What is a Home Loan?
A home loan (or mortgage) is a secured financing arrangement where a bank or housing finance
company provides capital to purchase, construct, or renovate residential property. The
purchased property acts as collateral until the borrowed principal and accrued interest are
paid in full.
Housing loans are structured across extended amortizations—commonly ranging from 10 to 30
years. Because the borrowing sums are substantial and tenures are long, interest obligations
often surpass the original principal borrowed. Understanding how monthly EMI payments divide
between principal reduction and interest cost is critical for sound real estate financing.
How to Use the Home Loan Calculator
Evaluate your prospective mortgage obligations with precision in four steps:
1
Specify Loan Balance
Enter the net loan amount required after deducting your upfront
down payment.
2
Input Quoted Interest Rate
Enter the annual interest rate quoted by your mortgage lender or
banking institution.
3
Select Mortgage Tenure
Choose your preferred repayment horizon in years (e.g. 15, 20, or
25 years).
4
Examine Monthly Outflow
Review your exact monthly EMI, total interest liability, and
complete principal payout.
Home Loan EMI Formula
Banks calculate equal monthly housing installments using the reducing balance amortization
formula:
Example Calculation Walkthrough
Consider a homebuyer financing a residential apartment with a net home loan of
₹40,00,000 at 8.5% annual interest for a duration of
20 years (240 months):
- Loan Principal (P) ₹40,00,000.00
- Monthly Rate (r) 8.5% ÷ 12 = 0.7083% per month
- Installments (n) 20 × 12 = 240 months
- Monthly Installment (EMI) ₹34,713.00
- Total Principal Repayment ₹40,00,000.00
- Total Cumulative Interest ₹43,31,120.00
- Total Overall Payment ₹83,31,120.00
