FreeCalculators

Small Business Loan Calculator

Use our Small Business Loan Calculator to determine monthly payments and total interest for various loan types. Plan your business finances effectively.

Business & Tax · Reviewed by FreeCalculators Editorial · Updated 2026-09-01

How it works

Enter your loan details to see monthly payments, total interest, and the effective rate including fees. Business financial metrics tell you whether your company is healthy, growing, or in trouble. Profit margin, cash flow, and break-even point are the three numbers every business owner should know by heart. These metrics change monthly, so review them regularly rather than once a year when your accountant sends the tax return. Business financial metrics tell you whether your company is healthy, growing, or in trouble. Profit margin, cash flow, and break-even point are the three numbers every business owner should know by heart. These metrics change monthly, so review them regularly rather than once a year when your accountant sends the tax return. Business financial metrics tell you whether your company is healthy, growing, or in trouble. Profit margin, cash flow, and break-even point are the three numbers every business owner should know by heart. These metrics change monthly, so review them regularly rather than once a year when your accountant sends the tax return.

Tips

  • Start with the default values to see a baseline result, then change one input at a time to understand which factor matters most for your outcome.
  • Replace every default with your actual number — estimates and rules of thumb produce estimates, not answers. Pull your real figures from pay stubs, statements, or account dashboards.
  • Run the numbers quarterly, not annually. Tax brackets, revenue, and expenses shift throughout the year, and adjusting early is far cheaper than correcting at year-end.

Frequently asked questions

What is the average SBA loan interest rate?
SBA 7(a) loans typically range from 5.5% to 8% depending on the prime rate and loan size. SBA 504 loans offer lower rates for real estate and equipment.
How accurate are the calculator results?
The math is exact — the same formulas a financial professional would use by hand. The precision of the output depends entirely on how realistic your inputs are. Use your actual numbers rather than estimates when possible. The defaults are reasonable starting points, but your real income, rates, and timeline will produce a different result.
What should I enter for loan amount?
Enter your actual loan amount value. The default of 100000 dollars is a common starting point, but replace it with your real figure for an accurate result.