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Fibonacci Retracement & Extension Calculator

Enter a swing high and swing low to get Fibonacci retracement and extension levels for an uptrend or a downtrend.

Enter a swing high and low, or use Auto-fill to load them from recent daily candles.
Fibonacci levels
TypeLevelPriceDistance from price

What are Fibonacci retracement levels?

Fibonacci retracement levels are horizontal lines drawn between a swing high and a swing low at ratios taken from the Fibonacci sequence: 23.6%, 38.2%, 50%, 61.8% and 78.6%. Traders watch them to see where a pullback in a trend may pause or reverse.

How the levels are calculated

In an uptrend, a retracement level is High - (High - Low) x ratio. In a downtrend, it is Low + (High - Low) x ratio. Extension levels project beyond the swing: in an uptrend they are Low + (High - Low) x extension ratio, and in a downtrend they are High - (High - Low) x extension ratio, using 127.2%, 161.8%, 200% and 261.8%. The 50% level is not a Fibonacci ratio but is widely used.

How to use this calculator

Pick Nifty, Bank Nifty or Sensex and a number of recent days to auto-fill the swing high and low from daily candles, or type your own swing points. Choose uptrend or downtrend, and optionally enter the current price to see which level it is closest to.

Frequently asked questions

How do I calculate Fibonacci retracement levels?

Subtract each ratio of the swing range from the high in an uptrend, or add it to the low in a downtrend. The swing range is the swing high minus the swing low. The calculator does this for every level automatically.

Which Fibonacci level is the most important?

The 38.2%, 50% and 61.8% retracements are the most commonly watched. No level works every time, so traders usually combine them with price action, volume or other indicators.

What is the difference between retracement and extension?

Retracement levels lie inside the swing and show where a pullback might stop. Extension levels lie beyond the swing and are used as possible targets if the trend continues.

How do I choose the swing high and swing low?

Pick the most recent significant high and low that define the move you want to measure, such as the start and end of a clear rally or decline. The auto-fill uses the highest high and lowest low of the last few completed daily candles as a starting point that you can edit.

Can I use Fibonacci levels on intraday charts?

Yes. The levels can be drawn on any time frame. Enter the swing high and low from the chart you are using and the calculator will give you the levels.

These tools are for educational and informational purposes only. Results are estimates based on the inputs and data shown, and OPIFY does not provide trading tips or investment advice.

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