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Golden Ratio Calculator — Phi Grid for Photography

Find golden ratio division points for compositional guides on any image resolution.

How We Calculate This

The golden ratio uses phi (φ = 1.6180339887) to create proportional divisions:

Division Points

Primary division = dimension / φ ≈ 61.8% of total

Secondary division = dimension - primary ≈ 38.2% of total

Phi Grid

The phi grid creates a 3×3 grid similar to rule of thirds but with the centre column and row narrower. The four intersection points serve as placement guides for key elements.

Frequently Asked Questions

Last updated: February 2026

All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.