What is aspect ratio?

Aspect ratio is the proportional relationship between width and height of an image or video, expressed as two numbers separated by a colon (e.g., 16:9).

How do I calculate aspect ratio?

To calculate aspect ratio, divide the width by the height and simplify the fraction. For example, 1920÷1080 = 16:9. Use our free calculator for instant results.

What is the most common aspect ratio?

16:9 is the most common aspect ratio, used for HD video, YouTube, and most modern displays. Other popular ratios include 4:3 (traditional TV), 1:1 (Instagram posts), and 9:16 (Instagram Stories, TikTok).

What aspect ratio is best for Instagram?

Instagram supports multiple aspect ratios: 1:1 (square posts), 4:5 (portrait posts), 16:9 (landscape posts), and 9:16 (Stories and Reels). Our calculator includes presets for all Instagram formats.

Golden Ratio Calculator - RatioGenie

Golden Ratio Calculator

Calculate perfect proportions using the golden ratio (φ ≈ 1.618) - nature's most beautiful mathematical relationship

Golden Ratio

1.618034

Exact Value

1.618:1

Classic Ratio

Calculate Golden Dimensions

Width

100.00 × 61.80

Perfect Golden Rectangle

Check Your Dimensions

Width

Height

Golden Rectangle Visualization

Small

100 × 62

Medium

150 × 93

Large

200 × 124

Design Applications

Common uses of the golden ratio in design and everyday objects

Business Card

1.586

ISO 216 standard

85.6 × 54.0Golden Ratio

Photo Frame

1.618

Classic proportions

161.8 × 100.0Golden Ratio

Logo Design

1.618

Brand identity

323.6 × 200.0Golden Ratio

Web Layout

1.618

Content area

1618.0 × 1000.0Golden Ratio

Fibonacci & Golden Ratio Connection

The ratio of consecutive Fibonacci numbers approaches the golden ratio

Fibonacci Sequence

1123581321345589144...

Ratios Approaching φ

1.615385

Step 6

1.619048

Step 7

1.617647

Step 8

1.618182

Step 9

1.617978

Step 10

1.618056

Step 11

1.618026

Step 12

1.618037

Step 13

Converges to φ = 1.618034