Last updated: June 2026
Fibonacci Retracement and Extension Levels Explained
Fibonacci levels are widely used in technical analysis to identify possible pullback zones, support and resistance areas, and price targets after a clear market move. Traders use Fibonacci retracements to study where a correction may pause, and Fibonacci extensions to estimate where price may move if the trend continues.
How does the Fibonacci calculator work?
Fibonacci level = Swing point ± Fibonacci percentage of the price range
The calculator takes the swing high and swing low you enter, measures the total price range, and applies common Fibonacci ratios such as 23.6%, 38.2%, 50%, 61.8%, and 78.6% for retracements. It also calculates extension levels such as 127.2%, 161.8%, 200%, and 261.8%.
What are Fibonacci retracement levels?
Fibonacci retracement levels are potential pullback zones where price may pause, react, or continue the previous trend after a strong move.
What are Fibonacci extension levels?
Fibonacci extension levels help traders estimate possible price targets beyond the original swing high or swing low when a trend continues.
Are Fibonacci levels always accurate?
No. Fibonacci levels are not guaranteed signals. They should be used with price action, trend structure, support and resistance, and proper risk management.
Fibonacci trading examples
The table below shows simple examples of how Fibonacci levels can appear when using a swing high and swing low from a clear price move.
Best way to use Fibonacci in trading
Fibonacci works best when it is applied to a clear price swing. In an uptrend, traders usually measure from the swing low to the swing high and watch retracement levels below the high. In a downtrend, traders measure from the swing high to the swing low and watch retracement levels above the low.
Fibonacci levels are less reliable in choppy markets with no clear direction. The cleaner the swing, the easier it is to interpret potential Fibonacci support, resistance, and continuation areas.
What is the Fibonacci golden zone?
The area between the 50% and 61.8% retracement levels is often called the golden zone. Many traders watch this area because it can act as a key pullback zone during trending markets.