Loan Calculator — USA

Calculate monthly payments, total interest, and amortization schedule for US loans.

Loan Details

Loan Amount

Annual Interest Rate (APR)

Loan Term

Yrs

Start Date

Results

Enter loan details and click Calculate

Loan Calculator — Calculate Your Monthly Payment Before You Borrow

A loan calculator helps you determine your exact monthly payment before signing any loan agreement. By entering the loan amount, annual interest rate, and loan term, you instantly see how much you'll pay each month, how much total interest you'll owe, and the complete amortization schedule. This lets you compare offers from multiple lenders and choose the loan that fits your budget.

In the United States, personal loan rates typically range from 7%–36% APR depending on your credit score, auto loan rates from 5%–15%, and mortgage rates around 6%–8%. Even a 1% difference in rate on a $25,000 loan over 5 years saves you over $650 in interest. Use this calculator before approaching any bank — Chase, Wells Fargo, Bank of America, or credit unions — so you know exactly what to expect.

What is a Loan?

A loan is a financial arrangement where a lender provides a lump sum of money to a borrower, who agrees to repay it with interest over a set period through fixed monthly payments. Loans are available from banks, credit unions, online lenders, and the federal government for a variety of purposes.

Loans are classified as secured (backed by collateral like a home or vehicle — lower rates) or unsecured (no collateral required — higher rates due to greater lender risk). Most personal loans are unsecured.
The monthly payment is calculated using the standard amortization formula: Payment = P × r × (1+r)ⁿ / [(1+r)ⁿ − 1], where P is the principal, r is the monthly rate (APR ÷ 12), and n is the term in months.
Your FICO credit score (300–850) is the primary factor determining your interest rate. A score above 720 qualifies you for the best rates; below 620, you may face high-rate loans or need a co-signer.
The APR (Annual Percentage Rate) includes both the interest rate and lender fees, making it the true cost of borrowing. Always compare APRs — not just interest rates — when shopping lenders.

How to Use This Calculator

Enter the Loan Amount — the total amount you want to borrow (e.g., $25,000).
Enter the Annual Interest Rate — use the APR quoted by your lender (e.g., 8.5%).
Set the Loan Term in years and/or months (e.g., 5 years = 60 months).
Optionally select a Start Date to see your exact repayment schedule.
Click Calculate — your monthly payment, total interest, and full amortization table appear instantly.
Adjust values to compare scenarios — shorter term vs lower payment, different rates, etc.

Loan Payment Formula

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

P = Principal loan amount
r = Monthly interest rate = APR ÷ 12 ÷ 100
n = Loan term in months
Example: $25,000 at 8.5% APR for 5 years (60 months)
r = 8.5 ÷ 12 ÷ 100 = 0.007083
Monthly Payment = 25,000 × 0.007083 × (1.007083)⁶⁰ / [(1.007083)⁶⁰ − 1]
Monthly Payment = $513/month
Total Payment = $30,780 | Total Interest = $5,780

Key Terms

APR (Annual Percentage Rate): The true annual cost of borrowing, including interest rate plus all lender fees and charges. Always compare APRs — not just interest rates — when shopping for loans. A loan with a 7% rate and 2% origination fee has a higher APR than one with a 7.5% rate and no fees.
Principal: The original amount borrowed. Each monthly payment reduces the outstanding principal — this process is called amortization. Early payments go mostly toward interest; later payments go mostly toward principal.
Loan Term: The repayment period. Shorter terms mean higher monthly payments but less total interest. A $25,000 loan at 8.5% costs $5,780 in interest over 5 years but only $3,397 over 3 years — saving $2,383 by choosing the shorter term.
FICO Score: Your credit score (300–850), calculated by Fair Isaac Corporation and used by most US lenders. Scores above 720 qualify for the best rates. Below 620, you may face subprime rates or rejection. You can check your score free at AnnualCreditReport.com.
Origination Fee: A one-time upfront fee charged by some lenders, typically 1%–8% of the loan amount. On a $25,000 loan, a 3% origination fee costs $750. This fee is often deducted from the loan proceeds, so you receive less than the full loan amount.
Prepayment Penalty: A fee some lenders charge if you pay off your loan early. Most personal loans today have no prepayment penalty, but always check the loan agreement. If there's no penalty, paying extra each month can save significant interest.

Tips for US Borrowers

Always compare the APR, not just the interest rate. APR includes fees and reflects the true cost of the loan.
Check your FICO score before applying — a score above 720 can cut your rate by several percentage points. Use AnnualCreditReport.com for a free report.
Consider credit unions — they often offer lower rates than banks, especially for members with good credit.
Watch for origination fees — a "no-fee" loan at a slightly higher rate may be cheaper than a low-rate loan with a large origination fee.
Prequalify with multiple lenders — most do a soft credit pull that doesn't affect your score, so you can shop freely.
For home loans, mortgage interest is tax-deductible if you itemize deductions. Student loan interest up to $2,500/year may also be deductible depending on income.

Frequently Asked Questions

A FICO score of 720 or above is generally considered excellent and qualifies you for the best available rates. Scores of 670–719 are "good" and still get competitive rates. Below 620 is considered subprime — you may face rates above 20% APR or need a co-signer. Improving your score before applying can save thousands over the loan term.

The interest rate is the base cost of borrowing the principal. The APR (Annual Percentage Rate) includes the interest rate plus all lender fees — origination fees, closing costs, and other charges — expressed as a yearly rate. By law, US lenders must disclose the APR under the Truth in Lending Act (TILA). Always use APR to compare loan offers apples-to-apples.

Significantly. On a $25,000 loan at 8.5% APR: a 3-year term gives a payment of $788/month with $3,397 total interest; a 5-year term gives $513/month with $5,780 total interest. Choosing the shorter term saves $2,383 in interest — at the cost of $275 more per month. If your budget allows, shorter is almost always better.

Yes — common fees include origination fees (1%–8% of the loan amount), late payment fees ($25–$50 or a percentage of the payment), and prepayment penalties (less common today). Some lenders deduct the origination fee from your loan proceeds, so if you need $25,000, you may need to borrow $25,800 to receive the full $25,000. Always read the loan disclosure documents carefully.

Credit unions are member-owned nonprofits and often offer lower interest rates than banks — sometimes 1%–3% lower on personal loans. However, you need to be a member to borrow. Banks offer more convenience and larger loan amounts. Online lenders like SoFi, LightStream, and Marcus often have competitive rates with fast funding. Compare all three before deciding.

Most personal loans in the US today have no prepayment penalty, but always check your loan agreement. Auto loans and mortgages sometimes have prepayment clauses. If there's no penalty, paying even $50–$100 extra per month can cut months off your loan term and save hundreds in interest. When making extra payments, confirm with your lender that the extra amount is applied to principal, not future interest.