Business term loan calculator

The answer

A business term loan calculator estimates your monthly payment and total interest cost by applying an amortization formula to three inputs: loan amount, annual percentage rate (APR), and repayment term in months. Enter these numbers and the calculator instantly shows your monthly payment, total amount paid, and total interest cost. Use one to model different rates and terms before you apply—it takes 2 minutes and requires no application or credit check.

See your estimated payment in 2 minutes — no credit score impact.

The specifics

A term loan calculator works by dividing your principal across all months while layering in declining interest. You pay more interest early in the loan, more principal late. Here's what you need to input:

Loan amount: The dollar figure you're borrowing. According to NerdWallet's June 2026 rate survey, typical small business term loans range from $10,000 to $250,000, though SBA 7(a) loans can reach up to $5 million.

APR (annual percentage rate): Your interest rate. NerdWallet reports that conventional business term loans averaged 10–16% APR in 2026, while SBA 7(a) loans ranged from 9–11% APR. Your actual rate depends on three factors: credit score (640+ FICO for SBA loans), time in business (24+ months for most lenders), and monthly revenue. If you don't know your exact rate yet, use the average for your credit tier as a starting point.

Term (repayment period in months): How long you have to pay back the loan. Most business term loans run 36–84 months, with SBA 7(a) equipment loans extending up to 84 months. A shorter term means higher monthly payments but less total interest; a longer term spreads payments out but costs more overall.

Once you input these three numbers, the calculator returns:

• Monthly payment amount (principal + interest, excluding origination fees)
• Total amount paid over the life of the loan
• Total interest cost

Example: A $50,000 loan at 10% APR over 60 months calculates to roughly $1,061 monthly, with approximately $13,663 in total interest paid over the life of the loan.

Qualification & edge cases

The calculator's output is only as accurate as the APR you plug in. If you don't know your exact rate, start with the average for your credit profile. According to NerdWallet's June 2026 lending data:

• Excellent credit (740+): Typically 8–10% APR on conventional loans
• Good credit (700–739): Typically 10–12% APR
• Fair credit (620–680): Typically 12–16% APR or higher

Lenders require that your monthly loan payment not exceed 40–43% of your gross monthly revenue. If your projected monthly payment is $1,100 and your monthly revenue is $3,000, you're at 36.7% debt service—safe. But if your revenue is $2,000, you're over the typical threshold and may be declined or offered a longer term to lower the payment. You can verify your debt-service-coverage ratio using our affordability calculator before you apply.

Also account for origination fees. According to the Capital Bank 2026 lending statistics, typical origination fees are 1–3% of the loan amount and are often rolled into the principal, slightly raising your monthly payment. If your lender charges 2% origination on a $50,000 loan, add $1,000 to your financed amount—it gets amortized across your term.

If you're concerned about being declined, calculate your debt-service-coverage ratio (monthly payment ÷ monthly revenue) first. Most lenders want to see a minimum ratio of 1.25×, meaning your monthly revenue should be at least 1.25 times your monthly payment.

How business term loan calculators work

A business term loan is a fixed-amount loan you repay over a set monthly schedule. Unlike a business line of credit, where you draw as needed and pay interest only on what you use, a term loan disburses the full amount upfront. You then make equal monthly payments until the loan is paid off.

Calculators automate the amortization math. Without one, you'd calculate by hand: take your monthly interest rate (APR ÷ 12), apply it to the remaining balance, subtract the principal portion, and repeat for every month. A calculator does this instantly across 36–84 months.

According to Credit Suite's 2026 small business lending trends, term loans remain the most common form of business borrowing because they offer predictable payments and are often used for working capital, equipment purchase, or cash flow bridging. Understanding your exact payment before you apply reduces surprises and helps you budget accurately.

When you enter your numbers, the calculator also shows you how much of each early payment goes to interest versus principal. This helps you see why paying off a term loan faster saves you money—extra payments reduce the balance faster, which means less interest accrues over time.

Bottom line

A business term loan calculator gives you a clear picture of your monthly cost and total interest before you commit to a loan. Plug in your loan amount, estimated APR (use averages if you don't have a quote yet), and desired term to see the exact numbers. Then verify your affordability against your monthly revenue using a debt-service-coverage check—if your payment exceeds 40–43% of monthly revenue, adjust the term or amount downward or explore alternative structures with your lender.

Sources

• NerdWallet: Average Business Loan Interest Rates
• Capital Bank: 10 Statistics to Know When Taking Out Business Loans
• Credit Suite: Small Business Lending Statistics & Trends in 2026

Disclosures

This content is for educational purposes only and is not financial advice. businessfundingrates.com may receive compensation from partner lenders, which may influence which products are featured. Rates, terms, and availability vary by lender and applicant qualifications.