The concept
Modelling systematic contributions
A systematic investment plan calculation shows how equal recurring contributions interact with an assumed rate and time.
Actual investment returns vary, contributions can be missed, and fees or tax can change outcomes.
The method
How the calculation works
The entered annual rate is converted to a monthly rate. An ordinary-annuity formula values equal contributions made at the end of each month.
PMT is the end-of-month contribution, r is the monthly assumed rate and n is the contribution count.
Worked example
A neutral example
Contributing ₹10,000 at each month-end for 10 years under an assumed 10% annual rate produces an illustrative future value, not a forecast.
This example explains the method. It does not recommend a financial action or predict an outcome.
Frequently asked
SIP Calculator questions
Are contributions assumed at the start or end of each month?+
At the end of each month.
Is the return guaranteed?+
No. It is entirely user supplied.
Are fees and tax included?+
No.