The proportional compass is a physical drafting tool used to measure and transfer ratios directly from charts. This digital version does the same: enter your swing ranges, and it calculates the 38.2%, 50%, and 61.8% levels for each, detects where they overlap into confluence zones, and computes your risk-to-reward ratio.

How to use: Add at least 2 ranges that share a common pivot. The calculator finds where their Fibonacci levels cluster. Then enter your planned entry, stop, and target to verify the 1:3 minimum R:R. For the full methodology, see The Living Grid.

Add Swing Ranges

No ranges added yet.

Risk-to-Reward Calculator

Worked example: Centex (CTX)

Range 1: High $48.00 → Low $42.00. Range 2: High $47.00 → Low $42.50. Range 3: High $46.50 → Low $42.20. Confluence zone x1 forms near $44.00 (overlap of 38.2% and 50%). Zone x2 near $46.00. Entry $44, Stop $46, Target $50+ yields 1:3 R:R. Click "Load Centex" to pre-fill.

How This Works

Step 1: Draw Multiple Ranges

Constance Brown's methodology requires multiple ranges drawn from the same pivot point. A single Fibonacci retracement is weak. Overlapping ratios from multiple ranges create confluence zones — price areas where the market has multiple geometric reasons to turn.

Signal Card: Confluence Zone Detection

The calculator computes 38.2%, 50%, and 61.8% for each range, then clusters levels that fall within a tolerance band (5% of the first range's width, minimum 0.3 price units). A cluster of 2+ levels from different ranges qualifies as a confluence zone.

Step 2: Verify the 1:3 Risk-to-Reward Ratio

Brown demands a minimum 1:3 R:R for all trades. The confluence zones give you precise entry and stop levels. The target is the next confluence zone or structural level. If the math does not offer at least 1:3, skip the trade.

Expectancy at various win rates (1:3 R:R)
30% WR → Expectancy = (0.30 × 3) − (0.70 × 1) = +0.20 (profitable)
40% WR → Expectancy = (0.40 × 3) − (0.60 × 1) = +0.60 (profitable)
50% WR → Expectancy = (0.50 × 3) − (0.50 × 1) = +1.00 (strong edge)

Step 3: Never Use Even Numbers for Stops

Round numbers cluster with stop orders. Market makers hunt them. An odd-numbered stop — $46.17 instead of $46.00 — sits in the noise. The calculator does not enforce this, but you should.

Rule: "When you enter stops, never use an even number in any market." — Constance Brown. This applies to all asset classes.

Related Guides

The Living Grid

The complete Fibonacci confluence methodology: range selection, internal milestones, and the geometric framework.

Advanced

The Protective Reef

Stop placement rules for geometric trading. How confluence zones define your exit before you enter.

Intermediate

The Swell and the Setback

How markets expand and contract their proportional swings — and why symmetry is the exception.

Intermediate

Stockhelm is a market intelligence publication dedicated to helping investors navigate uncertainty with clarity, discipline, and the right instruments. This dispatch is for informational purposes and does not constitute investment advice. Methodology adapted from Fibonacci Analysis by Constance Brown (Bloomberg Press, 2008).