The True and Fair Campaign group has launched an online calculator aiming to show clients the full extent of what they pay for their investments.
The group says the global calculator enables investors to fully analyse the cost of all investment products available in their home country.
It gives users the total cost of the investment in pounds and pence as well as a percentage and can take into account fund, wrapper, platform and adviser costs.
True and Fair Campaign founder Gina Miller says: “We hope this drives new levels of cost transparency which results in greater competition among product providers, gives information to aid better decision making by consumers and their advisers and provides a foundation for more realistic investment expectations. Ultimately it should result in better consumer protection.”