Calcitda

US mortgage estimate

US Mortgage Calculator

Estimate a fixed-rate monthly housing payment from home price, down payment, interest rate, taxes, insurance and PMI. It is not a loan approval or lender quote.

Estimated monthly payment

Enter values to calculate Calculation basis date: May 17, 2026. Fixed-rate amortization estimate.

Inputs

Calculation basis
  • Principal and interest use a fixed-rate amortization formula.
  • Property tax, insurance and PMI are added from user-entered estimates.

Calculation Basis and Official Sources

Calculation basis date: May 17, 2026. Uses a standard fixed-rate amortization approach and user-entered tax, insurance and PMI assumptions.

Before borrowing, compare lender Loan Estimates, CFPB guidance, state requirements and qualified mortgage or legal advice.

Formula and Interpretation

Formula

Loan amount equals home price minus down payment. The monthly principal and interest payment is calculated from loan amount, monthly rate and loan term, then estimated escrow items are added.

How to read it

Use this to compare scenarios. A lender quote can differ because of credit score, points, APR, PMI, taxes, insurance, HOA dues and closing costs.

Before You Rely on the Result

Practical examples

Compare a 20% down payment with a 10% down payment to see LTV and PMI pressure.

Test 6.0%, 6.5% and 7.0% rates to see monthly sensitivity.

Add estimated property tax and insurance to avoid looking only at principal and interest.

What this includes

  • Principal and interest estimate
  • User-entered property tax, insurance and PMI
  • Loan-to-value estimate

What this does not include

  • Loan approval, APR, points, closing costs and lender fees
  • HOA dues, maintenance, utilities and future escrow adjustments
  • Adjustable-rate resets and refinance assumptions

When to check official sources

Use lender disclosures, CFPB resources and a qualified mortgage or legal adviser before signing a loan or purchase contract.