This free Fibonacci retracement calculator instantly returns the key Fib levels — 23.6%, 38.2%, 50%, 61.8%, 78.6% — plus extension targets (1.272, 1.414, 1.618, 2.0, 2.618) from any swing high and low you enter. Fibonacci retracement levels are among the most-watched confluence zones on XAUUSD and forex charts because thousands of traders act at the same prices.
Fibonacci Retracement Calculator is part of the free Aurex Trader calculator suite — 23 browser-based tools for gold (XAUUSD) and forex traders. Nothing is installed, no account is required, and every calculation runs locally in your browser.
Formula: Uptrend Level = High − (High − Low) × Ratio | Downtrend Level = Low + (High − Low) × Ratio | Extension = beyond the swing in trend direction Example: XAUUSD swings from 2000 low to 2050 high (50-point range). 61.8% retracement = 2050 − (50 × 0.618) = 2019.10. 1.618 extension = 2050 + (50 × 0.618) = 2080.90.
The 61.8% level (the 'golden ratio') is watched most closely. Price often finds support there in an uptrend or resistance there in a downtrend. 50% (technically not a true Fib but included by convention) and 38.2% are also high-value confluence zones.
Use the most recent completed impulsive move on your trading timeframe — not micro-wiggles. On XAUUSD H1, that's usually the last clear 30–80 point leg. On H4, the last 100–300 point leg. Bigger swings produce more meaningful levels.
Extensions project take-profit targets once price breaks past the swing. Common targets are 1.272 (conservative), 1.618 (standard TP), and 2.618 (extended run). Combine with market structure — don't rely on Fibs alone.
Yes — and often exceptionally well because gold attracts high-timeframe institutional players who use the same tools. XAUUSD reversals on the 4H and daily 61.8% retracement are among the highest-win-rate setups in the market.
No. Fibs are a confluence tool, not a signal. Combine a Fib level with market structure (order block, liquidity sweep), a candlestick confirmation, and higher-timeframe bias. Naked Fib entries have below-average win rates.