Loan Calculator

Compare different loan options side by side.

Last updated: 14 August 2026

Processed locally — your files are not uploaded to any server.

Comprehensive Guide & Specifications

Everything you need to know about using Loan Calculator effectively.

What is Loan Calculator and Why Use It?

This exists for comparison rather than for a single answer: repayments are calculated on a reducing balance, the same basis as an EMI, so different amounts, rates and terms can be put side by side to see what each actually costs. Each scenario reports the monthly payment and the total interest paid, and it is the second of those that changes decisions. Stretching a term lowers the monthly figure while raising the total interest substantially, which is exactly how an expensive loan is made to look affordable, so compare offers on the total repayable rather than on the instalment. Borrowers weighing lenders, or deciding between a shorter term they can just manage and a longer one that feels comfortable, get the clearest view from putting both in and reading both numbers. Fees, insurance and prepayment penalties are excluded and can shift the comparison.

Step-by-Step Instructions

1
Enter total loan amount required from the lending institution.
2
Input annual interest rate and desired repayment term in years or months.
3
Review monthly installment breakdown and total cost of borrowing.

Formula / Calculations Explained

Amortizing Loan Payment Calculation

Monthly Payment = [P × r × (1 + r)^n] / [(1 + r)^n - 1]

Computes periodic payments for personal, mortgage, or auto loans, showing how principal amortizes against total interest costs over time.

Important Considerations

A longer term lowers the monthly payment and raises the total interest, often substantially. Both numbers matter.
Compare offers on the total repayable, not the monthly figure, which can be made attractive simply by stretching the term.
Fees, insurance and prepayment penalties are excluded and can shift the comparison between lenders.

Frequently Asked Questions

How do extra principal payments affect my loan?▼

Making additional principal payments reduces the remaining balance earlier, drastically decreasing total interest paid and shortening loan tenure.

Does this calculator support fixed vs variable rate loans?▼

It calculates standard fixed-rate amortizing loans, providing a reliable baseline for budgeting fixed monthly liabilities.

Will using this calculator impact my credit score?▼

No. This is an independent educational tool running in your browser with zero credit bureau checks or inquiries.

Worked example

Example only — not financial advice

A $250,000 loan at 6.5% over 30 years — a 30-year term, the common default for a mortgage — carries a fixed monthly payment of $1,580.17. Over the full term that adds up to $568,861.22, of which $318,861.22 is interest: on a long low-rate term the interest can still approach the size of the loan itself, which the sample rows below make visible.

Worked example: $250,000 loan at 6.5% for 30 years
Example input	Value
Loan amount	$250,000
Interest rate	6.5%
Loan term	30 years (360 months)
Monthly payment (EMI)	$1,580.17
Total interest payable	$318,861.22
Total repayment amount	$568,861.22

Sample amortization rows for the $250,000 example loan
Month	Payment	Principal	Interest	Balance
1	$1,580.17	$226	$1,354.17	$249,774
12	$1,580.17	$239.84	$1,340.33	$247,205.69
24	$1,580.17	$255.9	$1,324.27	$244,224.23
60	$1,580.17	$310.84	$1,269.33	$234,027.44
120	$1,580.17	$429.83	$1,150.34	$211,940.32
180	$1,580.17	$594.38	$985.79	$181,397.85
240	$1,580.17	$821.92	$758.25	$139,163.21
360	$1,580.17	$1,571.66	$8.51	$0

These figures illustrate how the Loan Calculator computes its result for the example inputs above — they are not a rate offer, a market quote, or a recommendation for your own numbers. Enter your own figures in the calculator above to get a result that applies to you.

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