Calculator for P.P.F interest check various / different deposits , amount & month year over year?

I had opened my P.P.F a/c in 1979. The issue is - I want to check & verify interest credited to a/c . The deposits are different from time to time. I want a calculator in such a way that by giving Date of Deposit, amount of deposit & then get the result continuously. Kindly assist accordingly.

Regards
Sanjay Kumar Agrawal

Via email @sanjayagrawal61

I have not found a calculator for 30 + years, but below calculator can calculate for 15 years with different amount each year. Don't know whether it's correct.

1- PPF Calculator
2- Finotax