Documentation

Overview

Loan Repayment Plan Calculator estimates monthly payment, total interest, and total repayment, then builds a full amortization schedule. It supports both equal payment and equal principal methods for mortgage, auto loan, and personal loan planning.

Key Features

  • Supports equal payment and equal principal repayment methods
  • Calculates monthly payment, total interest, total repayment, and interest ratio
  • Generates period-by-period schedule with principal, interest, and remaining balance
  • Provides yearly principal-interest chart for repayment structure analysis
  • Exports repayment schedule as CSV for record keeping and plan comparison

How To Use

  1. Select a loan type and enter amount, loan term, and annual rate.
  2. Choose repayment method: equal payment or equal principal.
  3. Review monthly payment, total interest, and total repayment.
  4. Check paginated schedule details, open chart view, or export CSV when needed.

Repayment Method Notes

  • Equal Payment: Monthly repayment stays nearly fixed, with interest heavier in early periods.
  • Equal Principal: Principal per period is fixed, monthly payment decreases over time, and total interest is usually lower.

Use Cases

  • Estimate mortgage affordability before selecting a property
  • Compare auto loan installment options and total borrowing cost
  • Plan personal loan cash flow and repayment burden
  • Compare offers from multiple lenders with consistent inputs

Notes

  • Results are for planning reference. Final numbers depend on lender approval and contract terms.
  • Rates, fees, and repayment rules may vary by policy and institution.
  • Verify input values before exporting data for decision comparison.
  • All calculations run locally in your browser and do not upload your loan data.