Is 1125×2436 the same as 375:812?

Yes — divide both sides by 3 (the GCD) to get 375:812. Use aspect-ratio: 375 / 812 and padding-top 216.53% for the legacy fallback.

How do I keep 1125×2436 from stretching?

Set aspect-ratio: 375 / 812 on the container and use object-fit: cover (crop-fill) or contain (letterbox). Never stretch via width/height alone.

What aspect ratio is 1125×2436?

375:812 (~0.4618:1)

1125×2436 simplifies to 375:812 (GCD 3). In decimal that is ~0.4618:1 — a custom 375:812 frame used for iphone x/xs notch. The calculator below is preloaded to 375:812 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 375:812 for math.

Ratio W:Ratio H

Width (px)Height (px)

1920 × 4157

Exact ratio: 375:812 · CSS: aspect-ratio: 375 / 812 · padding-top fallback: 216.53%

How the ratio was computed

GCD(1125, 2436) = 3

1125 ÷ 3 = 375 → 2436 ÷ 3 = 812

→ 375:812 (dec. 0.4618:1) · padding-top 216.53%

CSS: aspect-ratio: 375 / 812

All math is local and instantly invertible — swap width and height and the ratio stays the same, just rotated. URL sharing works: ?w=1125&h=2436 style deep-links still resolve via the ratio parameters.

Quick 375:812 partner table

Width	Height (375:812)
640px	1386px
1280px	2772px
1920px	4157px
2560px	5543px
3840px	8315px

Other sizes in 375:812

No other catalogued sizes share 375:812 exactly — the table above covers the common computed variants.

Related lookups

← Back to the calculator · FAQ →

Tip: designing for 1125×2436 iphone x? Master at 1125×2436 exactly, then export lighter proxies by halving both sides (e.g. 563×1218) — the ratio stays 375:812 and downscales stay sharp.