## About This Tool

The online Golden Section Calculator is used to calculate the missing values to complete the golden section.

## Golden Section

The golden section is a line segment divided according to the golden ratio (approximately 1.6180339887): The total length *a + b* is to the length of the longer segment *a* as the length of *a* is to the length of the shorter segment *b* (see image above).

a + b : a = a : b = 1.6180339887...