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Simple Mortgage Calculator.
Estimate principal and interest mortgage payments.
此计算器尚未完全翻译——部分文本以英文显示。
设备端计算无需注册
01
输入数值
输入时结果会更新。
02 / 答案
Monthly payment: US$1,580.17
Total interest: US$318,861.22
Total payment: US$568,861.22
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Cite this calculator
Canonical URL: https://mathify.one/zh/finance/simple-mortgage
Cite as: Mathify. (n.d.). 计算器: Simple Mortgage. https://mathify.one/zh/finance/simple-mortgage
Use Cases
Quick payment estimate
Get a fast estimate of your monthly principal and interest payment for a fixed-rate mortgage, useful for initial budgeting.
Example: Loan amount: $250,000, rate: 6%, term: 30 years → monthly payment ≈ $1,499
Compare loan terms
Compare monthly payments for different loan amounts, rates, or terms to see how they affect your payment.
Example: Compare a 15-year vs. 30-year term at the same rate.
Frequently Asked Questions
- What does this mortgage calculator estimate?
- This calculator estimates your monthly principal-and-interest payment for a fixed-rate mortgage. It does not include property taxes, insurance, or other fees.
- What inputs do I need?
- You need to provide the loan amount, the annual interest rate, and the loan term in years. The calculator uses these to compute your estimated monthly payment.
- Is this calculator for adjustable-rate mortgages?
- No, this calculator is designed for fixed-rate mortgages only. It assumes a constant interest rate over the entire loan term.
Tips & Common Mistakes
Tips
- Enter the loan amount as the total amount you plan to borrow, not the home price.
- Use the current market interest rate for a more accurate estimate.
- Remember that this payment does not include property taxes, homeowners insurance, or PMI.
- Try different terms to see how they affect your monthly payment.
Common Mistakes to Avoid
- Forgetting to convert the annual interest rate to a monthly rate – the calculator does this automatically, but ensure you enter the annual rate.
- Including property taxes or insurance in the loan amount – this calculator only considers principal and interest.
- Using the home price instead of the loan amount – if you make a down payment, use the amount financed.
Last updated: August 13, 2026