Aspect Ratio & Resolution Scaler

Scale display resolutions (16:9, 9:16, 4:3, 21:9) with interactive proportional canvas preview.

Input Parameters

Aspect Ratio Width

Aspect Ratio Height

Width (px)

Height (px)

Reference Standards & Guidance:

Calculated Proportional Dimensions

1920 × 1080

16:9 (1.778:1)

1920 × 1080

175 available

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Scale screen resolutions keeping 16:9, 9:16, 4:3 or 21:9 proportions, with visual aspect preview.

What is 16:9 in pixels?

Any width/height pair with that ratio, e.g. 1920×1080 (Full HD) or 3840×2160 (4K).

What about portrait video?

Use 9:16 — the vertical flip of 16:9 for phones and stories.

What is ultrawide?

21:9 (technically 64:27) suits cinema timelines and immersive gaming.