Check advanced SIP calculator for mutual funds.
Advanced Public Provident Fund (PPF) Calculator for 15 / 20 / 25 years month wise.
2 advanced calculators for mutual funds to know how much monthly amount to invest every month to get target amount and secondly, to know the maturity amount of mutual funds. Click here https://www.investmentkit.com/articles/?p=66
Advanced Calculators to know the maturity value of RD scheme of Post office