Fibonacci Calculator
Enter Swing High and Swing Low. Toggle uptrend / downtrend to get retracement and extension levels.
Results
Retracement Levels
Extension Levels
About the Fibonacci Calculator
The Fibonacci Calculator turns a single swing high and swing low into the full set of retracement levels (23.6%, 38.2%, 50%, 61.8%, 78.6%) and extension targets (127.2%, 161.8%, 200%, 261.8%). Choose uptrend or downtrend and it measures the levels in the right direction — retracements for pullback entries, extensions for profit targets.
Frequently Asked Questions
What are the key Fibonacci retracement levels?
The most-watched retracement levels are 23.6%, 38.2%, 50%, 61.8% and 78.6%. The 61.8% level (the golden ratio) and the 50% midpoint are where pullbacks most often find support or resistance before the trend resumes.
How do I use Fibonacci extensions for targets?
Extensions project how far price may travel once it breaks beyond the swing that formed the retracement. Common targets are 127.2%, 161.8%, 200% and 261.8% measured from the swing, and many traders scale out profits as price reaches each one.
Should I use the 50% level even though it is not a Fibonacci number?
Yes. The 50% retracement is not part of the Fibonacci sequence, but it is widely watched as the midpoint of a move and often acts as support or resistance, so most charting tools include it alongside the true Fibonacci ratios.