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Loan Amortization Schedule Calculator

Calculate your monthly loan payment and see a full amortization schedule showing principal, interest, and remaining balance for each month.

Written by CalcVault Editorial Team
₫
%
months

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

How to use

To quickly and accurately generate your fully detailed loan amortization schedule, simply input your total principal loan amount, the specific annual interest rate offered by your bank, and the exact desired repayment term in months.

The calculator instantly provides a highly detailed monthly breakdown of your scheduled payments, clearly showing precisely how much money goes toward paying down the principal versus covering the interest. It accurately calculates your total lifetime interest paid and total overall repayment amount. This powerful tool successfully helps many businesses and individuals in Vietnam effectively plan and execute their long-term debt repayment strategies.

How it's calculated

Monthly Interest Rate

annual_rate / 100 / 12

Monthly interest rate used in calculations

Monthly Payment

loan_amount * monthly_rate * pow(1 + monthly_rate, term_months) / (pow(1 + monthly_rate, term_months) - 1)

Fixed monthly payment amount

Total Payment

monthly_payment * term_months

Total amount paid over the loan term

Total Interest

total_payment - loan_amount

Total interest paid over the loan term

Examples

500M VND at 9% for 120 months (10 years)

  • Annual Interest Rate (%):9
  • Loan Amount:500,000,000
  • Loan Term (Months):120

Result

  • Monthly Interest Rate:0.75
  • Total Payment:760,055,040
  • Total Interest:260,055,040
  • Monthly Payment:6,333,792

Successfully borrowing an initial amount of 500 million VND at a highly competitive 9% annual interest rate over a full 10-year period results in a strict required monthly payment of exactly 6.33 million VND. The total accumulated interest over this entire decade will be approximately 260 million VND.

1B VND at 8% for 240 months (20 years)

  • Annual Interest Rate (%):8
  • Loan Amount:1,000,000,000
  • Loan Term (Months):240

Result

  • Monthly Interest Rate:0.67
  • Total Payment:2,007,456,240
  • Total Interest:1,007,456,240
  • Monthly Payment:8,364,401

Taking out a massive 1 billion VND mortgage or business loan locked at an 8% interest rate for a long 20-year term clearly yields a fixed monthly payment of roughly 8.36 million VND. Because of the significantly extended repayment term, the total massive interest naturally exceeds the initial principal amount.

Industry Benchmarks

Metric Typical Range
Average personal loan rate 8.5 %

Data source: SBV 2024

Frequently Asked Questions

What is a loan amortization schedule?

A loan amortization schedule is a comprehensive mathematical table that clearly outlines each periodic payment on a specific loan over its entire lifetime. It precisely breaks down exactly how much of each individual payment goes directly toward reducing the principal balance and how much goes toward paying the interest charges, along with displaying the exact remaining balance after every single payment is made.

Why does more of my early payments go to interest?

In the very early months of a standard amortized loan, your total outstanding principal balance is at its absolute highest point, which naturally means the interest portion of each monthly payment is the largest. As you steadily continue to pay down the principal balance over time, the interest portion gradually decreases and the principal reduction portion continuously increases — this fundamental shift is exactly how standard amortization works.

Can I pay off my loan early?

Yes, absolutely. Deliberately making extra payments directly toward your loan principal effectively reduces your outstanding balance much faster than originally planned. This strategic move means you will ultimately pay significantly less total interest over the life of the loan and can officially pay off the entire debt well ahead of schedule. However, always verify with your specific lender regarding any potential prepayment penalties.

What is the difference between fixed and reducing balance interest?

Fixed flat-rate interest is calculated strictly on the original starting principal amount for the entire duration of the loan term, which typically makes it much more expensive overall. In stark contrast, reducing balance interest is calculated dynamically only on the remaining outstanding loan amount each month, directly rewarding you for paying down the principal.
CalcVault Editorial Team

CalcVault Editorial Team

Verified Content Team

The CalcVault Editorial Team is a group of finance, health, and mathematics specialists dedicated to producing accurate, bilingual calculator content for Vietnamese and global small business owners. Every formula on CalcVault undergoes rigorous source verification against authoritative bodies including the IRS, CFPB, CDC, WHO, and NIST before publication. Our process includes independent peer review, structured fact-checking, and scheduled content audits to ensure every calculator remains up-to-date with the latest regulatory and scientific standards. We are committed to editorial independence from our advertising partners.

Areas of Expertise

Personal FinanceVietnam Tax & PayrollHealth Metrics & BMIApplied MathematicsBusiness LendingSMB Financial Planning
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