EMI Calculator
Compute equated monthly installment for any loan with detailed breakdown.
About the EMI Calculator
This EMI (Equated Monthly Installment) calculator is tuned for the Indian lending market, where EMI is the standard way to express the monthly repayment on home loans, car loans, personal loans, education loans, and consumer durable loans. Enter the principal in rupees, the annual interest rate quoted by your bank, and the tenure in months, and the tool returns your monthly EMI, total interest, and total amount payable.
EMI is mathematically identical to the standard amortization formula used elsewhere in the world, but it is expressed in months rather than years because Indian loan tenures are typically quoted that way (60 months for a car loan, 240 months for a home loan). The reserve bank of India (RBI) requires lenders to disclose EMI, total interest, and amortization schedule up front so borrowers can compare offers transparently.
This tool is especially useful for evaluating the trade-off between tenure and EMI: a longer tenure reduces the monthly EMI but multiplies the total interest. For example, extending a ₹5,00,000 personal loan from 36 to 60 months at 9.5% reduces the EMI from ₹16,034 to ₹10,504, but increases total interest from ₹77,225 to ₹1,30,236.
How It Works
EMI uses the same annuity formula as the standard amortization calculation:
EMI = (P * r * (1+r)^n) / ((1+r)^n - 1)Where:
- P = loan principal (in rupees)
- r = monthly interest rate = annual rate / 12 / 100
- n = tenure in months
This is algebraically equivalent to the more familiar M = P*r / (1 - (1+r)^(-n)) — multiply numerator and denominator by (1+r)^n to convert one into the other.
Each EMI is split into interest (computed on the outstanding balance, large at the start) and principal (which grows over time). The total interest is the sum of all interest portions across all EMIs, equal to total paid minus principal. Most Indian banks publish the year-by-year amortization schedule in their loan sanction letter.
Worked Examples
Suppose you take a ₹5,00,000 personal loan at 9.5% per annum for 60 months.
- Monthly rate: 9.5 / 12 / 100 = 0.007917
- EMI = 5,00,000 * 0.007917 * (1.007917)^60 / ((1.007917)^60 - 1)
- (1.007917)^60 = 1.6076
- EMI = 5,00,000 * 0.007917 * 1.6076 / 0.6076 = ₹10,503.65/month
- Total paid: 60 * 10,503.65 = ₹6,30,219
- Total interest: ₹6,30,219 - ₹5,00,000 = ₹1,30,219
Compare with a 36-month tenure at the same rate: EMI jumps to ₹16,034 but total interest drops to ₹77,225 — saving you ₹53,000 over the life of the loan. The shorter tenure is much cheaper in absolute terms; the longer tenure is more affordable monthly.
When to Use This Tool
Use this EMI calculator when:
- Comparing personal loan offers from HDFC, SBI, ICICI, Axis, Bajaj Finserv, and others
- Estimating the EMI on a home loan before applying (typically ₹750-₹1,000 per lakh per month at 8.5-9% for 20 years)
- Deciding between 36, 48, 60, or 72 months for a car loan
- Evaluating whether to prepay part of an existing loan to reduce tenure
- Calculating the EMI for an education loan before your child starts college
- Estimating consumer durable (TV, phone, furniture) financing
- Planning the EMI affordability against your monthly take-home salary (typically EMI should be < 40% of net income)
For loan restructuring or balance transfers, also factor in processing fees (typically 0.5-2% of principal) and prepayment penalties (for personal loans, often 2-5% of outstanding).
Limitations & Disclaimer
This EMI calculator assumes a fixed or currently-applicable interest rate for the entire tenure. It does not model floating-rate repricing (common on Indian home loans), processing fees (0.5-2% of principal), GST on fees, prepayment penalties (2-5% on personal loans, banned on floating-rate home loans), or step-up/step-down EMI structures. The result is the amortized EMI for the stated rate only. Always verify the EMI, amortization schedule, and fee structure with your bank's sanction letter before signing. See our disclaimer for full terms.
Frequently Asked Questions
What is the difference between EMI and amortization?
Nothing — they are the same concept. EMI (Equated Monthly Installment) is the Indian term for an amortizing fixed monthly payment. The math is identical to the standard amortization formula used in the U.S. and elsewhere. The Indian convention quotes tenure in months rather than years.
What is a good EMI-to-income ratio?
Indian banks typically require total EMIs (across all loans) to be below 40-50% of your net monthly take-home pay, with 40% being the safer ceiling. Some lenders permit up to 60% for high-income borrowers with strong credit scores, but this leaves little buffer for emergencies.
How does prepayment affect EMI?
Prepayment reduces the outstanding principal. Most lenders let you choose: keep the same EMI and shorten the tenure (saves the most interest), or keep the same tenure and lower the EMI (improves monthly cash flow). The first option is almost always better financially.
Is EMI calculated on reducing balance?
Yes, all standard Indian loans use reducing-balance interest — each month's interest is calculated only on the remaining principal. Flat-rate interest (used by some unscrupulous lenders) calculates interest on the full principal for the entire term, which roughly doubles the effective rate. Always verify your loan is reducing-balance.
Does this work for home loans with floating rates?
The math is correct for any given rate, but floating-rate loans (the majority in India) reprice periodically. Your EMI may be reset upward or downward when the RBI changes the repo rate. Use the calculator with each new rate to see the impact.
What about processing fees and GST?
Processing fees (typically 0.5-2% of principal, often GST on top) are paid upfront and are not part of the EMI. They effectively raise your true cost. Our <a href='/tools/apr-calculator.php'>APR Calculator</a> can convert upfront fees plus interest rate into a true APR for honest comparison.
Last updated: July 21, 2026 · Author: HT99 Tools Editorial Team · Reviewed by: HT99 Tools Editorial Team