ToolForge

住宅ローン負担可能額計算機

Loan affordability calculator: estimate maximum affordable payment and loan from income and debt ratio for home buying, with one-click copy and offline.

使い方

月収・負債率・頭金比率・金利・期間を入力すると、負担可能額と総返済額がリアルタイムで推定されます。

Overview

Loan Affordability Calculator is a Finance tool. Estimate maximum affordable payment and loan from income and debt ratio for home buying, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Loan Affordability Calculator: Enter income, debt ratio, down payment, rate and term. Affordable amount and total payment update live. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Loan Affordability Calculator offline or on poor network — all calculations stay local and private.
  • Compare mortgage amortization
  • Estimate take-home and tax

How to use

  1. 1 Enter income, debt ratio, down payment, rate and term. Affordable amount and total payment update live..
  2. 2 Toggle repayment methods to compare interest
  3. 3 Review schedule and charts
  4. 4 Copy or export details

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Excludes fees/insurance
  • Check prepayment penalties
  • Nominal vs effective rate may differ

FAQ

Why a few dollars off from bank?
Day-count and rounding differences within 0.1%.
Equal payment vs equal principal?
Equal payment is steady; equal principal saves total interest but starts higher.
How is Loan Affordability Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “loan affordability” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search.
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すべての計算はブラウザ内で実行され、データはアップロードされません。