Free fib calculator · retracements and extensions

Fibonacci Retracement Calculator

Fibonacci retracement levels mark how far price may pull back inside a swing: the swing's range multiplied by 23.6%, 38.2%, 50%, 61.8% and 78.6%, measured back from the end of the move. Fibonacci extensions (127.2% to 261.8%) project beyond the swing and are used as targets when the move continues.

Enter a swing high and low to get the Fibonacci retracement levels and extension targets; it works as a Fibonacci extension calculator too. Gold's, EUR/USD's and GBP/USD's latest daily or weekly range is filled in to start with. Free, no sign-up, updates as you type.

Fibonacci levels for a move down of 144.03

Fibonacci retracement and extension levels
Level	Ratio	Price
Extension	261.8%	3,840.40
Extension	200%	3,929.41
Extension	161.8%	3,984.43
Extension	141.4%	4,013.81
Extension	127.2%	4,034.26
Swing low	100%	4,073.44
Retracement	23.6%	4,107.43
Retracement	38.2%	4,128.46
Retracement	50%	4,145.46
Retracement	61.8%	4,162.45
Retracement	78.6%	4,186.65
Swing high	0%	4,217.47

Extensions sit below the low and are measured from the start of the swing. Reference levels, not predictions.

Check gold's structure before you trade a levelOur gold analysis page shows the latest structure breaks and the reaction areas our bots are watching.Today's gold analysis →

How to calculate Fibonacci retracements

After an up move: level = swing high − (swing high − swing low) × ratio

After a down move the levels are measured up from the swing low instead.

Using it as a Fibonacci extension calculator

Extensions use the same range: for an up move, extension = swing low + range × ratio, so the 161.8% extension sits 61.8% of the range above the high. Traders use 127.2% and 161.8% as first targets when a move continues past its previous swing.

Worked example: gold rallies from 4,100 to 4,200. The range is 100, so the 38.2% retracement is 4,200 − 38.2 = 4,161.80, the 50% is 4,150.00 and the 61.8% is 4,138.20. The 161.8% extension is 4,100 + 161.8 = 4,261.80.

A rally from 4,100 to 4,200 with Fibonacci retracements at 23.6% (4,176.40), 38.2% (4,161.80), 50% (4,150.00), 61.8% (4,138.20) and 78.6% (4,121.40), and extensions at 127.2% (4,227.20) and 161.8% (4,261.80) — Retracements measure the pullback inside the swing; extensions project the next leg beyond it.

Fibonacci levels and order blocks

Smart money traders often check whether an order block lines up with the 50% or 61.8% retracement of the move that created it, sometimes called the discount or premium half of the range. Our bots don't use Fibonacci at all: they wait for price to return to the order block after a liquidity sweep and a structure shift. The areas they're watching on gold right now are on the gold analysis page.

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Fibonacci calculator FAQ

How do you calculate Fibonacci retracement levels?

Take the swing range (high − low) and multiply it by each ratio. After an up move, each retracement is the swing high minus range × ratio; after a down move it is the swing low plus range × ratio. With a high of 200 and a low of 100, the 61.8% retracement of an up move is 200 − 100 × 0.618 = 138.20.

Which Fibonacci levels matter most?

38.2%, 50% and 61.8% are the retracements traders watch most; 50% isn't a Fibonacci ratio but is included by convention. For extensions, 127.2% and 161.8% are the common first targets. None of them is special on its own: they matter only because many traders watch them.

Which swing high and low should I use?

Use a clear swing that the market obviously respected: the start and end of the last strong move on the timeframe you trade. Picking a different swing gives different levels, which is the main weakness of Fibonacci tools, so decide on the swing before you look at where price is now.

What is the difference between a retracement and an extension?

A retracement measures how far price pulls back inside the swing (below 100%). An extension projects beyond the end of the swing (above 100%), and traders use it for targets when the move continues.

Educational, not financial advice. Trading involves risk of loss.