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Car Loan Calculator (Vietnam)

Calculate monthly car loan payments using either the flat-rate or reducing-balance method used by Vietnamese banks. Supports 500M VND cars with 30% down payment.

Car Price

₫

Down Payment

Annual Interest Rate

%/year

Loan Term

years

Interest Method (1=Flat, 0=Reducing)

Fill in the fields above and click Calculate to see your results.

How to use

Calculate monthly car loan payments using either the flat-rate or reducing-balance method used by Vietnamese banks. Supports 500M VND cars with 30% down payment.

How it's calculated

Loan Amount

car_price * (1 - down_payment_pct / 100)

Principal amount borrowed after down payment

Loan Term (months)

loan_years * 12

Total number of monthly payments

Monthly Interest Rate

annual_rate / 100 / 12

Monthly interest rate used for reducing-balance calculation

Flat-Rate Monthly Payment

(car_price * (1 - down_payment_pct / 100) + car_price * (1 - down_payment_pct / 100) * annual_rate / 100 * loan_years) / (loan_years * 12)

Monthly payment using flat-rate method (common in VN banks)

Reducing-Balance Monthly Payment

car_price * (1 - down_payment_pct / 100) * (annual_rate / 100 / 12) / (1 - pow(1 + annual_rate / 100 / 12, -(loan_years * 12)))

Monthly payment using reducing-balance method

Your Monthly Payment

use_flat_rate * ((car_price * (1 - down_payment_pct / 100) + car_price * (1 - down_payment_pct / 100) * annual_rate / 100 * loan_years) / (loan_years * 12)) + (1 - use_flat_rate) * (car_price * (1 - down_payment_pct / 100) * (annual_rate / 100 / 12) / (1 - pow(1 + annual_rate / 100 / 12, -(loan_years * 12))))

Monthly payment based on selected interest method

Total Payment

(use_flat_rate * ((car_price * (1 - down_payment_pct / 100) + car_price * (1 - down_payment_pct / 100) * annual_rate / 100 * loan_years) / (loan_years * 12)) + (1 - use_flat_rate) * (car_price * (1 - down_payment_pct / 100) * (annual_rate / 100 / 12) / (1 - pow(1 + annual_rate / 100 / 12, -(loan_years * 12))))) * loan_years * 12

Total amount paid over the full loan term

Total Interest Paid

Total interest paid over the loan term

Examples

500M VND car, 30% down, 8.5% flat rate, 5 years

Car Price:500,000,000
Loan Term:5
Annual Interest Rate:8.5
Interest Method (1=Flat, 0=Reducing):1
Down Payment:30

500M VND car, 30% down, 8.5% reducing balance, 5 years

Car Price:500,000,000
Loan Term:5
Annual Interest Rate:8.5
Interest Method (1=Flat, 0=Reducing):0
Down Payment:30

Frequently Asked Questions

What is the difference between flat-rate and reducing-balance car loans in Vietnam?

Flat-rate (lãi suất phẳng) calculates interest on the original loan amount for the entire term, making monthly payments equal but total interest higher. Reducing-balance calculates interest only on the outstanding principal, so interest decreases each month. For the same nominal rate, flat-rate loans cost significantly more — a stated 8.5% flat rate is equivalent to roughly 15–16% reducing balance.

What down payment do Vietnamese banks require for car loans?

Most Vietnamese banks require a minimum down payment of 20–30% of the car's value. Some banks offer 10–15% down for customers with strong credit history. A higher down payment reduces your monthly burden and total interest paid.

What are typical car loan interest rates in Vietnam?

As of 2025, car loan interest rates at major Vietnamese banks range from 7–10% per year for flat-rate loans and 12–18% for reducing-balance loans. Promotional rates as low as 5–6% flat are sometimes offered for new models. Always compare the effective annual rate (EAR) rather than the nominal rate.