Interest calculator

Simple and compound interest, with the rate as % a year or per ₹100 a month.

How to use it

Type the amount lent, borrowed or saved.
Type the rate as % a year, or as rupees per hundred each month.
Pick simple or compound interest, and the time or the two dates.
Read the interest, the total and the year-by-year table.

Opening the tool…

Questions people ask

What does ₹2 per ₹100 a month mean?

For every ₹100 lent, ₹2 interest each month. That is 24% a year as simple interest. Many private loans are agreed this way.

Simple or compound?

Simple interest is only on the amount itself. Compound interest is added to the balance and earns interest too, as in bank deposits. Compound gives more over long periods.

Is this financial advice?

No. It is a calculator for estimates. For decisions, check with your bank or a registered adviser.

Other tools

EMI calculatorMonthly instalment, total interest, the full repayment table and what part-payments save.
Income tax calculator (India)Tax under the new and old regimes, side by side.
Mortgage calculatorMonthly home loan payment with property tax, insurance and fees, and a year-by-year table.
Sales tax and VAT calculatorAdd tax to a price or take it out, at any rate, with country rates and India’s GST split.
GST calculator (India)Add or remove GST, with CGST and SGST split.