Briefly Digest

Video & Audio

Aspect ratio calculator

Given width and ratio, get height (or the reverse).

Ratio — leave height empty to compute from width, or width empty to compute from height.

Aspect ratio in production workflows

Editors export at target dimensions; developers need the math when CSS max-width constraints kick in. This calculator keeps campaigns consistent across Instagram squares, YouTube 16:9, and cinematic 2.39:1 plates.

Common ratios at a glance

4:3 dominated early television; 16:9 is default HD; 9:16 is vertical mobile; 1:1 is feed-friendly. Print uses physical inches—convert DPI separately when moving from screen to paper.

Responsive design tie-in

CSS aspect-ratio property preserves proportion while width flexes. Knowing the numeric ratio helps you pick padding-hack replacements or object-fit strategies for hero images.

Cropping versus scaling

Scaling preserves the full frame; cropping changes composition. Calculate ratio before export so art direction—not accidental resize—controls what the audience sees.

FAQ

What is aspect ratio?
The proportional relationship between width and height, often written as W:H (16:9) or a decimal (1.777). It stays constant when you scale uniformly.
Why does 1920×1080 equal 16:9?
Divide both dimensions by their greatest common divisor: 1920/120 = 16 and 1080/120 = 9. Many broadcast and web video standards use that ratio.
How do I avoid letterboxing?
Match the container ratio to the media ratio, or crop intentionally. Stretching unequal ratios distorts circles into ovals and faces into caricatures.

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