Fibonacci calculator (retracement and extension)
Calculate Fibonacci retracement and extension levels from the high and low of a move.
How to useFibonacci levels for technical analysis
Educational tool, not investment advice.
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Fibonacci calculator (retracement and extension): what it is for
Enter the low and high of the move and choose the trend. The calculator lists the Fibonacci retracement levels, where price tends to react, and the extensions, used as targets.
Educational tool: the calculations are estimates and not investment advice.
How to use
- Choose up or down.
- Enter low and high.
- See retracements and extensions.
When to use it
- Mark support and resistance.
- Set targets for a move.
- Study technical analysis.
Frequently asked questions
What are Fibonacci retracements?
They are levels (23.6%, 38.2%, 50%, 61.8% and 78.6%) where price tends to pause or reverse after a strong move. The percentages come from the Fibonacci sequence.
How do I use the extension?
To project targets beyond the top (or bottom): 127.2%, 161.8% and 261.8% of the original move are the most used levels.
How do I pick the low and the high?
Use the start and end of the move you want to measure. In an uptrend the low comes before the high; for a downtrend choose 'Down'.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 are free.