住宅ローン計算機
価格・金利・返済期間から月々の返済額・総利息・総費用を見積もります。
100% client-side · no upload
Loan Amount
$320,000
Monthly Payment
$2,129
Total Interest
$446,440
Total Cost
$846,440
How to use the mortgage calculator
- Enter the home price and your down payment amount.
- Input the annual interest rate offered by your lender.
- Choose your loan term — 15 or 30 years are most common.
Common use cases
- Shopping for a home: See how much monthly payment different price points require.
- Comparing loan terms: A 15-year mortgage costs less total interest but has higher monthly payments.
- Rate sensitivity: See how a 0.5% rate change affects your payment over 30 years.
Related tools: Amortization Schedule · House Affordability Calculator · Compound Interest Calculator · All Finance Tools
よくある質問
- Is this mortgage calculator free?
- Yes, completely free with no signup required. All calculations run in your browser.
- Does my data leave my device?
- No. Your home price, income, and financial details never leave your device.
- Does it work on mobile?
- Yes. The mortgage calculator is mobile-first and works on iPhone Safari and Android Chrome.
Last updated: By jarvisbox