This tool computes the standard Fibonacci retracement (0.236–0.786) and extension (1.272, 1.618) levels between any two price points. Designed for Australia traders who need clean, broker-independent math — no account, no data sharing.
How it works
Fibonacci retracement levels identify potential support and resistance zones by measuring how much of a prior move has been retraced. Extensions project where price might go beyond the original move. The calculator takes a swing high and swing low, then applies fixed ratios to find each level.
Level = high - (high - low) × ratio
for ratios 0.236, 0.382, 0.500, 0.618, 0.786, 1.272, 1.618
The formula is pure arithmetic — no rounding until the final step. For AUD-denominated accounts, the result is in pips of the quoted pair (e.g., AUD/USD pip = 0.0001). Lot size does not affect the level calculation, only the monetary value per pip.
Worked example
Example: AUD/USD
- Swing high: 0.6720
- Swing low: 0.6520
- Range: 0.0200 (200 pips)
We multiply the range by each ratio, subtract from the high for retracements, add to the high for extensions. For 61.8% retracement: 0.6720 - (0.0200 × 0.618) = 0.6720 - 0.01236 = 0.65964, rounded to 0.6597. For 1.272 extension: 0.6720 + (0.0200 × 1.272) = 0.6720 + 0.02544 = 0.69744, but since the extension measures below the low: 0.6520 - (0.0200 × 1.272) = 0.6520 - 0.02544 = 0.62656? Wait — correction: extension levels project beyond the low (downward) or high (upward). For downward extension: low - (range × ratio) = 0.6520 - (0.0200 × 1.272) = 0.6520 - 0.02544 = 0.6266.
Result: 61.8% retracement at 0.6597; 1.272 extension at 0.6266 per pip (0.0001 AUD/USD)
A round-trip trade at the 61.8% level would cost approximately 0.6 pips in spread on AUD/USD under normal conditions.
Edge cases
- JPY pairs — pip step is 0.01, not 0.0001. All levels display two fewer decimal places. The math is identical; only display changes.
- Non-AUD account — if your account is in USD or EUR, the pip value differs. This calculator shows the level in quote currency pips; multiply by your account's pip value formula.
- Mini/micro lots — the level is the same regardless of lot size. Only monetary exposure scales linearly with lot size.
- Negative range — if high < low, the calculator swaps them automatically.
Glossary
- Fibonacci retracement — technical analysis tool using horizontal lines to indicate where support/resistance may occur based on Fibonacci ratios.
- Support — price level where buying pressure is expected to overcome selling pressure, halting a decline.
- Resistance — price level where selling pressure is expected to overcome buying pressure, halting an advance.
FAQ
How accurate is this Fibonacci Retracement Calculator?
The math is exact to the pip. The only variable is the rate data — we use a live feed, but if your broker's rates differ by 0.2–0.5 pips, the levels will shift accordingly.
Does it work for any broker?
Yes. The formula is universal across all brokers and platforms (MT4, MT5, cTrader, proprietary). No broker-specific adjustments needed.
What if my pair isn't in the dropdown?
Contact us via the support chat with the pair name and we'll add it. Alternatively, enter the high and low manually — the calculator works with any two price points.
Why does the result differ from my broker's panel?
Brokers may round levels differently, apply spread mark-ups, or use a slightly different range (e.g., wicks vs. closes). This calculator uses exact candle extremes.
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