Student Loan & Tuition Calculator (VND)
If you are financing study in Vietnam — your own degree, or a child's overseas education — the loan almost always comes with a grace period that runs while the student is enrolled. During that window you make no principal payments, but interest still accrues and is typically capitalised: added to the loan balance each month so it starts earning interest itself. By graduation, the balance you have to repay is larger than the amount you originally borrowed.
That is the single most important feature of a student loan, and the one borrowers most often underestimate. Working in Vietnamese dong with an illustrative 8%/year rate: a 500.000.000 VND loan with a 24-month grace period (2 years of study) swells to 586.443.966 VND before the first repayment — that is 86.443.966 VND of interest quietly folded into the principal. The amortised repayment over the following 120 months (10 years) is about 7.115.184 VND/month, and the total interest across the life of the loan reaches 353.822.027 VND.
The calculator above takes four inputs — loan amount, annual rate, grace months and repayment term — and returns the three numbers that matter: the balance after the grace period, the monthly payment, and the total interest you will pay. One caveat applies throughout: the 8%/year rate here is an illustrative assumption, not a quote. Real student-loan rates vary by lender, by whether the loan is taken in Vietnam or in the destination country, and by date — and a foreign-currency loan adds exchange-rate risk on top. Enter the rate in your own loan agreement for a realistic result.
How the calculator works
Step 1 — Interest capitalises during the grace period
While the student is enrolled you pay nothing, but each month's interest is added to the balance and compounds in the next month. This is plain compound interest:
Balance after grace = Loan amount × (1 + r)^grace months
| Symbol | Meaning |
|---|---|
| r | Monthly rate = annual rate ÷ 12 ÷ 100 (8%/year → 0.6667%/month) |
| Grace months | Time enrolled, no principal or interest paid |
| Loan amount | Original disbursed principal |
Step 2 — Level amortisation
After the grace period, the capitalised balance is repaid in equal instalments using the standard annuity (EMI) formula:
Monthly payment = Balance × r / (1 − (1 + r)^−n)
where n is the number of repayment months. Early payments are mostly interest on the outstanding balance; later payments are mostly principal. The widget simulates exactly this, so every figure in the worked example below is reproducible.
Why "doing nothing" during study is expensive
Many loans let you pay the interest as it accrues during study instead of letting it capitalise. If you do, the principal never grows and amortisation begins from the original 500.000.000 VND. Comparing the two (same 8%/year, 120-month repayment):
- Capitalised interest: 7.115.184 VND/month, 353.822.027 VND total interest.
- Interest paid during study: 6.066.380 VND/month, 227.965.566 VND total interest.
Letting interest capitalise costs an extra 125.856.461 VND over the life of the loan — a strong argument for servicing interest early if your cash flow allows it.
What the model leaves out
The tool assumes a constant rate for the whole term, monthly capitalisation, and no disbursement fees, loan insurance, currency movements (critical for foreign-currency loans) or early repayment. Treat the output as a scenario, not a lender quote.
Worked example: 500.000.000 VND at an illustrative 8%/year, 24-month grace, 120-month term
Illustrative assumptions: a constant 8%/year rate, interest capitalised monthly during the grace period, then equal amortised payments.
| Phase | What happens | Amount |
|---|---|---|
| Disbursement | Original loan amount | 500.000.000 |
| After 24 months of grace | Interest capitalised | + 86.443.966 |
| Repayment starts | Balance to amortise | 586.443.966 |
| Each month (× 120) | Level payment | 7.115.184 |
| End of term | Total repaid | 853.822.027 |
| End of term | Total interest | 353.822.027 |
Read it in order: you borrow 500.000.000 VND, but 2 years of capitalised grace-period interest adds 86.443.966 VND, lifting the balance to 586.443.966 VND. You then pay 7.115.184 VND a month for 10 years, paying back 853.822.027 VND in total — of which 353.822.027 VND is interest, close to the original amount borrowed.
How much does a shorter grace period save?
With a 12-month grace period instead of 24 months, the balance after grace is only 541.499.753 VND, the monthly payment falls to 6.569.886 VND, and total interest drops to 288.386.349 VND — a saving of 65.435.678 VND versus the 24-month grace. The lesson is simple: the longer interest is allowed to capitalise, the more the loan costs. If your plan lets you pay interest during study, pair this with FiMo's personal-loan and debt-planner tools to compare options.
Frequently asked questions
What does "interest capitalisation" during the grace period mean?
While the student is enrolled you usually make no payments, but interest still accrues. Capitalisation means that interest is added to the loan balance, so the next month you pay interest on the interest too — ordinary compound interest. Under an illustrative 8%/year rate, a 500.000.000 VND loan with a 24-month grace period grows to 586.443.966 VND, meaning 86.443.966 VND of interest is folded in before your first payment.
How much is the monthly payment on a 500 million VND study loan?
It depends on the rate, grace period and repayment term. Under an illustrative 8%/year rate, a 24-month grace period and a 120-month term: the balance after grace is 586.443.966 VND, the payment is about 7.115.184 VND/month, and total interest over the life of the loan is 353.822.027 VND. Enter the actual rate from your loan agreement for a realistic figure.
What is the formula behind the student loan calculator?
Two steps. (1) Balance after grace = Loan × (1 + r)^grace months, where r = annual rate ÷ 12 ÷ 100. (2) Monthly payment = Balance × r / (1 − (1 + r)^−n), where n is the repayment months. Verifiable: 500,000,000 × (1 + 0.6667%)^24 = 586.443.966 VND, then amortised over 120 months gives 7.115.184 VND/month.
Should I pay interest during study or let it capitalise?
If your cash flow allows it, paying interest during study is almost always cheaper because the principal never grows. Same 8%/year, 120-month repayment: capitalising costs 353.822.027 VND of total interest, while servicing interest during study costs only 227.965.566 VND — a difference of 125.856.461 VND. The monthly payment also drops from 7.115.184 to 6.066.380 VND.
Does a shorter grace period save money?
Yes — the shorter the grace period, the less interest capitalises. With a 24-month grace the balance after grace is 586.443.966 VND and total interest is 353.822.027 VND; with a 12-month grace the balance is 541.499.753 VND and total interest 288.386.349 VND — a saving of 65.435.678 VND (same 8%/year, 120-month repayment).
Are the rates in these examples real student-loan rates?
No. The 8%/year used throughout is an illustrative assumption chosen to make the math easy to verify. Actual student-loan rates differ by lender, by whether the loan is taken in Vietnam or the destination country, and by date — and a foreign-currency loan carries exchange-rate risk on top. Enter the rate from your own agreement; the formulas behave identically at any rate.