Enter either the length or width of a golden rectangle into the calculator to determine the missing side length.

## Golden Rectangle Ratio Formula

The following formula is used to calculate a golden rectangle ratio.

(a+b)/a = a/b = 1.6180339..
• Where a is the length
• b is the width
• and 1.6180399 is the golden ratio

## Golden Rectangle Ratio Definition

A golden rectangle is defined as a rectangle whose length to width ratio is equal to the golden ratio which is approximately 1.6180399.

## Golden Rectangle Ratio Example

How to calculate a golden rectangle ratio?

1. First, determine the length or width.

Determine or calculate the length or width of the rectangle.

2. Next, determine the missing value.

Calculate the missing length or width using the golden ratio and equation above.

## FAQ

What is a golden rectangle ratio?

A golden rectangle is a rectangle whos ratio of length to width is equal to the golden ratio of 1.6180399.