🏦 FINANCE
Loan Interest Calculator
Estimate monthly payments, total interest, and full amortization schedule.
Your files are processed directly on your device and are not uploaded to our servers.
Loan details
Estimate
Declining balance: fixed principal each month, interest falls as the balance drops.
- First monthly payment
- VND 25,208,333
- Total interest
- VND 54,687,500
- Total to repay
- VND 554,687,500
From VND 25,208,333 in month 1 down to VND 21,015,625 in the last month.
Repayment schedule
| Month | Rate (%/yr) | Payment | Principal | Interest | Balance |
|---|---|---|---|---|---|
| 1 | 10.5% | VND 25,208,333 | VND 20,833,333 | VND 4,375,000 | VND 479,166,667 |
| 2 | 10.5% | VND 25,026,042 | VND 20,833,333 | VND 4,192,708 | VND 458,333,333 |
| 3 | 10.5% | VND 24,843,750 | VND 20,833,333 | VND 4,010,417 | VND 437,500,000 |
| 4 | 10.5% | VND 24,661,458 | VND 20,833,333 | VND 3,828,125 | VND 416,666,667 |
| 5 | 10.5% | VND 24,479,167 | VND 20,833,333 | VND 3,645,833 | VND 395,833,333 |
| 6 | 10.5% | VND 24,296,875 | VND 20,833,333 | VND 3,463,542 | VND 375,000,000 |
| 7 | 10.5% | VND 24,114,583 | VND 20,833,333 | VND 3,281,250 | VND 354,166,667 |
| 8 | 10.5% | VND 23,932,292 | VND 20,833,333 | VND 3,098,958 | VND 333,333,333 |
| 9 | 10.5% | VND 23,750,000 | VND 20,833,333 | VND 2,916,667 | VND 312,500,000 |
| 10 | 10.5% | VND 23,567,708 | VND 20,833,333 | VND 2,734,375 | VND 291,666,667 |
| 11 | 10.5% | VND 23,385,417 | VND 20,833,333 | VND 2,552,083 | VND 270,833,333 |
| 12 | 10.5% | VND 23,203,125 | VND 20,833,333 | VND 2,369,792 | VND 250,000,000 |
How to use
- Enter the loan amount, annual interest rate, and term in months.
- Pick declining balance or annuity, then compare monthly payments and total interest.
- Open the schedule or export CSV to keep a copy for the bank discussion.
FAQ
- Declining balance vs annuity — which is cheaper?
- With the same rate and term, declining balance costs less total interest because you repay principal faster. Annuity keeps payments flat, which is easier on monthly cash flow.
- Is the monthly rate just the annual rate divided by 12?
- Yes, Vietnamese banks commonly quote the annual rate and divide by 12 for the monthly schedule. This tool follows that convention.
- Does this include fees or insurance?
- No. The estimate covers principal and interest only. Origination fees, insurance, and penalties are set by each bank and added separately.
- Is my loan data uploaded anywhere?
- No. The whole schedule is computed in your browser. Nothing leaves your device.