What is an amortization schedule?

An amortization schedule is a complete table showing each installment payment on a loan, detailing how much goes to principal and how much goes to interest.

Does paying extra principal save money?

Yes, making additional payments directly toward your loan principal reduces the outstanding balance, shortening your term and saving you interest over time.

What is the difference between secured and unsecured loans?

Secured loans require collateral (like a house or car) that the lender can seize if you default, whereas unsecured loans (like personal loans) require no collateral but usually carry higher rates.

How does credit score affect loan rates?

Lenders use credit scores to evaluate risk. A higher credit score typically qualifies you for lower interest rates, reducing your borrowing costs significantly.

Can I pay off my loan early?

Most modern personal and auto loans allow early payoff without penalties, but you should always check with your lender for any prepayment penalty clauses.

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Loan Calculator

Determine your monthly loan payments, interest costs, and amortization details. Ideal for auto loans, personal loans, and simple installment loans.

Interactive Loan Calculator Workspace

Live Solver

Loan Amount ($)

Interest Rate (%)

Loan Term

Term Unit

Payment Breakdown

Monthly Payment$489.15regular installment

Total Interest Paid$4,349.22cost of borrow

Total Payments$29,349.22principal + interest

Initial Amortization Schedule (First 6 Months)

Payment	Principal	Interest	Remaining Balance
Month 1	$353.74	$135.42	$24,646.26
Month 2	$355.65	$133.5	$24,290.61
Month 3	$357.58	$131.57	$23,933.03
Month 4	$359.52	$129.64	$23,573.51
Month 5	$361.46	$127.69	$23,212.05
Month 6	$363.42	$125.73	$22,848.63

Mathematical Formula & Variables

Equation ModelM = P * [r(1+r)^n] / [(1+r)^n - 1]

The standard fixed amortization formula calculates the monthly payment needed to fully pay off the loan balance over a chosen period with a fixed interest rate.

Variable Definitions

Symbol	Description
M	Total monthly payment amount
P	Principal loan balance
r	Monthly interest rate (annual rate divided by 12)
n	Total number of monthly payments (term in years multiplied by 12)

How to Use the Loan Calculator

Enter the Total Loan Amount (Principal) you wish to borrow.
Input the Annual Interest Rate offered by your lender.
Select or type the Loan Term in years or months.
Review the computed monthly installment, total interest paid, and cumulative sum of payments.

Practical Example Calculation

Scenario Context: Calculating monthly payment and total interest on a $30,000 auto loan at 5.5% annual interest for 5 years.

Step 1: Identify values: Principal (P) = $30,000, Annual Rate = 5.5%, Term = 5 years.

Step 2: Calculate Monthly Rate (r): 5.5% / 100 / 12 = 0.0045833.

Step 3: Calculate Number of Payments (n): 5 * 12 = 60 months.

Step 4: Apply formula: M = $30,000 * [0.0045833 * (1.0045833)^60] / [(1.0045833)^60 - 1].

Step 5: Solve: M = $30,000 * 0.019096 = $572.88 monthly installment.

Step 6: Total interest: ($572.88 * 60) - $30,000 = $4,372.80.

The monthly installment is $572.88 with a total interest of $4,372.80 over 5 years.

Frequently Asked Questions

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