What is Interest-only Loan Calculator?
Interest-only Loan Calculator helps you calculate monthly interest payments when the principal is repaid at maturity.
The main result is monthly interest-only payment, with a breakdown of total interest, principal balloon at maturity and total paid including principal. The formula, example and assumptions below explain how to interpret it.
How to use Interest-only Loan Calculator
Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.
- Gather loan amount (₹), annual interest rate (%) and tenure (months). Use values from the same situation or reporting period.
- Replace the example loan amount with your own value, then complete the other fields. Check the displayed units.
- Select Calculate and read monthly interest-only payment with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
- Enter loan amount in ₹, at least 0. Decimals are accepted.
- Enter annual interest rate in %, at least 0 and at most 100. Decimals are accepted.
- Enter tenure (months), at least 1 and at most 600. Use a whole number.
Interest-only Loan Calculator: a worked example
With the inputs below, the result is ₹3,750 (monthly interest-only payment). Follow the example, then replace these illustrative values with your own.
| Input or output | Example value |
|---|---|
| Loan amount (₹) | ₹5,00,000 |
| Annual interest rate (%) | 9 % |
| Tenure (months) | 60 |
| Monthly interest-only payment | ₹3,750 |
| Total interest | ₹2,25,000 |
| Principal balloon at maturity | ₹5,00,000 |
| Total paid including principal | ₹7,25,000 |
Understanding the Interest-only Loan result
Read monthly interest-only payment alongside total interest, principal balloon at maturity and total paid including principal. These describe different parts of the same calculation.
Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.
- Example Total interest: ₹2,25,000
- Example Principal balloon at maturity: ₹5,00,000
- Example Total paid including principal: ₹7,25,000
Interest-only Loan Calculator: assumptions and common mistakes
A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.
- Compare offers over the same tenure. A lower EMI can come from a longer loan, which may increase total interest.
For wider guidance, visit Reserve Bank of India. The formula and scope of this specific tool are stated on this page.
