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Loan Calculator

Calculate monthly payments, total interest, and full amortization schedule for any loan.

Live Mortgage Rates· Freddie Mac PMMS
Week of Apr 2, 2026
30-yr fixed6.46%
15-yr fixed5.77%

National average rates from the Freddie Mac Primary Mortgage Market Survey. Your actual rate may vary based on credit score, lender, and location.

Results

Monthly Payment

$198.01

Total Interest

$1,880.72

Total Cost

$11,880.72

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What is a Loan Calculator?

A loan calculator is a financial tool that helps you determine the monthly payment, total interest paid, and full repayment schedule for any type of personal loan, auto loan, or installment debt. By entering the loan amount, interest rate, and repayment term, you can instantly see exactly what you will owe each month and how much the loan will cost in total.

The calculation uses the standard amortization formula, which distributes your payments so that early installments are weighted toward interest and later payments go mostly toward principal. This is why paying extra early in a loan term saves disproportionately more interest.

Understanding your loan terms before signing is one of the most important financial decisions you can make. Even a 1% difference in interest rate on a $20,000 auto loan can mean hundreds of dollars in extra costs over the life of the loan.

How to Use the Loan Calculator

Follow these steps to calculate your loan payment and total cost in seconds.

  1. 1

    Enter the loan amount

    Type the total amount you plan to borrow, before any down payment.

  2. 2

    Enter the annual interest rate

    Input the APR (Annual Percentage Rate) shown in your loan offer, not the monthly rate.

  3. 3

    Set the loan term

    Choose the number of months or years over which you will repay the loan.

  4. 4

    Review your results

    The calculator instantly shows your monthly payment, total interest paid, and total repayment amount.

  5. 5

    Explore the amortization schedule

    Scroll down to see a full month-by-month breakdown of principal vs. interest for every payment.

Live Market Data

Live

Fed Rate

3.64%

Updated 08:00 PM

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Disclaimer: All calculators on CalcHQ are provided for informational and educational purposes only. Results are estimates and do not constitute professional financial, legal, tax, medical, or other advice. Always consult a qualified professional before making decisions. Full Disclaimer