EMI Calculator
Multi-currency · Reducing & flat rate · Grace period · Prepayment
Monthly schedule
| # | EMI | Principal | Interest | Balance |
|---|
Annual summary
| Year | Principal | Interest | Cum. interest | Balance |
|---|
Add one-time lump-sum prepayments, or a recurring extra amount every month, to see how they cut your interest and tenure.
Compare your current loan against up to three alternative rates or tenures.
See if switching your loan to a new lender makes financial sense.
Independent verification of the EMI formula and amortisation accuracy.
What Is an EMI Calculator, and Why Use One?
An EMI, or equated monthly installment, is the fixed amount you pay a lender each month to repay a loan, covering both principal and interest. Before you commit to any loan, this EMI calculator lets you see that exact number in advance, along with the total interest and total repayment over the full term.
In practice, three things drive your EMI: the loan amount, the interest rate, and the tenure. As a result, even a small change in any one of these can shift your monthly payment significantly. For example, extending your tenure by a couple of years can lower your EMI, but it also means paying substantially more interest overall.
When You Should Recalculate
Because interest rates and loan offers change frequently, it's worth recalculating whenever you're comparing lenders, considering a prepayment, or thinking about a balance transfer. Use the tabs above to explore each of these scenarios and see, in real numbers, how they affect what you'll actually pay.
Tips for getting the most out of an EMI calculator
Confirm reducing balance vs flat rate before comparing offers
A "12% flat rate" loan can cost roughly the same as a 22-24% reducing balance loan. Ask your lender which method applies, then switch the Calculation method dropdown above to match before comparing.
Factor in the processing fee, not just the rate
A low headline rate with a high one-time fee can cost more than a slightly higher rate with no fee, especially on shorter tenures. Enter the fee in Advanced options to see the effective APR.
Shorter tenure usually beats a lower EMI
Stretching the term lowers your monthly payment but sharply increases total interest paid. Use the Year chart tab to see how much of each year's payments goes to interest versus principal.
Small prepayments early on save the most
On a reducing balance loan, an extra payment made in year one saves more interest than the same amount paid in year five, since more principal is still outstanding. Try a few amounts in the Prepayment tab.
Check the break-even point before a balance transfer
A lower rate from a new lender isn't automatically worth it once transfer fees are included. The Balance Transfer tab shows the break-even month — how long it takes for interest savings to cover the fee.
Keep EMI within a comfortable share of income
Enter your monthly income in Advanced options to see your EMI as a percentage of it. Most lenders and planners suggest keeping total EMI obligations under roughly 40-50% of income.
Frequently asked questions
How is EMI calculated?
Reducing balance: EMI = P × r × (1+r)^N / ((1+r)^N − 1), where r is the monthly rate and N the number of installments. Flat rate: EMI = (P + P × R × T) / N, charging interest on the full original principal for the whole term — always higher than reducing balance for the same stated rate.
What's the difference between reducing balance and flat rate?
Reducing balance charges interest only on what's still outstanding, so it drops every month as you repay. Flat rate charges interest on the original principal for the entire term, making the effective rate roughly double the stated flat rate.
Does prepayment actually save money?
Yes — on a reducing balance loan, extra payments go straight to principal, lowering the balance interest is calculated on for every remaining month. Prepaying earlier in the term saves more than prepaying later.
Should I do a balance transfer to a lower rate?
It depends on the rate gap, remaining tenure, and transfer fees. Use the Balance Transfer tab to compare your current EMI against a new lender's rate and see the break-even point in months.
What is a good EMI-to-income ratio?
Most lenders and planners suggest keeping total EMI obligations under roughly 40-50% of monthly income, with housing EMI alone ideally under 30%. Enter your income under Advanced options to check yours.
Why is my total repayment so much higher than the loan amount?
Total repayment includes all interest charged over the full term. Longer tenures lower the monthly EMI but sharply increase total interest, since the outstanding balance stays higher for longer — see the Schedule and Year chart tabs.
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Sources & further reading
CFPB – Understanding Your Loan Estimate
The Consumer Financial Protection Bureau explains how to read APR, fees, and monthly payment disclosures on a loan estimate.
Investopedia – Amortization
A reference explainer on how amortizing loans split each payment between principal and interest over time.
IRS Topic No. 505 – Interest Expense
Official guidance on which types of loan interest may be tax-deductible in the US.
Disclaimer
This calculator is provided for general informational and educational purposes only and does not constitute financial or legal advice. It is not affiliated with, endorsed by, or a substitute for consultation with your lender or a licensed financial advisor.
All figures — including EMI, total interest, grand total, effective APR, prepayment savings, and balance transfer break-even — are approximations based on the numbers you enter and standard amortization or flat-rate formulas. They do not account for lender-specific rounding, underwriting conditions, promotional terms, or credit-score-based pricing that may apply to your actual loan.
The "Effective APR" shown reflects interest and fees spread over the loan term and principal; it is not necessarily the regulatory Annual Percentage Rate disclosed under your jurisdiction's consumer credit laws. Always confirm the actual rate, fees, and total cost in your official loan agreement before signing.
FinToku is not a lender and does not broker, originate, or guarantee financing. Use of this tool does not create any financial relationship between you and FinToku. You are solely responsible for decisions made using these estimates.
Free tool by FinToku · Results are indicative. Consult your lender for exact figures.