Simple Interest Calculator
Simple interest applies the rate to the original principal only. Enter the principal, rate and time to get the interest and total amount instantly.
Adjust & watch it update
Principal
₹
Rate & Time
%
Time Unit
yrs
Simple Interest
—
Total interest earned
Total Amount—
Frequently asked questions
What is the simple interest formula?
SI = (P × R × T) / 100 — principal times annual rate times time in years, divided by 100.
Where is simple interest used?
Short-term lending, some gold loans, informal lending, and penalty interest are commonly quoted as simple interest.