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ToolGrym

Loan & Debt Calculators

Borrowing money is rarely as simple as the monthly payment a lender quotes you. Interest compounds against you, loan terms stretch costs in ways that are hard to see, and small decisions — an extra $100 a month, a slightly shorter term, a lower rate after refinancing — can change what you pay by tens of thousands of dollars. The calculators in this section make those trade-offs visible. You can build a full mortgage amortization schedule and watch how extra payments cut years off the loan, compare a debt snowball against a debt avalanche with your actual balances, price out a car loan with trade-in value and sales tax included, and find the true payoff date for any loan. Every calculator runs instantly in your browser, shows the formula behind the result, and walks through a worked example so you can verify the math yourself. Nothing here requires an account, and none of your numbers leave your device. Use these tools to pressure-test a lender’s offer before you sign, to build a realistic payoff plan for the debt you already carry, or simply to understand where every dollar of a payment goes — principal, interest, taxes, and fees.