies side by side so you can see the exact interest and time savings of each approach and choose the one that fits your situation.