Business Loan Calculator
Calculate your monthly business loan payment and total interest.
Enter your numbers and select Calculate to see results.
About This Calculator
This calculator estimates your monthly payment for a fixed-rate business loan or SBA loan, based on the loan amount, interest rate, and term — plus your total interest cost over the life of the loan.
How This Is Calculated
M = P [ i(1+i)^n ] / [ (1+i)^n − 1 ]
- M
- — Monthly payment
- P
- — Loan amount
- i
- — Monthly interest rate (APR ÷ 12)
- n
- — Loan term in months
A $150,000 loan at 9.5% for 7 years has a monthly payment of about $2,452.
Assumptions
- Assumes a fixed interest rate and standard monthly amortization.
- Does not include origination fees, which many business loans (including SBA loans) charge upfront.
Frequently Asked Questions
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Last updated January 15, 2026. Results are estimates for informational purposes only — read our disclaimer.