# Golden Ratio

> Calculate dimensions based on the mathematical beauty of the Golden Ratio (φ ≈ 1.618).

Page: https://askcalculators.com/calculator/golden-ratio-calculator/
Definition: https://askcalculators.com/calculator/golden-ratio-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/golden-ratio-calculator/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/golden-ratio-calculator/?value=100&mode=A

## Inputs
- value: Value; type=number; optional; default=100
- mode: Mode; type=select; optional; default=A

## Outputs
- result: Result; format=text; primary

## Formula
For a:b = φ:1, larger part = total × φ ÷ (1+φ) and smaller part = total ÷ (1+φ), where φ = (1+√5)÷2.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.