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住宅ローン計算機

Your true monthly housing cost is more than the loan payment. This calculator adds property tax and insurance so you see the full PITI.

$
$
%
years
%/yr
$/yr

Result will appear here

免責事項: Estimates only. Actual figures depend on lender terms, taxes, and personal circumstances.

計算式

P&I = principal × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1)

よくある質問

  • What is PITI?

    Principal, Interest, Taxes, and Insurance — your full monthly housing payment.

  • How much down payment do I need?

    20% avoids PMI on conventional loans; many programs allow 3–5% down.

  • Should I get a 15 or 30 year loan?

    15-year saves interest dramatically; 30-year gives lower monthly payments and flexibility.