Repayment Calculator

Calculate your monthly loan repayment amount, total interest, and payoff schedule for any personal loan or debt.

$

The total amount you need to repay.

%

Annual interest rate on the loan.

Length of the repayment period.

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AI provides general information, not financial advice. Always consult a qualified professional.

Understanding Loan Repayment

Loan repayment involves paying back borrowed money plus interest over a set period. Each monthly payment consists of principal (reducing the loan balance) and interest (the cost of borrowing). Early payments are mostly interest, shifting toward mostly principal as the loan matures. This is called amortization.

How Monthly Payments are Calculated

Monthly payments are calculated using the standard amortization formula: M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the principal, r is the monthly interest rate, and n is the number of payments. This formula ensures equal payments throughout the loan term while fully paying off the balance by the end.

Choosing the Right Loan Term

Shorter loan terms mean higher monthly payments but significantly less total interest. A $10,000 loan at 8% over 2 years costs $452/month with $855 in total interest. Over 5 years, payments drop to $203/month but total interest rises to $2,166. Choose the shortest term you can comfortably afford.

Strategies for Faster Repayment

Pay more than the minimum whenever possible — even an extra $50/month can save hundreds in interest. Make biweekly payments instead of monthly (results in one extra payment per year). Apply windfalls like tax refunds to your principal. Consider the debt avalanche method — pay minimums on all debts and throw extra money at the highest-rate debt first.

Frequently Asked Questions