What is the golden ratio?

φ (phi) ≈ 1.618. Two positive numbers a and b are in the golden ratio if a/b = φ (or equivalently (a+b)/a = a/b).

How is the other value computed?

If you enter a, the other is a/φ or a×φ depending on whether a is the larger or smaller part.

Given one number, find the other so that their ratio equals φ (golden ratio ≈ 1.618). Or display φ.

φ ≈ 1.618034

One number (a or b where a/b = φ)

This number is the

Larger part (a)Smaller part (b)

What is the golden ratio?: φ (phi) ≈ 1.618. Two positive numbers a and b are in the golden ratio if a/b = φ (or equivalently (a+b)/a = a/b).
How is the other value computed?: If you enter a, the other is a/φ or a×φ depending on whether a is the larger or smaller part.

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