CalcRoyal • Loan Repayment Calculator (EN/KR/JP/CN)

CalcRoyal

Loan Repayment Calculator

Real-time payment, interest, and amortization schedule with charts.

Monthly Payment
$0
Total Interest
$0
Total Payment
$0

Principal vs Interest

Balance Over Time

Amortization Schedule

# Payment Principal Interest Balance
© 2025 CalcRoyal

Loan Repayment Calculator

Real-time interest, payment calculation, and amortization chart. (EN / KR / JP / CN)

Calculation Formulas

1 Equal Payment (Annuity)

Pay the same total amount each month.

Monthly Payment = P × r × (1 + r)n / [(1 + r)n − 1]

  • P = Loan Principal
  • r = Monthly Interest Rate (Annual Rate ÷ 12)
  • n = Total Number of Payments (months)
2 Equal Principal

The principal repaid each month is constant, and interest decreases over time.

  • Monthly Principal = P / n
  • Monthly Interest = Remaining Balance × r

Disclaimer

This calculator is provided for informational and reference purposes only. Results are estimates and should not be considered as financial or investment advice. Always consult with a qualified professional before making any investment or financial decisions.