Golden Ratio Calculator — Phi Grid for Photography
Find golden ratio division points for compositional guides on any image resolution.
Width in pixels
Height in pixels
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 3x3 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
Related Calculators
Rule of Thirds Calculator
Calculate rule of thirds grid intersection points for any image size. Get exact pixel coordinates for placing key subjects on the grid. Free online calculator.
Golden Spiral Calculator
Calculate golden spiral overlay dimensions and focal point position for your frame size. Guide the viewer eye through your composition. Free online calculator.
Panorama Calculator
Plan panorama shots with recommended overlap percentage, number of frames and total field of view coverage. Get sharp, seamless stitches. Free online calculator.
Photo Merge Calculator
Calculate the final resolution and file size when merging multiple images into a panorama or composite. Plan storage and output dimensions. Free calculator.
Symmetry Calculator
Find the precise centre lines and symmetry axes for your frame dimensions. Achieve perfect symmetrical compositions in architecture and reflections. Free calculator.
Last updated: February 2026
All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.