NumSmith

Mortgage calculator

Monthly principal & interest plus taxes, insurance and HOA for a home purchase.

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For reference only

Results use standard formulas and published rates. Actual figures may differ due to personal deductions, institution rules and rounding. Do not rely on this alone for legal or financial decisions.

When to use this

See the real monthly cost of a home, not just the loan payment. Add property tax, homeowners insurance and HOA dues to get the number that actually leaves your account each month, and the total cost over the life of the loan.

How to use it

  1. Enter home price and down payment.
  2. Enter the interest rate and term in years.
  3. Optionally add yearly tax, insurance and monthly HOA to see the total monthly cost.

Frequently asked questions

What down payment do I need?
Conventional loans often want 20% to avoid mortgage insurance; many programs accept 3–10%. The calculator shows your down payment percentage.
Is PMI included?
Not automatically. If your down payment is under 20%, add the estimated PMI to the insurance field.

When people use this

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