How to use the Loan Payment Calculator
Estimate the fixed monthly payment, total repayment, and interest for an amortizing loan. Enter the requested values, review their units, and select Calculate. The result panel shows both the answer and the substituted steps.
The formula
M = P[r(1+r)^n] ÷ [(1+r)^n − 1]
Frequently asked questions
Does the payment include taxes and insurance?
No. The result models principal and interest only unless those costs are added separately.
Why can a quoted lender payment differ?
Fees, day-count conventions, insurance, escrow, rounding, and payment timing can change an actual payment.
Important notes
Results are estimates based on the values supplied and the formula shown. Round only at the end of a calculation, and verify safety-critical, medical, financial, or construction decisions with an appropriate professional.