Relative Strength Index (RSI) Calculator
Calculate the Relative Strength Index (RSI), a momentum indicator used in technical analysis, from your average gains and losses over a chosen period.
What the RSI measures
The Relative Strength Index (RSI) is a momentum oscillator used in technical analysis to gauge the speed and size of recent price changes, helping traders assess whether an asset may be overbought or oversold.
The formula used
RSI is calculated as RSI = 100 − [100 ÷ (1 + RS)], where RS (Relative Strength) is the average gain over a look-back period (commonly 14 periods) divided by the average loss over the same period. RSI ranges from 0 to 100.
Enter your average gain and average loss (both as positive numbers) for the period you are analyzing. As a general guideline, an RSI at or above 70 is often considered overbought, while an RSI at or below 30 is often considered oversold, though these thresholds are just conventions, not guarantees of future price direction.
This tool is for general educational and informational purposes only and is not financial or trading advice.