How to Calculate EMI Manually " Step-by-Step Guide (2026)
Whether you're planning a home loan, car loan, or personal loan, understanding how to calculate EMI manually gives you complete control over your finances. The EMI (Equated Monthly Installment) formula may look complex, but once you break it down step by step it becomes straightforward. In this guide you will learn the exact formula, see real worked examples, and discover how to verify your answer using our free EMI calculator.
P = Loan amount | r = Monthly interest rate | n = Tenure in months
→ Skip the math " Use Free EMI Calculator
What is EMI?
EMI (Equated Monthly Installment) is the fixed monthly payment you make to repay a loan. Every EMI contains two parts:
- Principal Component " The portion that reduces your outstanding loan balance.
- Interest Component " The bank's charge for lending money.
In the early months, the interest portion is larger. Over time, as you repay principal, the interest portion shrinks. This process is called amortization.
The EMI Formula
Where:
P = Principal loan amount (how much you borrow)
r = Monthly interest rate = Annual Rate 12 100
n = Loan tenure in months (years — 12)
Step-by-Step Example
Let's calculate the EMI for a 10,00,000 home loan at 8.5% annual interest for 20 years (240 months).
Step 1: Find the monthly interest rate (r)
r = 8.5 12 100 = 0.007083
Step 2: Calculate (1+r)
(1 + 0.007083) = 5.3027 (approximately)
Step 3: Apply the EMI formula
EMI = 10,00,000 — 0.007083 — 5.3027 / (5.3027 1)
EMI = 10,00,000 — 0.037573 / 4.3027
EMI 📧 8,678 per month
Total Amount Paid: 8,678 — 240 = 20,82,720
Total Interest Paid: 20,82,720 10,00,000 = 10,82,720
Quick Reference EMI Table
| Loan | Amount | Rate | Tenure | EMI |
|---|---|---|---|---|
| Home Loan | 30L | 8.5% | 20 yr | 26,035 |
| — Car Loan | 8L | 9.5% | 5 yr | 16,729 |
| Personal Loan | 2L | 14% | 3 yr | 6,817 |
Use Our Free EMI Calculator
Calculating EMI manually is great for learning, but for real financial decisions use our free tool for instant, accurate results with full amortization breakdown.
Calculate Your Exact EMI " Free!
Enter loan amount, interest rate, and tenure to get your monthly EMI, total interest, and full payment schedule in seconds.
Open EMI Calculator →Also check your total loan repayment with our Loan Calculator for a complete amortization schedule.
FAQs
What is the EMI formula?
EMI = P — r — (1+r) / [(1+r) 1], where P is the principal loan amount, r is the monthly interest rate (annual rate 12 100), and n is the tenure in months.
Does a longer tenure reduce EMI?
Yes, a longer tenure lowers your monthly EMI. However, you end up paying significantly more total interest. Always choose the shortest tenure you can comfortably afford.
How do I reduce my EMI?
You can reduce EMI by making a larger down payment (reducing principal), negotiating a lower interest rate, or choosing a longer tenure. Prepayments also reduce future EMIs.