RSI Indicator Complete Guide

RSI (Relative Strength Index) is a momentum indicator developed by J. Welles Wilder in 1978. It produces a value between 0 and 100 to identify overbought/oversold conditions.

What is RSI

RSI measures the ratio of upward to downward moves over a period, scaled 0-100. The standard period is 14 days.

RSI Calculation Formula

RSI = 100 - (100 / (1 + RS)). RS = Average Gain / Average Loss over 14 periods.

Overbought/Oversold Interpretation

Above 70: overbought. Below 30: oversold. In strong trends, RSI can persist above 80 or below 20.

Divergence Trading

Price makes new high but RSI doesn't = bearish divergence. Used as trend-reversal signal.

RSI in Crypto

Crypto's high volatility makes 4h/daily RSI more reliable. 1-minute RSI tends to be noisy.

How to Get RSI Alerts

On CryptoPingAi, pick coin + RSI threshold + timeframe → instant Telegram alerts. Free.