Loan Payment Calculator

Calculate your monthly loan payments, total interest, and total payment based on loan amount, interest rate, and loan term.

isCalculator Editorial Team Published by:
Reviewed by: Review Board
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How to use this tool?

Follow these steps to calculate your loan payments:

  1. Enter Loan Amount ($) – Input the total amount you plan to borrow (e.g., 10000). Must be a positive number.
  2. Enter Annual Interest Rate (%) – Input the yearly interest rate as a percentage (e.g., 5 for 5%). Must be a positive number.
  3. Enter Loan Term (years) – Input the repayment period in whole years (e.g., 5). Must be at least 1.
  4. Click "Calculate" – The button will validate your inputs and compute the results.

Results displayed:

  • Monthly Payment – Your fixed payment each month.
  • Total Interest – The total interest paid over the loan term.
  • Total Payment – The sum of principal and interest.

Note: All inputs must be positive numbers. The calculator uses the standard amortization formula (monthly compounding).

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Frequently Asked Questions

It calculates the monthly payment required to fully amortize a loan over a given term, based on the loan amount and annual interest rate.

Using the formula M = P [r(1+r)^n] / [(1+r)^n - 1], where P is the loan amount, r is monthly interest rate, and n is total number of payments.

Yes, for fixed-rate amortizing loans like mortgages, auto loans, and personal loans.

Reviewed by Experts

Carlos Bicho

Carlos Bicho

Financial Advisor

Private Banker & Financial Advisor

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Danilson Melicio

Danilson Melicio

Financial Advisor

Financial Markets Investor

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Eurico José Kiala

Eurico José Kiala

Mathematician

Teacher

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Francisco Saramango

Francisco Saramango

Board Financial Advisor

Financial Management and Accounting, Financial management and accounting

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Juliana Mayorca

Juliana Mayorca

Financial Advisor

Board-Level Advisor

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