Golden Ratio Calculator — φ Calculator: proportions, Fibonacci & design

Golden Ratio Calculator (φ)

Explore the divine proportion: compute larger / smaller parts from any value, check proportions, and see Fibonacci ratios approach φ ≈ 1.6180339887.

Step 1: Enter dimensions

⚡ How it works

Enter any one value (A, B, or total). The others are calculated to maintain the golden ratio φ = (1+√5)/2 ≈ 1.618. For perfect proportion: A/B = φ and (A+B)/A = φ.

Step 2: References

✨ Golden ratio in nature

φ appears in art, architecture, and nature (nautilus shells, sunflowers). Fibonacci numbers (0,1,1,2,3,5,8,13…) converge to φ.

Golden Ratio Results

Summary
Fibonacci & Ratios
Formula & Visual

Golden ratio φ (constant)

1.618034
φ’ = 0.618034
Larger part (A)
10.00
Smaller part (B)
6.18
Total (A+B)
16.18
A / B
1.618

Fibonacci numbers approach φ

n Fibonacci F(n) F(n)/F(n-1) Difference from φ

Golden rectangle proportion

Formula

φ = (1 + √5) / 2 ≈ 1.6180339887

If A is the larger part and B the smaller: A/B = (A+B)/A = φ.
From any single value we compute the others using φ and 1/φ.

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