Mortgage Calculator

Estimate monthly mortgage payment with tax, insurance, PMI and HOA.

✏️ Enter your numbers

📋 Year-by-year breakdown

Year Principal paid Interest paid Balance remaining
📊

Click "Calculate payment" to see your amortization schedule

💰 Your monthly payment

Total monthly payment $0.00
Principal + interest $0
Loan amount $0
Total interest $0
Total paid $0
0%
Down payment
0%
Loan-to-value

⚖️ 15 vs 30 year

See the difference in monthly payments

🏦 15-Year fixed $0/mo
Higher payment, less interest overall
🏦 30-Year fixed $0/mo
Lower payment, more interest over time

Formula Used

Monthly payment = P × [r(1 + r)^n] ÷ [(1 + r)^n − 1]
P = principal, r = periodic interest rate, n = number of payments.

How the formula is applied

The calculator applies the entered principal or balance, periodic interest rate, repayment term and any supported fees or extra payments. Payment and interest figures depend on compounding frequency, payment timing and which taxes, insurance or charges are included.

Calculator Description

Mortgage Calculator estimates the payment, balance, payoff or borrowing cost produced by the loan assumptions entered. Estimate monthly mortgage payment with tax, insurance, PMI and HOA. Use it to compare terms and payment scenarios, not as a lender quote.

Frequently Asked Questions

What does the Mortgage Calculator result represent?

It is an estimate generated from the values entered on this page and the calculation method shown in the formula and methodology sections.

How is the Mortgage Calculator formula applied?

The calculator validates the entered values, applies the protected formula shown on the page and then rounds only the displayed result where appropriate.

How can I make the Mortgage Calculator result more accurate?

Use current source values, confirm units and time periods, include every requested cost or measurement, and avoid rounding inputs before the final calculation.

Why might the Mortgage Calculator result differ from another tool?

Different calculators may use different assumptions, time periods, rounding rules, reference standards or included costs. Compare the inputs and limitations before comparing answers.

Can the Mortgage Calculator predict an actual lender, investment, insurance or tax outcome?

No. It provides an estimate from the entered assumptions. Actual rates, fees, taxes, eligibility rules, policy terms and market performance can change the final outcome.

When should I recalculate with the Mortgage Calculator?

Recalculate whenever a material input changes, such as a rate, price, balance, measurement, time period, fee, contribution or project dimension.

How to Use This Calculator

  1. Enter the amount, rate, term and any fees or contributions requested.
  2. Review the values for unit, decimal and time-period consistency.
  3. Select Calculate, Convert or Update to generate the estimate.
  4. Review the main result, detailed breakdown and the result chart when a meaningful visualization is available.
  5. Change one input at a time to compare scenarios before using the result.

Practical example and result check

Enter the expected amount, rate and term, calculate a base case, then increase the rate or shorten the term. Compare the monthly payment and total interest to understand the trade-off between cash flow and borrowing cost.

Before relying on the result

  • Confirm the units, dates, rates and time periods entered.
  • Review which costs, measurements or assumptions are included and excluded.
  • Change one important input at a time to understand the result sensitivity.

Supporting Guides