Loan Amortization Schedule — 3 Repayment Methods Compared
Switch between amortized, equal-principal, and interest-only balloon and watch the payment, interest, and balance change row by row
Enter the loan amount, annual rate, and term in months or years, then pick a repayment method — equal total payments (amortized), equal principal, or interest-only with a balloon payoff — and get a full monthly schedule with the payment, principal, interest, and remaining balance on every row. Switching methods shows exactly how total interest cost and total repayment shift, which is the comparison you want when choosing loan terms or working out what you'd still owe partway through. All math happens in your browser, so your loan details never leave your device.
🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter the loan amount and the annual interest rate (%).
- Enter the loan term in months or years.
- Pick a repayment method: equal total payment, equal principal, or interest-only with balloon payoff.
- Review the total interest cost, total repaid, and the monthly amortization schedule, then copy the summary if you need it.
FAQ
- What's the difference between equal total payments and equal principal payments?
- With equal total payments, the amount you pay each month (principal plus interest) stays the same throughout. With equal principal, you repay the same slice of principal every month, so payments start higher and shrink over time — and you pay less total interest.
- What is interest-only with a balloon payoff?
- You pay only interest each month and repay the entire principal in a single lump sum at maturity. Monthly payments are the lowest of the three methods, but the total interest cost is the highest.
- Are my loan details saved on a server?
- No. Every calculation runs inside your browser, and nothing you enter is transmitted or stored.