Simple Mortgage Payment Calculator
The Simple Mortgage Payment Calculator helps estimate a monthly mortgage payment using basic loan math. Enter a home price, down payment, interest rate, loan term, property tax estimate, homeowners insurance estimate, and estimated PMI when applicable.
This tool is designed for educational use. It does not compare lenders, recommend a loan type, predict interest rates, or tell you whether to buy, refinance, wait, apply, or choose one mortgage structure over another.
The calculator separates the estimated monthly payment into principal and interest, property taxes, homeowners insurance, and PMI when the down payment is below 20%.
Mortgage Payment Calculator
Estimate a monthly mortgage payment using simple loan math.
Enter a home price, down payment, interest rate, loan term, property taxes, homeowners insurance, and estimated PMI to calculate an educational monthly payment estimate.
Please review your inputs.
This estimate includes PMI when applicable based on the down payment percentage. It excludes HOA dues, utilities, maintenance, closing costs, lender fees, discount points, and other costs not entered into the tool.
This estimate includes principal and interest, monthly property taxes, monthly homeowners insurance, and PMI when applicable.
How This Mortgage Payment Calculator Works
This calculator estimates a monthly payment by combining four separate parts: principal and interest, property taxes, homeowners insurance, and estimated PMI when applicable.
The estimated loan amount is calculated by subtracting the down payment from the home price. The principal and interest payment is then calculated from the estimated loan amount, interest rate, and loan term.
The result is an estimate, not a quote, approval, offer, or recommendation. Actual payments can vary because taxes, insurance, fees, escrow rules, lender charges, HOA dues, and loan terms may differ.
Inputs Used by the Calculator
The calculator uses the following inputs to build the monthly estimate:
| Input | How It Is Used |
|---|---|
| Home Price | The starting price used to calculate the estimated loan amount. |
| Down Payment | Subtracted from the home price to estimate the amount financed. |
| Interest Rate | Used in the amortization formula for principal and interest. |
| Loan Term | Sets the number of monthly payments in the formula. |
| Property Taxes | Entered as an annual estimate and divided by 12. |
| Homeowners Insurance | Entered as an annual estimate and divided by 12. |
| Estimated PMI | Applied when the down payment is below 20%, using the rate entered in the calculator. |
Principal and Interest
Principal and interest, often shown as P&I, is the part of the monthly payment calculated from the loan amount, interest rate, and loan term.
The principal is the amount borrowed. Interest is the cost calculated from the annual rate entered into the tool. With a fixed-rate amortization formula, each monthly P&I payment stays the same inside the calculator, but the internal mix between principal and interest changes over time.
This calculator shows the monthly P&I estimate as a single number. It does not create a full amortization schedule or show every month of the loan.
Property Taxes
Property taxes are entered as an annual estimate. The calculator divides that number by 12 and adds the monthly amount to the total estimated payment.
For example, if the annual property tax estimate is $3,600, the calculator adds $300 per month to the estimated payment.
This is only a mathematical estimate. Actual property taxes can vary by location, assessed value, local tax rules, exemptions, and future changes.
Homeowners Insurance
Homeowners insurance is also entered as an annual estimate. The calculator divides the annual number by 12 and adds the monthly amount to the total estimated payment.
For example, if the annual homeowners insurance estimate is $1,200, the calculator adds $100 per month to the estimated payment.
The calculator does not estimate insurance pricing. It only uses the number entered into the input field.
Estimated PMI
PMI means private mortgage insurance. In this calculator, PMI is treated as a mathematical input, not as a product recommendation or eligibility decision.
When the down payment is 20% or more, the calculator automatically sets estimated PMI to $0. When the down payment is below 20%, the PMI input becomes editable so you can enter an estimated annual PMI rate.
The calculator estimates monthly PMI by applying the PMI rate to the estimated loan amount and dividing the result by 12.
Actual PMI rules, costs, cancellation timing, and requirements can vary. This tool does not determine whether PMI is required for a specific loan.
Example Calculation
Here is a simple example using the calculator’s default values:
| Field | Example Value |
|---|---|
| Home Price | $300,000 |
| Down Payment | $60,000 |
| Estimated Loan Amount | $240,000 |
| Interest Rate | 6.75% |
| Loan Term | 30 years |
| Annual Property Taxes | $3,600 |
| Annual Homeowners Insurance | $1,200 |
| Estimated PMI | $0 because the down payment is 20% |
Using these values, the calculator estimates the monthly payment by adding the principal and interest estimate, monthly property tax estimate, monthly insurance estimate, and estimated PMI.
Changing any input can change the result. A different interest rate, down payment, loan term, tax estimate, insurance estimate, or PMI estimate will produce a different monthly total.
What This Calculator Does Not Include
This calculator is intentionally limited to simple monthly payment math. It does not include every possible housing or loan cost.
- HOA dues
- Utilities
- Maintenance
- Repairs
- Closing costs
- Lender fees
- Discount points
- Appraisal costs
- Title costs
- Escrow adjustments
- Local fees or taxes not entered into the calculator
Use the result as an educational estimate only. It is not a full cost-of-ownership calculation.
How to Use the Calculator
- Enter the estimated home price.
- Enter either a down payment dollar amount or down payment percentage.
- Enter the annual interest rate used for the estimate.
- Select the loan term used in the calculation.
- Enter annual property taxes.
- Enter annual homeowners insurance.
- If the down payment is below 20%, enter an estimated PMI rate.
- Review the monthly breakdown shown in the result panel.
The calculator updates automatically as the inputs change.
FAQ
What does this mortgage payment calculator estimate?
This calculator estimates a monthly payment using the home price, down payment, interest rate, loan term, property taxes, homeowners insurance, and estimated PMI entered into the tool. It separates the result into principal and interest, taxes, insurance, and PMI when applicable.
What is principal and interest?
Principal and interest, often shown as P&I, is the part of the payment based on the estimated loan amount, interest rate, and loan term. Principal is the amount borrowed. Interest is the cost calculated from the annual interest rate entered into the calculator.
How does the calculator handle property taxes?
Property taxes are entered as an annual estimate. The calculator divides the annual number by 12 and adds that monthly amount to the estimated payment.
How does the calculator handle homeowners insurance?
Homeowners insurance is entered as an annual estimate. The calculator divides the annual number by 12 and adds that monthly amount to the estimated payment. It does not estimate insurance pricing by itself.
How does the calculator handle PMI?
If the down payment is 20% or more, the calculator sets estimated PMI to $0. If the down payment is below 20%, the PMI input becomes editable and the calculator estimates monthly PMI using the rate entered into the tool.
Is this calculator a mortgage quote?
No. This calculator is not a lender quote, approval, offer, recommendation, or financial advice. It is an educational tool that uses the numbers entered into the calculator to estimate a monthly payment.
Educational Use Only
This calculator is provided for educational purposes only. It does not provide mortgage advice, financial advice, tax advice, legal advice, real estate advice, underwriting guidance, or lender recommendations.
Mortgage payments, loan terms, taxes, insurance, PMI, escrow requirements, fees, and approval conditions can vary. A licensed professional or lender can provide information based on a specific situation.