Amortization Calculator
View complete loan repayment schedule with principal and interest breakdown
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Total interest paid
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Effective annual %
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Why Use?
Why Use This Amortization Calculator?
What is an Amortization Schedule?
An amortization schedule is a detailed table showing each periodic loan payment broken down into two parts — the portion that goes toward repaying the principal and the portion that covers the interest.
How Amortization Works
When a loan is amortized, you make regular fixed payments throughout the loan term. In the early stages of repayment, a larger share of each payment goes toward interest.
Monthly Payment Formula
The monthly payment is calculated using: PMT = [ r + r / ((1+r)^t - 1) ] × P
Where PMT is the monthly payment, r is the annual rate divided by 12, P is the principal, and t is the total months.
Example: A loan of ₹2,50,000 at 6% for 20 years gives a monthly payment of approximately ₹1,791, with interest and principal portions shifting every month throughout the repayment period.
How to calculate the monthly loan payment
The monthly loan payment can be calculated using a mathematical formula that takes into account the interest rate, the term of the loan, and the principal amount borrowed.
The basic formula looks like this:
PMT = [ r + r / ((1+r)^t -1) ] x P
Where:
- PMT = monthly payment amount
- r = annual interest rate (decimal) / 12
- P = principal loan amount
- t = time in months
- ^ = ... to the power of ...
What the Amortization Schedule Shows You
For every payment period you will see the payment date, total payment amount, how much of that payment reduces the principal, how much goes toward interest, and your remaining loan balance. This helps you understand exactly where your money is going at every stage of the loan.
Note on Spelling
In British English, amortization is written as amortisation — both refer to the same concept of gradually paying off a debt through scheduled periodic payments.