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Loan Balance Calculator

This Loan Balance Calculator helps you estimate the remaining balance on a loan after a certain number of payments, considering your original loan amount, monthly payment, interest rate, and number of periods.

Remaining Loan Balance Calculator

Input Fields
A
$
Enter the original loan amount
P
$
Enter the regular monthly payment
r
%
Enter the annual interest rate
n
months
Enter the number of payments already made
If enabled, the result will update automatically when you change any value.

Loan Balance Calculation Formula

Formula
\[ B = (A \times (1 + r)^n) – \left( \frac{P}{r} \times \left((1 + r)^n – 1\right) \right) \]

Where:

  • $$B$$ = Remaining loan balance
  • $$A$$ = Original loan amount
  • $$r$$ = Monthly interest rate (annual rate divided by 12)
  • $$n$$ = Number of periods (months) elapsed
  • $$P$$ = Monthly payment amount


The Loan Balance Calculator is useful for tracking how much of your loan principal remains unpaid after a certain number of payments. It helps you plan prepayments, refinancing, or evaluate how much you still owe on a mortgage, car loan, or personal loan.

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Loan Amount

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