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Small business loan calculator

Calculate a small-business loan monthly payment, total interest, and full amortization schedule from rate and term.

  • USD inputs · transparent calculation assumptions
  • Instant updates as inputs change
  • Data is calculated in this browser only
USD inputs · transparent calculation assumptions
Your scenario
Updates as you type
Monthly loan payment$1,001.90
Original principal
$50,000.00
Total interest
$10,113.85
Total repaid
$60,113.85
Number of payments
60 months
Calculation notes

Understand the Small business loan calculator

The Small Business Loan Payment Calculator validates each input, applies the displayed 2026 assumptions, and calculates monthly payment, total interest, and amortization for a term loan with consistent annual or monthly cash-flow timing.

Formula and logic

How does the Small Business Loan Payment Calculator calculate monthly payment, total interest, and amortization for a term loan?

Small Business Loan Payment Calculator model 9: normalized inputs are combined through the page-specific tax, amortization, margin, or ratio equation; every displayed total is derived from the same scenario.

Worked example

Which inputs have the biggest effect in the Small Business Loan Payment Calculator?

Example 9: enter the prefilled values in the Small Business Loan Payment Calculator; the primary result and supporting metrics update together so one changed assumption can be compared without mixing scenarios.

How to read the result

What does a worked Small Business Loan Payment Calculator example show?

  • Read the primary result together with the supporting monthly payment, total interest, and amortization for a term loan metrics.
  • Change one major assumption at a time to see whether the conclusion is stable.
Limits and assumptions

Which costs or rules are outside the Small Business Loan Payment Calculator?

  • This planning model excludes case-specific eligibility, professional fees, local rules, and future rate or law changes unless the page explicitly includes them.

Content and calculation reviewed: