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Loan Calculator
Calculate your monthly payments and total interest for any personal or business loan.
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Calculate your monthly payments and total interest for any personal or business loan.
Managing debt effectively starts with understanding the mathematical reality of your loan. Our Loan Calculator breaks down complex financing into simple, actionable numbers. Whether you're considering a personal loan, a car purchase, or general financing, this tool provides a comprehensive look at your monthly obligations and the total cost of borrowing, empowering you to make informed financial decisions.
M = P[r(1+r)^n] / [(1+r)^n - 1]This is the standard amortization formula used by banks. 'M' is the monthly payment, 'P' is the principal, 'r' is the monthly interest rate, and 'n' is the total number of months. It ensures that by the end of the term, both the principal and all accrued interest are fully paid off.
Simple interest is calculated only on the principal amount. Amortized interest (used in most loans) is calculated on the *remaining* balance each month. This means you pay more interest at the start of the loan and less at the end.
Making extra payments goes directly toward the principal balance. This reduces the total interest you pay and shortens the loan term. Use our calculator to see how much faster you can be debt-free.
To calculate one month's interest manually: Take your current loan balance, multiply it by your annual interest rate, then divide by 12. For example, $10,000 * 0.05 / 12 = $41.66 in interest for that month.
This is due to amortization. In the early years, your loan balance is high, so the interest charge is high. Since your monthly payment is fixed, most of it is used to cover that interest, leaving little left to reduce the principal.
"Federal tax estimates are based on 2024 brackets. Consult a tax professional for official filing."