Understanding the level of risk associated with a mutual fund is crucial for any investor. A mutual fund risk-o-meter is a tool used to measure this risk and help investors make informed investment decisions. There are several methods used to measure mutual fund risk, including standard deviation and the Sharpe ratio. In India, the Association of Mutual Funds in India (AMFI) has developed its own risk-o-meter tool to help investors understand the risk level of different mutual funds.