--- description: Uncover the key terms related to the Relative Strength Index (RSI) in cryptocurrency. This glossary offers clear definitions and explanations, helping you understand how RSI measures price momentum to identify potential market trends. title: RSI (Relative Strength Index) --- [Skip to content](#content) # RSI (Relative Strength Index) RSI, or Relative Strength Index, is a momentum oscillator that measures the speed and change of price movements in cryptocurrencies. It is used by traders to identify overbought or oversold conditions in the market. The RSI ranges from 0 to 100, with readings above 70 typically indicating that a cryptocurrency is overbought and due for a correction, while readings below 30 suggest that a cryptocurrency is oversold and may be due for a rebound. Traders use the RSI to make decisions on when to buy or sell cryptocurrencies. When the RSI is above 70, traders may consider selling their holdings as the price may be due for a downturn. On the other hand, when the RSI is below 30, traders may see it as an opportunity to buy as the price may be oversold and poised for an upturn. 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