Fibonacci Retracement & Extension Calculator
Calculate key Fibonacci retracement and extension levels for identifying support, resistance, and price targets.
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Enter swing high and low to calculate Fibonacci levels
Understanding Fibonacci in Trading
Fibonacci retracement levels are horizontal lines that indicate potential support and resistance levels based on the Fibonacci sequence. These levels are derived from the mathematical relationships between numbers in the Fibonacci sequence (0, 1, 1, 2, 3, 5, 8, 13, 21, ...).
Key Fibonacci Levels
| Level | Significance |
|---|---|
| 23.6% | Shallow retracement, strong trend continuation |
| 38.2% | Key retracement level, common in strong trends |
| 50.0% | Not a Fibonacci ratio, but widely watched |
| 61.8% | The "Golden Ratio" — most important level |
| 78.6% | Deep retracement, last defense before reversal |
| 161.8% | Primary extension target for profit taking |
How to Use Fibonacci Levels
- Retracement levels are used to find potential entry points during pullbacks
- Extension levels are used to set profit targets beyond the original swing
- Combine with other indicators (support/resistance, moving averages) for confluence
- The 61.8% level is the most significant and is known as the "Golden Ratio"
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