Best Loan & Debt CalculatorsFree Online Tools
From monthly payment estimates to debt payoff strategies — understand the true cost of borrowing before you sign, and build a plan to get out faster.
Loan & Debt Calculator Tools
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Loan Calculator
Compute monthly payments and total interest for any personal loan. Compare different term lengths to find the right balance.
Open calculatorStudent Loan Calculator
Calculate your student loan repayment timeline and total interest under standard, income-driven, or aggressive payoff plans.
Open calculatorAuto Loan Calculator
Calculate your monthly car payment and total interest. See the real cost difference between a 48-month and 72-month loan term.
Open calculatorCredit Card Payoff Calculator
Find out how long it takes to clear your credit card balance and exactly how much interest you'll pay at different monthly amounts.
Open calculatorDebt Payoff Calculator
Compare the avalanche vs snowball methods across all your debts. See your payoff date and total interest saved for each strategy.
Open calculatorLoan & Debt Guides
Strategy and context for paying off debt smarter
Student Loan Payoff Strategies That Actually Work
Most student loan borrowers waste thousands in interest by sticking to the minimum payment. A few smart moves can shave years off your debt and save a surprising amount.
7 min readThe Fastest Way to Get Out of Credit Card Debt
At 24% APR, a $5,000 balance costs you $100/month in interest alone. The minimum payment barely touches principal. Here is the math — and the exact path out.
6 min readDebt Avalanche vs. Debt Snowball: Which Method Is Right for You?
Both the debt avalanche and debt snowball methods work — but one saves thousands more in interest. Here is exactly how each strategy works, with a real side-by-side comparison and a calculator to model your own debts.
7 min readHow Much Car Can You Afford? The 20/4/10 Rule
Most people focus on the monthly payment, not the total cost. The 20/4/10 rule gives you a real budget limit before you walk into a dealership — and protects you from the most common car-buying mistakes.
5 min readGood Debt vs Bad Debt: How to Evaluate Every Dollar You Borrow
Some debt builds wealth. Some debt destroys it. The difference isn't just the interest rate — it's whether the debt funds an asset that grows in value or a liability that depreciates.
6 min readWhat Do Loan Calculators Help You Figure Out?
Loan calculators transform a monthly payment into the full picture of what borrowing actually costs. The monthly payment is rarely the most important number — the total interest paid over the life of the loan is. For a $35,000 car loan at 7% over 72 months, you pay over $8,000 in interest on top of the principal. Knowing this before you sign changes the decision entirely.
Key things loan calculators help you determine: the true total cost of any loan including all interest charges; how different loan terms affect the monthly payment vs total cost trade-off; how long it will take to pay off credit card debt at various monthly payment amounts; whether the avalanche method (highest rate first) or snowball method (smallest balance first) will save you more money; and the exact payoff date for every account in your debt portfolio.
The Debt Payoff Calculator is especially powerful for anyone carrying balances on multiple accounts. It models your entire debt portfolio in one place and shows you the exact interest savings from adding even $100 extra per month.
How to Choose the Right Loan Calculator
The right calculator depends on what you're borrowing for. The Loan Calculator is the general-purpose tool for any personal loan — enter the amount, rate, and term to see your monthly payment and total cost. For specific loan types, the purpose-built calculators give you more targeted analysis: the Auto Loan Calculator for vehicle financing, and the Student Loan Calculator for education debt repayment timelines including income-driven repayment options.
The Credit Card Payoff Calculator is critical for revolving debt. It shows you not just when you'll pay it off, but exactly how much the minimum payment trap costs you in extra interest — and how much you save by paying $50 or $100 more per month.
If you have multiple debts — a common situation — start with the Debt Payoff Calculator. It handles your entire portfolio in a single view and lets you compare both debt payoff strategies side by side to find the one that fits your situation.