CSS Golden Ratio Calculator
Online CSS golden ratio calculator with golden section sizing, visual split preview, and automatic typography and spacing scale generation for web layout design and frontend styling.
Golden Ratio Calculator
Calculation result
Golden Ratio (φ)
φ ≈ 1.6180339887
Formula: larger / smaller = φ
The golden ratio is often used in art, architecture, and interface design to build balanced visual rhythm.
Visual preview
Golden spiral preview
Golden Ratio Type Scale
Generate a readable typography hierarchy based on φ
Golden Ratio Spacing Scale
Generate consistent spacing references from φ
Guide
CSS Golden Ratio Calculator helps you derive golden section values and generate typography plus spacing scales, so teams can apply one proportion system across design and frontend implementation.
Core Features
- Input any base size and instantly get the 61.8% and 38.2% split values.
- Switch between horizontal and vertical split modes for layout comparison.
- Generate a phi-based type scale to keep headings and body text in sync.
- Generate spacing levels that can be mapped to design tokens or CSS variables.
How To Use
- Enter a base size and calculate, or type directly for real-time updates.
- Toggle split direction and check divider position in both layouts.
- Review type and spacing scales, then pick levels for your UI system.
- Apply values to page layout, component spacing, and style presets.
Use Cases
- Build consistent type and spacing standards for frontend projects
- Validate layout proportion quickly during UI review sessions
- Define heading-body-spacing rules when designing component libraries
- Teach practical golden ratio usage in web layout classes
FAQ
- Why are values rounded: results are rounded to pixels so they are easier to apply in CSS.
- Can I change base scales for typography and spacing: this version uses practical defaults for fast comparison.
- Why is vertical preview taller: a taller box makes split position easier to inspect.
- Is my data uploaded: no, all calculations run locally in your browser.
Privacy
This tool does not upload your base values or results. Golden ratio calculation, visualization, and scale generation all run locally in your browser.