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The Fibonacci levels calculator generates retracement and extension price levels based on a swing high and swing low. Traders use these levels to identify potential support and resistance areas, define pullback zones, and set possible targets. The tool supports both uptrend and downtrend scenarios so the levels are plotted in the direction that matches your market context.
What This Calculator is Used for
Fibonacci levels are often used as “reference zones” rather than exact reversal points. This calculator helps you quickly map the most common retracement levels (such as 38.2%, 50%, and 61.8%) and extension levels (such as 161.8% and 200%). It can be used as a planning aid for entries, stop-loss placement, and target selection—especially when combined with price action or other indicators.
- Support and resistance mapping: identify likely pullback zones during a trend.
- Entry planning: explore potential entry areas on retracements after a strong move.
- Target setting: use extensions as possible take-profit levels in trending markets.
- Risk planning: compare stop placement below/above key Fibonacci zones.
How to Use It
Choose the swing high and swing low that define the move you are analyzing. Then select whether the market context is an uptrend or downtrend so the retracement and extension levels are calculated in the correct direction. Once calculated, use the table outputs as zones to watch rather than guarantees of reversals.
- Enter the High Price (A) for the swing.
- Enter the Low Price (B) for the swing.
- Select Uptrend if you are measuring a move upward and planning a pullback.
- Select Downtrend if you are measuring a move downward and planning a bounce.
- Click Calculate to populate the retracement and extension tables. Use Reset to clear inputs.
Fields Explained
The calculator treats your two points as the anchors of a completed swing. The distance between A and B is used to calculate percentage-based levels. Retracements represent a pullback within that move, while extensions project beyond the swing to estimate potential continuation targets.
| Field | What it means | Practical guidance |
|---|---|---|
| High Price (A) | The swing high used as an anchor point. | Choose a clear pivot high that stands out on your timeframe, not a minor fluctuation. |
| Low Price (B) | The swing low used as an anchor point. | Choose a clear pivot low that defines the same move as your high point. |
| Uptrend / Downtrend | Sets the direction used to calculate retracements and extensions. | If levels appear inverted, switch trend direction or re-check which point is the high/low of the swing. |
Results Explained
The calculator outputs two tables: retracement levels and extension levels. Retracement levels are commonly watched as pullback zones during trends, while extension levels are often used as potential targets once price breaks beyond the swing. Treat these as areas of interest, then look for confirmation such as structure, candles, or confluence with other tools.
| Result | Meaning | How to interpret it |
|---|---|---|
| Retracement levels | Price levels that represent a pullback of the original swing (example: 38.2%, 50%, 61.8%). | Often used to plan entries in the trend direction after a pullback, or to place stops beyond key zones. |
| Extension levels | Price projections beyond the swing (example: 138.2%, 161.8%, 200%). | Commonly used for potential take-profit targets in continuation moves. |
Common Fibonacci Levels and How Traders Use Them
Different strategies emphasize different levels, but the following are widely referenced in trend analysis. Many traders view 50% as a psychological midpoint even though it is not a Fibonacci ratio. The key is not to treat levels as “magic lines,” but as zones that may attract order flow.
| Level | Type | Typical interpretation |
|---|---|---|
| 23.6% | Retracement | Shallow pullback; often seen in strong trends where price barely retraces. |
| 38.2% | Retracement | Moderate pullback zone; commonly watched for trend continuation setups. |
| 50% | Retracement | Midpoint pullback; frequently used as a “fair value” zone in many strategies. |
| 61.8% | Retracement | Deep pullback; often treated as a major decision area for continuation vs reversal. |
| 76.4% | Retracement | Very deep pullback; can still hold in trends but may signal weakening momentum. |
| 138.2% / 161.8% | Extension | Common continuation targets after a breakout beyond the swing. |
| 200% | Extension | A further target used when momentum remains strong and price continues trending. |
Pros and Cons
Fibonacci levels are popular because they are simple to compute and easy to combine with other analysis methods. The calculator speeds up the process and keeps your levels consistent across charts. The main downside is that Fibonacci is interpretive—levels can work well in some market conditions and fail in others without confirmation.
Pros
- Quickly maps common retracement and extension levels from a swing high and low.
- Helps create consistent reference zones for entries, stops, and targets.
- Useful across forex, stocks, crypto, and other liquid markets.
- Pairs well with price action and support/resistance analysis.
Cons
- Levels are not guarantees; price can ignore them without warning.
- Results depend on choosing the “right” swing points, which is subjective.
- Different traders may draw Fibonacci from different anchors and get different levels.
Reliability and Limitations
Fibonacci is best treated as a confluence tool, not a standalone signal. It is more reliable when the swing points are clear, the trend is strong, and the levels align with other factors like prior support/resistance, moving averages, or market structure. In choppy or news-driven markets, levels can be broken easily. For best use, identify a clear swing, use trend direction correctly, and wait for confirmation before committing capital.
- Most reliable for: trending markets with clear swings and supportive confluence factors.
- Less reliable for: ranging markets, low-liquidity periods, or high-volatility news events.
- Tip: treat levels as zones—look for rejection candles, structure breaks, or volume shifts to confirm.