Golden Ratio Calculator Plus

Golden Ratio Calculator is the essential tool for designers, architects, photographers, and anyone who works with proportions. Instantly calculate golden ratio values, explore the Fibonacci sequence, and apply phi-based design presets — all in one beautiful, easy-to-use app.

GOLDEN RATIO CALCULATOR Enter any value as the total length (a+b), the longer side (a), or the shorter side (b) — results update instantly. See the golden segments visualized with a proportional color bar, the iconic golden spiral, and step-by-step calculation breakdowns showing a/b and (a+b)/a converging to 1.618. Tap any result to copy. Supports px, mm, cm, and % units.

FIBONACCI SEQUENCE Generate up to 40 Fibonacci numbers and watch the consecutive ratios converge toward phi. Color-coded indicators show how close each ratio is to the true golden ratio — a perfect way to understand the deep connection between Fibonacci and phi.

DESIGN PRESETS Put the golden ratio to work in real projects: • Golden Spacing — Set a base value and see margins and padding scaled by phi, phi², phi³, and phi⁴. Editable base for quick iteration. • Typography Scale — Enter a base font size and get a complete type hierarchy scaled by the golden ratio, from Body to Display. • Image Cropping — Switch between width and height input, then see auto-calculated dimensions for golden landscape (1.618:1), golden portrait (1:1.618), and phi panorama (2.618:1) crops.

CALCULATION HISTORY Every calculation you save is stored with its a+b, a, and b values for quick reference. Swipe to delete individual entries or clear all at once.

REFERENCE GUIDE A built-in reference sheet covers everything you need: what the golden ratio is, its mathematical formula, key properties (phi² = phi + 1, 1/phi = phi − 1), the Fibonacci connection, golden rectangle and sidebar layout ratios, and real-world design applications in typography, layout, photography, and UI design.

WHY GOLDEN RATIO CALCULATOR? • Real-time results — no calculate button needed • Visual segment bar and golden spiral illustration • Three input modes: total, side a, or side b • Tap-to-copy on result • Supports multiple units (px, mm, cm, %) • Works on iPhone and iPad • Clean, intuitive interface designed with the golden ratio itself

Whether you are sizing UI components, choosing font scales, cropping images, or simply exploring one of mathematics' most fascinating numbers, Golden Ratio Calculator gives you precise answers in seconds. Download now and bring the beauty of phi into your workflow.

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