Finance calculator
Mortgage Calculator
Estimate monthly mortgage payment including property tax and insurance estimates.
About the mortgage calculator
The mortgage calculator estimates monthly payments for a home loan, accounting for down payment.
How to use this calculator
- 1
Enter loan amount
Enter the home price or loan amount.
- 2
Enter down payment
Enter your down payment amount.
- 3
Enter rate and term
Enter the interest rate and loan term in years.
How the calculation works
Loan amount = purchase price − down payment. Payment = P × r(1+r)^n ÷ ((1+r)^n − 1).
Example: 400,000 home, 80k down, 6% for 30 years: ≈ 1,918/month.
How financial calculations work
Most finance calculators use standard formulas: amortization for loans, compound interest for savings, and present/future value for investments. Results are estimates — actual terms may vary based on lender fees, credit score, taxes, and market conditions. Always consult a financial advisor for major decisions.
Understanding key financial terms
APR (Annual Percentage Rate) includes fees and interest. APY (Annual Percentage Yield) reflects compound interest. DTI (Debt-to-Income) ratio measures monthly debt payments against gross income. Lenders typically prefer DTI below 36%. CAGR (Compound Annual Growth Rate) smooths investment returns over time.
Important limitations
This tool provides a mathematical estimate based only on the values entered. It does not account for regulations, taxes, lender fees, market conditions, or individual circumstances. Results are for planning purposes only — consult a qualified professional for regulated, medical, financial, or construction decisions.
Frequently asked questions about mortgage calculator
How accurate is the mortgage calculator?+
The calculation follows the displayed formula and retains full numeric precision before formatting the result.
Can I use the result professionally?+
Use it as a planning estimate. Confirm regulated, medical, financial, or construction decisions with a qualified professional.