Loan EMI Calculator
Know your exact monthly payment, total interest, and amortisation schedule — before you sign anything.
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Calculate your Equated Monthly Instalment (EMI) for any home loan, car loan, personal loan, or business loan in seconds. Enter the loan amount, interest rate, and term to get your monthly EMI, total interest paid, and full amortisation schedule. Model a one-time or yearly lump-sum prepayment and choose whether it shortens your loan or lowers your EMI, check your EMI against your income, and compare this loan side by side against a second offer.
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How It Works
The EMI Formula
The standard reducing balance EMI formula used by all major banks globally
Formula
EMI = P × r × (1 + r)ⁿ ÷ [(1 + r)ⁿ − 1] After a lump sum L applied at month m: Shorten term: keep EMI fixed, recompute how many months remain Lower EMI: recompute EMI on the reduced balance over the original remaining months
Variables
Principal (Loan Amount)
The total amount of money you are borrowing from the lender. For home loans this is the property price minus your down payment. For car loans it is the vehicle cost minus your down payment or trade-in value.
Monthly Interest Rate
The annual interest rate divided by 12. If your bank offers 10% per annum, the monthly rate r = 10 ÷ (12 × 100) = 0.00833. This is the rate applied to your remaining balance each month.
Number of Monthly Instalments
The total number of monthly payments — your loan term in months. A 5-year loan = 60 months; a 20-year home loan = 240 months. The longer n is, the lower your monthly EMI but the more total interest you pay.
Lump Sum and Its Month
A one-time or yearly extra payment applied directly to principal at a chosen month. What happens afterward depends on your choice: 'shorten term' keeps the EMI the same and recalculates how many months remain until the balance hits zero; 'lower EMI' keeps the original number of remaining months and recalculates a smaller EMI for the reduced balance. Shortening the term saves more total interest for the same lump sum, because the loan carries a smaller balance for less time overall.
Note: This is the reducing balance method (also called diminishing balance), used by all RBI-regulated banks in India, SBP-regulated banks in Pakistan, and most formal lending institutions globally. The flat rate method — sometimes used by unregulated lenders — calculates interest on the original principal throughout the term, making the effective interest rate significantly higher than advertised.
Step-by-Step EMI Example
Home loan of ₹10,00,000 (10 lakhs) at 10% per annum for 5 years
Identify the principal
P = ₹10,00,000
Convert annual rate to monthly rate
r = 10% ÷ 12 ÷ 100 = 0.008333
Calculate the loan term in months
n = 5 years × 12 = 60 months
Calculate (1 + r)ⁿ
(1 + 0.008333)⁶⁰ = (1.008333)⁶⁰ = 1.6453
Apply the EMI formula
EMI = 10,00,000 × 0.008333 × 1.6453 ÷ (1.6453 − 1)
Complete the calculation
EMI = 8333 × 1.6453 ÷ 0.6453 = 13,710.6 ÷ 0.6453 = ₹21,247 per month
Calculate total amount paid
Total Paid = ₹21,247 × 60 = ₹12,74,820
Calculate total interest paid
Total Interest = ₹12,74,820 − ₹10,00,000 = ₹2,74,820 (27.48% extra over principal)
Reference Guide
| unit | value | note |
|---|---|---|
| Monthly EMI | ₹21,247 | Fixed amount paid every month |
| Total Amount Paid | ₹12,74,820 | Over the full 60 months |
| Total Interest | ₹2,74,820 | What the bank earns — 27.5% extra |
| First Month Interest | ₹8,333 | Interest on full principal |
| First Month Principal | ₹12,914 | Reduces your remaining balance |
| Month 60 Interest | ₹174 | Almost entirely principal by end |
| Month 60 Principal | ₹21,073 | Final near-complete principal payment |
Understanding Your EMI Results
What the numbers mean for your financial decision
Financial advisors and banks globally recommend keeping your total monthly EMI obligations below 30% of your gross monthly income. Fill in your income above and the calculator will show you exactly where this loan lands. At this level, you have sufficient income for living expenses, savings, and emergencies.
Best for: Target zone for sustainable borrowing
You are carrying a significant debt load. While banks may still approve this, any income disruption — job loss, medical emergency, pay cut — will cause immediate financial stress. Consider increasing your down payment or extending the loan term to reduce the monthly EMI.
Best for: Acceptable if income is very stable and you have an emergency fund
Most banks will reject a loan application at this ratio. Even those that approve it expose you to severe financial risk. A high EMI-to-income ratio is one of the leading causes of loan default and debt traps. Strongly reconsider the loan amount or term.
Best for: Reconsider the loan: reduce principal, extend term, or delay until income increases
For the same lump sum, shortening the term always saves more total interest than lowering the EMI, because the loan carries a shrinking balance for a shorter overall time. Lowering the EMI is worth choosing when your priority is reducing monthly cash-flow pressure right now, even at a higher total cost.
Best for: Shorten the term if you can absorb the current EMI; lower the EMI if monthly affordability is the constraint
What Is EMI — and How Does Amortisation Work?
An Equated Monthly Instalment (EMI) is the fixed amount a borrower pays to a lender on a specified date each calendar month. EMIs are structured so that each payment covers both the interest accrued on the outstanding balance and a portion of the principal, in a fixed total amount throughout the loan term. The word 'equated' is key: the monthly payment amount does not change — unless you make a lump-sum prepayment and specifically choose to have it lower your EMI rather than shorten your term. What changes month to month by default is the split between principal and interest within each payment. This structure is called amortisation. In the early months of a loan, most of each EMI payment covers interest — because interest is calculated on the full outstanding principal. As you make payments and the principal reduces, the interest portion decreases and the principal portion increases. By the final months, almost the entire EMI payment is principal repayment. This is why making extra payments early in a loan term has a dramatically larger impact than making the same extra payments late — and why this calculator lets you choose when a lump sum lands, not just how much it is. An extra payment in month 1 reduces the principal you pay interest on for every remaining month of the loan. The same payment made near the end saves only a handful of months of interest. Understanding the difference between flat rate and reducing balance interest is critical before signing any loan agreement. A flat rate loan charges interest on the original principal throughout the entire term — even as you repay it. A reducing balance loan (the standard bank method and what this calculator uses) charges interest only on the remaining outstanding balance. A 10% flat rate is roughly equivalent to a 17–18% reducing balance rate — making it far more expensive than it appears.
Key Features
💡 Pro Tips
- →If your goal is minimising total interest paid, always choose 'shorten the term' over 'lower the EMI' for any lump sum you can afford to keep absorbing at your current EMI level — the total interest saved is always larger.
- →Paying one extra EMI per year reduces a 20-year home loan to approximately 17 years — saving roughly 3 years of interest payments. Model this directly using the yearly lump-sum option.
- →When comparing loan offers, use the comparison feature rather than eyeballing two EMI figures — a lower EMI on Loan B can still mean more total interest if its term is longer, and the comparison panel surfaces that directly.
- →The first 6 months of any loan are the most expensive in interest terms. If you receive a bonus or lump sum early in the loan period, prepaying it — using the one-time lump-sum option from month 1 — has a disproportionately large impact.
- →Most Indian and Pakistani banks allow loan prepayment after a lock-in period (typically 6–12 months for home loans). Check your loan agreement for prepayment penalty clauses before modelling an early one-time prepayment here.
- →The EMI-to-income ratio your bank uses is calculated on gross income. Enter your net take-home income instead if you want a more conservative, personally meaningful affordability check.
Common Mistakes
Comparing loans by monthly EMI only
A 25-year loan will always have a lower monthly EMI than a 15-year loan at the same rate — but the 25-year loan can cost 60–80% more in total interest. Use the comparison feature to see both EMI and total interest for two offers at once, not just the monthly figure.
Confusing flat rate with reducing balance interest
A lender advertising '10% flat rate' is not offering the same deal as '10% reducing balance.' The flat rate is calculated on the original principal throughout — the effective annual rate is approximately 17–18%. This distinction is critical and frequently exploited by informal lenders.
Choosing 'lower the EMI' without realising it costs more in total interest
Lowering your EMI after a lump sum is a legitimate choice when monthly cash flow is the real constraint, but it always results in more total interest paid than shortening the term for the same lump sum, because the loan stays outstanding for longer at a reducing but still-present balance.
Ignoring processing fees and insurance in the cost of borrowing
Banks charge processing fees (0.5–2% of loan amount), insurance premiums, and legal fees that are not captured in the EMI. The true cost of borrowing — the Annual Percentage Rate (APR) — includes all fees and is always higher than the stated interest rate.
Not accounting for EMI when calculating total loan capacity
Many borrowers calculate the maximum loan they qualify for based on bank approval — not based on comfortable affordability. Bank approval limits can be up to 50–55% of income; the financially healthy limit is 30–35%. Fill in your income above to see where a specific loan actually lands rather than assuming.
Research & Citations
All factual claims on this page are sourced from peer-reviewed research
- [1]
Reserve Bank of India (2023). Master Circular — Housing Finance. RBI.org.in.
RBI guidelines on housing loan EMI calculation using reducing balance method
View source - [2]
State Bank of Pakistan (2022). Prudential Regulations for Consumer Financing. SBP.org.pk.
SBP regulations governing EMI calculation and debt burden ratio requirements
View source - [3]
Consumer Financial Protection Bureau (CFPB) (2023). What is the difference between a mortgage interest rate and an APR?. CFPB.gov.
Explanation of APR vs stated rate — relevant to understanding true loan cost
View source - [4]
Fabozzi, F.J., Modigliani, F., Jones, F.J. (2010). Foundations of Financial Markets and Institutions (4th ed.). Pearson Education.
Standard textbook source for amortisation and reducing balance loan mathematics
This calculator is a reference tool and does not constitute medical advice. For personalised sleep health guidance, consult a qualified healthcare provider.
Last updated: September 18, 2026
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Frequently Asked Questions
What is EMI and how is it calculated?
EMI stands for Equated Monthly Instalment — the fixed monthly payment you make to repay a loan over a set period. It is calculated using the formula: EMI = P × r × (1+r)ⁿ ÷ [(1+r)ⁿ − 1], where P is the principal loan amount, r is the monthly interest rate (annual rate divided by 12 and by 100), and n is the number of monthly payments.
What is the EMI for a 10 lakh loan?
For a ₹10,00,000 (10 lakh) loan at 10% per annum for 5 years, the monthly EMI is approximately ₹21,247. For a 10-year term at the same rate, the EMI drops to approximately ₹13,215 but total interest paid increases from ₹2.74 lakhs to ₹5.86 lakhs. Enter your specific amount, rate, and term above for an exact figure.
Should I use a lump sum to shorten my loan or lower my EMI?
Shortening the term always saves more total interest for the same lump sum, because the loan carries a reducing balance for a shorter overall period. Lowering the EMI instead is worth choosing only if your real constraint is monthly cash flow right now, since it keeps the original term and therefore costs more in total interest over the life of the loan. This calculator shows both outcomes so you can compare directly.
How does making extra payments affect my loan?
Extra payments reduce your outstanding principal balance, which reduces the interest charged on every subsequent month, since interest is calculated on the remaining balance. Even a small additional monthly amount, or a single lump sum, can significantly shorten the loan term and save a large amount of interest — the earlier in the loan it's applied, the bigger the effect.
What is the difference between flat rate and reducing balance interest?
Flat rate charges interest on the original loan amount for the entire term — so even as you repay principal, you keep paying interest on the full original amount. Reducing balance (used by all formal banks, and what this calculator uses) charges interest only on the outstanding remaining balance, which decreases each month. A flat rate of 10% is equivalent to approximately 17–18% on a reducing balance basis.
What is a good EMI-to-income ratio?
Financial advisors globally recommend keeping total EMI obligations below 30% of gross monthly income. Banks typically approve loans up to 40–55% of gross income, but that upper range leaves little buffer for financial disruption. Enter your monthly income and any existing EMIs above to see exactly where a specific loan lands for you.
Can I compare two loan offers with this calculator?
Yes — turn on 'Compare with a second loan offer' before calculating, and enter the second loan's amount, rate, and term. The result shows both loans' EMI and total interest side by side, along with which one costs less overall, so you're not comparing monthly payments in isolation.