Finance Calculators

Personal finance usually comes down to a handful of numbers, and the gap between a smart decision and a costly one is often just a fraction of a percentage point. The finance calculators on this page put those numbers in front of you before you sign a loan, accept a job offer, or commit to a monthly payment you cannot comfortably afford. Everything runs in your browser, entirely free, with no account and nothing to download. The most common use cases are sizing up a home you are shopping for, deciding how much car you can realistically afford, comparing a new job offer against your current pay, and weighing whether refinancing or paying extra toward a loan is the better move.

A mortgage is the largest debt most households ever take on, so it deserves the most attention. The mortgage calculator turns a home price, down payment, interest rate, and loan term into a clear monthly principal-and-interest payment, and it shows how the total interest changes when you shorten the term. Switching from a 30-year mortgage to a 15-year mortgage typically raises the monthly payment but cuts the lifetime interest dramatically, so run both scenarios before you commit. The loan calculator handles personal, student, and other fixed-installment borrowing with the same core math: a principal repaid with interest across a set schedule. Use it to compare what a debt consolidation loan would actually cost, or to see whether paying a balance off early is worth it. The auto loan calculator adds the real-world details of a car purchase, such as trade-in value and down payment, so you can model the amount you truly finance. A larger down payment lowers both your monthly payment and your total interest, and it helps you avoid being upside-down on the loan early on, when the car is worth less than you owe. A small difference in interest rate compounds into a large difference in total cost, which is why these calculators are most useful while you are still shopping. Enter the exact annual percentage rate (APR) a lender quotes rather than a rounded guess, and re-run the numbers for each offer you receive — the loan and auto loan calculators will show how a quarter-point change moves both your monthly payment and the lifetime interest. Fixed and variable rates behave differently over time, so if you are weighing the two, model the fixed rate against the variable rate's introductory period to see where the break-even sits. The salary calculator flips the question from borrowing to earning. It converts an annual salary into hourly, weekly, biweekly, and monthly figures so you can compare a salaried offer against an hourly rate, or check what a raise actually means per paycheck. Keep in mind that these figures are gross: they do not subtract income tax, insurance, or retirement contributions, so pair them with your own tax situation when you build a budget. These conversions are especially handy when an employer quotes pay one way and you think in another. If you are comparing a salaried role against an hourly contract, run both figures through the salary calculator so you are weighing like-for-like annual amounts rather than a monthly salary against an hourly rate that looks larger per hour than it feels per year. Layer your real deductions — tax bracket, health insurance, and any retirement contributions — on top of the gross numbers to estimate what actually reaches your bank account.

Start with the decision you are actually facing. If you are buying a home or refinancing, use the mortgage calculator. If you are borrowing a lump sum, whether for a car, a renovation, or debt consolidation, reach for the loan or auto loan calculator depending on whether the purchase is a vehicle. If you are weighing a job offer or planning around your income, the salary calculator is the right tool. The common thread is comparison: none of these calculators exists to hand you a single right answer, but to let you test several rates, terms, and down payments side by side and see the trade-offs in plain numbers. That is how a sound financial decision is usually made, by calculating it first.