Loan & Mortgage Calculator
Calculate monthly payments for personal loans, car loans, or home mortgages. Shows total interest payable, total cost, and a full monthly amortization schedule in USD ($) and Khmer Riel (แ).
About & How It Works
Technical calculation logic, standards, and operational details
The Loan & Mortgage Calculator is a full-featured amortization tool for computing monthly installment payments, total interest cost, and the complete payment schedule for any fixed-rate loan โ personal loans, vehicle financing, commercial property mortgages, and microfinance products offered by Cambodian institutions such as ACLEDA Bank, Canadia Bank, Hattha Bank, and licensed MFI operators. It displays results in both US Dollar (USD) and Cambodian Riel (KHR) using a real-time exchange rate toggle, making it practical for Cambodia's dual-currency economy. The full amortization table breaks down every monthly payment into its principal reduction and interest charge components across the entire loan lifespan.
Algorithmic Logic & Calculation
The calculator uses the standard annuity amortization formula: Monthly Payment (M) = P ร [r(1+r)โฟ] / [(1+r)โฟโ1], where P is the principal loan amount, r is the monthly interest rate (annual rate รท 12 รท 100), and n is the total number of monthly payments. Each row in the amortization table computes interest as the outstanding balance multiplied by the monthly rate, with the remainder of the fixed payment applied to principal reduction until the balance reaches zero at the final payment.
Amortization formula follows standard banking practice (equal payment method) consistent with National Bank of Cambodia (NBC) consumer credit disclosure guidelines.
Key Features & Capabilities
Standard Annuity Amortization Formula
Uses the industry-standard fixed-rate annuity formula identical to those used by Cambodian commercial banks.
Full Monthly Amortization Table
Shows every month's payment split into interest charge and principal reduction across the loan lifespan.
USD & Khmer Riel Dual Currency
Displays all amounts in both USD and KHR using a configurable exchange rate.
Total Interest & Cost Summary
Instantly shows total interest paid over the loan term and the total cost of borrowing.
Practical Real-World Use Cases
Home Mortgage Planning in Cambodia
First-time homebuyers compare monthly repayments across different loan tenors (10, 15, 20 years) and interest rates before signing with HATTHA Bank or LOLC.
Vehicle & Motorbike Financing
Car and motorbike buyers calculate the true cost of financing versus paying cash, comparing 12, 24, and 36-month loan terms from Toyota, Honda, and dealer financing.
SME Business Loan Assessment
Small business owners in Phnom Penh assess microfinance loan affordability before borrowing working capital from MFI operators.
How to Use
- Enter the loan amount (principal).
- Enter the annual interest rate (e.g. 8.5%).
- Specify the loan term in months or years.
- View the monthly installment, total interest, and breakdown schedule.
Complete Guide to Cambodian Riel (KHR) & Khmer Numerals
An in-depth guide exploring the historical origins of Khmer numerals (แ -แฉ), linguistic counting structures, official National Bank of Cambodia formatting rules, and invoice word spelling.
Frequently Asked Questions
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