Loan & EMI Calculator
Calculate monthly EMI, total interest, and total payment for any loan amount, rate, and tenure.
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How to use this calculator
P = Principal, r = monthly interest rate (annual rate ÷ 12 ÷ 100), n = total number of monthly payments.
- 1
Enter the total loan amount you are borrowing.
- 2
Enter the annual interest rate (e.g. 8 for 8%). Entering 0 means an interest-free loan.
- 3
Enter the loan tenure in years. The amount and the tenure must both be above 0; an emptied box counts as 0.
- 4
The calculator shows your monthly EMI, total interest paid, and total repayment amount.
Frequently asked questions
What is EMI?
EMI (Equated Monthly Instalment) is the fixed amount you pay each month to repay a loan. Each EMI contains a portion of the principal and a portion of the interest. Early payments are mostly interest; later payments are mostly principal.
How can I reduce my EMI?
You can reduce your EMI by: (1) increasing the loan tenure — longer tenure means smaller monthly payments but more total interest; (2) making a larger down payment to reduce the principal; (3) negotiating a lower interest rate; (4) prepaying part of the principal during the loan.
What happens if I pay more than the EMI?
Paying extra reduces your principal faster, which reduces total interest paid and can shorten the loan tenure. Many lenders allow prepayment with no or minimal penalty — check your loan agreement.
What happens if I leave a box empty or enter 0?
An emptied box counts as 0. A loan amount of 0 or a tenure of 0 years has no repayment to work out, so the calculator shows an error naming the field instead of a payment. A 0% interest rate is valid: the EMI is simply the loan amount divided by the number of months, with $0.00 of interest.
Is this calculator for all loan types?
Yes — the EMI formula works for personal loans, car loans, home loans, student loans, and business loans with fixed interest rates. For variable-rate loans, EMI changes when rates change.
Loan and EMI calculation explained
How loan EMI is calculated
The EMI formula uses compound interest: EMI = P × r(1+r)^n / ((1+r)^n − 1). Where P = principal, r = monthly rate (annual rate ÷ 12 ÷ 100), n = number of months. This formula ensures that each monthly payment covers the interest accrued plus reduces the principal.
Effect of tenure on total cost
Longer tenure = lower EMI but much more total interest. A $100,000 loan at 8%: 5-year tenure → EMI $2,028, total interest $21,659. 10-year tenure → EMI $1,213, total interest $45,593. 20-year tenure → EMI $836, total interest $100,745. Paying for 20 years costs more in interest than the original loan amount.
Tips to reduce loan cost
Make a larger down payment to reduce principal. Choose the shortest tenure you can afford. Make occasional lump-sum prepayments — even one extra payment per year significantly reduces total interest. Compare lenders: a 1% difference in interest rate on a $200,000 loan can save $30,000+ over 20 years.
EMI on a $100,000 loan at different rates and tenures
The grid below shows the monthly EMI for a $100,000 loan. Moving down a column shows what each extra percentage point of interest costs per month; moving across a row shows how stretching the tenure lowers the EMI.
| Annual rate | 5 years | 10 years | 15 years | 20 years |
|---|---|---|---|---|
| 6% | $1,933 | $1,110 | $844 | $716 |
| 8% | $2,028 | $1,213 | $956 | $836 |
| 10% | $2,125 | $1,322 | $1,075 | $965 |
| 12% | $2,224 | $1,435 | $1,200 | $1,101 |
Worked example: $250,000 at 6.5% for 15 years
Monthly rate r = 6.5% ÷ 12 = 0.5417%, and n = 15 × 12 = 180 payments. The EMI works out to $2,177.77, so you repay $391,998 in total, of which $141,998 is interest. In month 1 the interest is $250,000 × 0.5417% = $1,354.17, which leaves only $823.60 to reduce the principal. By month 3 the principal share has grown to $832.55 because the balance, and so the interest, is falling. After 5 years (60 payments) you still owe about $191,793.
| Month | Interest | Principal | Remaining balance |
|---|---|---|---|
| 1 | $1,354.17 | $823.60 | $249,176.40 |
| 2 | $1,349.71 | $828.06 | $248,348.34 |
| 3 | $1,345.22 | $832.55 | $247,515.79 |
What an extra payment saves
On the same $250,000 loan, adding just $100 to every EMI pays it off in 168 months instead of 180 and cuts total interest by about $11,400. Early extra payments save the most because they reduce the balance that interest is charged on for the longest time.
Common mistakes when comparing loans
Comparing only the EMI hides the real cost: a lower EMI usually means a longer tenure and far more interest. Ignoring fees (processing, insurance) understates the true rate. Mixing up a flat rate with a reducing-balance rate can double the effective cost, because this calculator, like most bank loans, charges interest only on the outstanding balance. Always compare total payment, not just the monthly figure.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →