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00 / Free tool

Loan Calculator

Calculate your monthly or biweekly loan payments, total interest cost, and view a full amortization schedule.

01 / Calculator

Loan Calculator

$
$10k$5M
%
1%30%

Monthly Payment

$5,009.49

Total Interest

$50,569

Total Amount Paid

$300,569

Payoff Date

Oct 2031

Principal$250,000Interest$50,569

Principal vs Interest Over Time

$0$60,114$120,228$180,342$240,455$300,569Yr 0Yr 1Yr 1Yr 2Yr 2Yr 3Yr 3Yr 4Yr 4Yr 5
Cumulative Principal PaidCumulative Interest Paid

See how this looks with your real financial data

02 / Notes

How it works

A business loan payment is calculated using the amortization formula, which spreads your repayment evenly over the loan term. Each payment includes both principal (reducing your debt) and interest (the cost of borrowing). Early in the loan, most of your payment goes toward interest. As you pay down the principal, the interest portion shrinks and more goes to principal — this is why an amortization chart shows a crossover pattern.

Formula

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

Where:
  P = Loan principal
  r = Monthly interest rate (annual rate ÷ 12)
  n = Total number of payments

Why it matters for your business

Understanding your loan payments helps you budget accurately and compare financing options. A small difference in interest rate can mean tens of thousands in total cost. Use this calculator to compare loan offers side-by-side before committing.

04 / Next step

Get deeper insights with James FP&A

These calculators are just the start. Connect your accounting data and get automated financial analysis, forecasting, and real-time dashboards.