Calculate Fibonacci retracement levels (23.6%, 38.2%, 50%, 61.8%) and extension levels (127.2%, 161.8%, 261.8%) from any swing high and low.
enter high and low prices
Swing High
Swing Low
Trend Direction
Current Price (optional)
Key Level
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Current Zone
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Implication
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Fibonacci Levels (click to copy)
Trading Decision
The golden zone is the highest-probability area
If your current price sits between 38.2% and 61.8%, that's the retracement zone most traders watch for a continuation entry — outside it, the setup is weaker or the move may have already failed.
A level alone isn't an entry signal
Price reaching a Fibonacci level tells you where to watch, not when to act — wait for a candle pattern, volume, or another confluence factor before entering.
Extension levels are profit targets, not entries
Use the 127.2%/161.8%/261.8% extension levels to plan where to take profit on a continuation trade, not as a place to open a new position.
Enter the swing high price — the highest point of the recent price move you want to analyse.
Enter the swing low price — the lowest point of the same price move.
Select direction — Uptrend (retracement pulls back from high to low) or Downtrend (retracement moves up from low to high).
Read retracement levels — the calculator shows all key Fibonacci levels: 23.6%, 38.2%, 50%, 61.8%, 78.6%, and extension levels 127.2%, 161.8%, and 261.8%.
Use as trade levels — the 38.2%, 50%, and 61.8% levels are the primary retracement zones for entries. The 127.2% and 161.8% extension levels are common take profit targets.
🌀 The golden ratio: 61.8% (the 'golden ratio' or phi) is the most significant Fibonacci level. Price frequently finds strong support or resistance at this level during healthy trends. A clean bounce from the 61.8% retracement in a strong trend is one of the highest-probability trade setups in technical analysis.
Understanding Fibonacci in Trading
🌀 What Are Fibonacci Levels?
Ratios derived from the Fibonacci sequence (0, 1, 1, 2, 3, 5, 8, 13...) where each number divided by the next approaches 0.618. These ratios appear throughout nature and financial markets, influencing where price finds support and resistance.
📊 Key Retracement Levels
23.6%: shallow retracement — strong trend. 38.2%: moderate retracement — healthy trend. 50%: half retracement — common pause point (not a Fibonacci ratio but widely used). 61.8%: deep retracement — maximum pullback in a healthy trend. 78.6%: very deep — often last support before trend reversal.
🎯 Extension Levels
127.2%: first extension target after trend continuation. 161.8%: the primary extension target (1.618 × original move). 261.8%: second extension for strong trend moves. Extensions project where price may go after the retracement completes.
🏦 Why They Work
Fibonacci levels work because professional traders globally use them to identify entry and exit points. This creates self-fulfilling prophecy — enough traders buying at 61.8% creates real buying pressure at that level.
🔗 Fibonacci Confluence
The highest-probability setups occur when a Fibonacci level aligns with another technical factor: previous support/resistance, moving average, pivot point, or trend line. Single Fibonacci levels alone are weaker signals.
⚡ Swing Selection Matters
Fibonacci accuracy depends entirely on selecting the correct swing high and low. Use significant structural swings — major highs and lows that represent clear directional changes. Applying Fibonacci to minor noise produces unreliable levels.
Fibonacci Trading Strategies
The Fibonacci retracement entry
The most common Fibonacci strategy: identify a strong trending move, wait for retracement to the 38.2%–61.8% zone, look for price action confirmation (pin bar, engulfing candle) at the level, enter with stop below the 78.6% level (or below the swing low for conservative entries), target the previous high for 1:2+ R:R.
Fibonacci extension targets
After identifying a completed retracement, use extension levels to set take profit targets. The 127.2% extension is the conservative first target. The 161.8% extension is the standard target for trend continuation trades. The 261.8% extension is used for breakout trades in very strong trends. Pre-setting these targets using this calculator before entering eliminates the need for in-trade decision making.
Fibonacci and prop firm challenges
Fibonacci-based entries naturally produce high R:R ratios when set up correctly. An entry at the 61.8% retracement with stop below the swing low (10–20 pips below) and target at the 161.8% extension (often 50–100+ pips away) creates 1:3 to 1:5 R:R opportunities. These setups are ideal for prop firm challenges where high R:R accelerates progress toward the profit target.
🌀 Fibonacci rule: Never trade a Fibonacci level in isolation. Always require at least one confirming factor — price action signal, confluence with another technical level, or alignment with the higher timeframe trend direction. Fibonacci + confirmation = high-probability setup. Fibonacci alone = speculation.
Fibonacci Formula
Retracement Level = Swing High − (Range × Ratio) for an uptrend, where Range = High − Low and Ratio is one of the Fibonacci ratios (23.6%, 38.2%, 50%, 61.8%, 78.6%).
Worked example
Uptrend swing: High 1.2650, Low 1.2350 (Range = 0.0300). The 61.8% retracement = 1.2650 − (0.0300 × 0.618) = 1.2465. If current price is 1.2480, it sits between the 50% (1.2500) and 61.8% (1.2465) levels — inside the golden zone.
Assumption: retracement direction depends on correctly identifying the swing High and Low from an actual completed move — an arbitrary or premature swing selection produces levels that don't correspond to real support/resistance.
Avoid These Mistakes
Picking the wrong swing points
Fibonacci levels are only meaningful if the High and Low represent an actual significant swing — an arbitrary recent high/low produces levels with no real technical significance.
Trading every level equally
Not all Fibonacci levels are equal — 38.2%, 50%, and 61.8% are watched far more closely than 23.6% or 78.6%. Weight your expectations accordingly.
Ignoring the trend direction setting
Selecting the wrong trend direction flips which levels are retracements versus extensions — always match it to your actual swing high-to-low or low-to-high move.
Entering without confirmation
A price touching a Fibonacci level is not a signal by itself — always require price-action or another confluence factor before entering.
Frequently Asked Questions
What is Fibonacci retracement?
Fibonacci retracement levels are horizontal lines that indicate potential support and resistance based on the Fibonacci sequence ratios. The key levels are 23.6%, 38.2%, 50%, 61.8% (the 'golden ratio'), and 78.6% of the previous price move.
What is the golden ratio in trading?
The golden ratio (61.8%) is the most important Fibonacci level. It's derived from the Fibonacci sequence: each number divided by the next = ~0.618. Price frequently reverses at or near this level, making it the strongest support/resistance in Fibonacci analysis.
What is the difference between retracement and extension?
Retracement levels (0–100%) show where price might pull back within an existing trend. Extension levels (127.2%, 141.4%, 161.8%, 200%) show where price might go after completing the retracement — potential take profit targets.
How do I use Fibonacci in an uptrend?
In an uptrend: identify the swing low and swing high. Enter 'Buy' trades when price retraces to key levels (38.2%, 50%, 61.8%) with confirmation. Set take profit targets at extension levels (127.2%, 161.8%).
Why does Fibonacci work?
Fibonacci levels work largely because enough traders use them, creating self-fulfilling support and resistance. When millions of traders expect price to react at 61.8%, they place orders there, which causes the reaction they expected.
Most platforms (TradingView, MT4/MT5) include a Fibonacci retracement drawing tool — use this calculator to verify exact price levels or plan before your session.
Last updated: 12 July 2026 · Fibonacci ratios (23.6%, 38.2%, 50%, 61.8%, 78.6%, and extensions) are standard published values.