Is 2560×1600 the same as 8:5?

Yes — divide both sides by 320 (the GCD) to get 8:5. Use aspect-ratio: 8 / 5 and padding-top 62.50% for the legacy fallback.

How do I keep 2560×1600 from stretching?

Set aspect-ratio: 8 / 5 on the container and use object-fit: cover (crop-fill) or contain (letterbox). Never stretch via width/height alone.

What aspect ratio is 2560×1600?

8:5 (~1.6000:1)

2560×1600 simplifies to 8:5 (GCD 320). In decimal that is ~1.6000:1 — a custom 8:5 frame used for macbook-class, 16:10 displays. The calculator below is preloaded to 8:5 so you can solve any partner dimension at the same ratio.

No named calculator page covers this exact ratio, but the solver below handles any ratio — treat it as 8:5 for math.

Ratio W:Ratio H

Width (px)Height (px)

1920 × 1200

Exact ratio: 8:5 · CSS: aspect-ratio: 8 / 5 · padding-top fallback: 62.50%

How the ratio was computed

GCD(2560, 1600) = 320

2560 ÷ 320 = 8 → 1600 ÷ 320 = 5

→ 8:5 (dec. 1.6000:1) · padding-top 62.50%

CSS: aspect-ratio: 8 / 5

All math is local and instantly invertible — swap width and height and the ratio stays the same, just rotated. URL sharing works: ?w=2560&h=1600 style deep-links still resolve via the ratio parameters.

Quick 8:5 partner table

Width	Height (8:5)
640px	400px
1280px	800px
1920px	1200px
2560px	1600px
3840px	2400px

Other sizes in 8:5

1920×1200 — 1920×1200 WUXGA — 16:10 monitors, laptops
1280×800 — 1280×800 WXGA — 16:10 tablets, small laptops
1440×900 — 1440×900 WXGA+ — 16:10 budget laptops
1680×1050 — 1680×1050 WSXGA+ — 16:10 WSXGA+ monitors

Related lookups

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Tip: designing for 2560×1600 wqxga? Master at 2560×1600 exactly, then export lighter proxies by halving both sides (e.g. 1280×800) — the ratio stays 8:5 and downscales stay sharp.