Loan Payment Calculator
Calculate estimated monthly loan payments, total interest, and total cost
Monthly Payment
$0.00
Total Interest
$0.00
Total Payment
$0.00
How to Use This Loan Payment Calculator
- Enter the total Loan Amount (or total purchase price of the property/vehicle).
- Specify your Annual Interest Rate percentage.
- Set the Loan Term in years (e.g., 15 or 30 years for mortgages, 3–6 years for auto loans).
- Enter any upfront Down Payment amount.
- Click “Calculate Monthly Payment” to determine your estimated fixed recurring obligation.
Monthly Payment Amortization Formula
Fixed-rate loan payments are derived using the standard annuity payment formula:
PMT = P × [ r(1 + r)ⁿ ] / [ (1 + r)ⁿ – 1 ]
Where: P = Principal Loan Amount (Total Loan – Down Payment), r = Monthly Interest Rate (Annual Rate ÷ 12), n = Total Payments (Years × 12).
Where: P = Principal Loan Amount (Total Loan – Down Payment), r = Monthly Interest Rate (Annual Rate ÷ 12), n = Total Payments (Years × 12).
Frequently Asked Questions (FAQ)
Does this calculation include property tax or home insurance?
This calculator computes Principal and Interest (P&I). Extra escrow costs such as property taxes, homeowners insurance, or PMI are not included and should be added separately to your budget.
How does a higher down payment affect monthly payments?
Increasing your down payment reduces the total principal borrowed ($P$). This directly lowers both your recurring monthly payment and the total cumulative interest paid over the life of the loan.
Is a shorter loan term always better?
Shorter terms (e.g., 15 years vs. 30 years) carry higher monthly obligations, but substantially reduce overall interest expense and build equity much faster.