Fibonacci Retracement Calculator — Key Trading Levels
Input any swing high and low to instantly get retracement levels at 23.6%, 38.2%, 50%, 61.8%, and 78.6% — plus extension targets at 127.2%, 161.8%, and 261.8%. Fibonacci levels are self-fulfilling because institutional and retail traders watch the same zones simultaneously. Works for forex, stocks, crypto, and futures on any timeframe.
Updated · Reviewed by Foysal Mostafa
Retracement Levels
Highlighted = key levels
Extension Levels (Targets)
Use for take-profit targets
Why Use the Fibonacci Calculator?
Drawing Fibonacci levels manually on every new swing wastes time and introduces errors. This calculator gives you all key retracement and extension levels instantly so you can focus on reading price action at those levels rather than on the arithmetic. Works on any instrument and any timeframe.
Formula Used
Retracement Level = High − (High − Low) × Fibonacci RatioWorked Example
EUR/USD uptrend: swing low = 1.0800, swing high = 1.1200 (400-pip move). Key retracement levels: 23.6% = 1.1106 (small pullback), 38.2% = 1.1047, 50% = 1.1000 (psychological), 61.8% = 1.0953 (golden ratio — most watched), 78.6% = 1.0886 (deep retracement). Extension levels for targets: 127.2% = 1.1309, 161.8% = 1.1447.
How to Use the Fibonacci Calculator — Step by Step
- 1
Identify your swing high and low
Find a significant price swing on your chart — a clear impulse move up or down. The swing high is the top of the move and the swing low is the bottom.
- 2
Enter the swing high price
Input the price of the recent swing high (the highest point of the move you are analysing).
- 3
Enter the swing low price
Input the price of the recent swing low (the lowest point of the move).
- 4
Select trend direction
Choose Uptrend if price rallied from low to high (you expect a pullback then continuation up). Choose Downtrend if price fell from high to low (you expect a bounce then continuation down).
- 5
Read the Fibonacci levels
The calculator shows retracement levels (23.6% to 78.6%) where price may pull back and extension levels (127.2% to 261.8%) for take-profit targets beyond the swing.
What Your Fibonacci Calculator Results Mean
Retracement Levels (23.6% – 78.6%)
Price zones where the market may pause or reverse during a pullback within the existing trend. The 61.8% (golden ratio) and 38.2% levels are the most widely watched by institutional traders.
Extension Levels (127.2% – 261.8%)
Price targets beyond the original swing high or low for continuation moves. Extensions at 127.2% and 161.8% are the most commonly used take-profit targets when trading a confirmed Fibonacci setup.
Price Direction
Confirms whether levels are drawn for an uptrend (retracement from high toward low) or downtrend (retracement from low toward high), ensuring support and resistance levels are correctly oriented.
Fibonacci Calculator — Frequently Asked Questions
Q.What is Fibonacci retracement in trading?
Fibonacci retracement levels are horizontal price zones derived from the Fibonacci sequence. After a strong price move, traders expect price to retrace (pull back) to one of these levels before continuing in the original direction. The most important levels are 38.2%, 50%, and 61.8%.
Q.Which Fibonacci level is most important?
The 61.8% level (the "golden ratio") is considered the most significant. The 38.2% and 50% levels are also widely watched. A confluence of multiple Fibonacci levels at the same price zone creates a stronger potential support or resistance area.
Q.What is the difference between retracement and extension?
Retracement levels (23.6%–78.6%) are used to find pullback entry zones within an existing trend. Extension levels (127.2%, 161.8%, 261.8%) are used to project take-profit targets beyond the original swing high or low.
Q.Do Fibonacci levels work in all markets?
Yes. Fibonacci levels are used in forex, stocks, crypto, commodities, and indices. They work because they are self-fulfilling — when enough traders watch the same levels and react to them, those levels become meaningful price zones regardless of the underlying mathematical reason.
Q.Is the 61.8% Fibonacci level the most important?
The 61.8% level (the "golden ratio") is considered the most powerful Fibonacci retracement level and is watched by more traders than any other. However, confluence matters more than any single level — a 61.8% retracement that also aligns with a key support level, a pivot point, or a moving average is significantly stronger than a 61.8% level in isolation.
About the Author
Forex Trader & Software Developer · Founder, TradeCalc
Active forex trader since 2019, specializing in risk management and systematic position sizing. Built TradeCalc to replace manual spreadsheets used in live trading. Every calculator is cross-verified against broker platforms before publishing.
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