3:2 Aspect Ratio Calculator
The still-photo classic: 35mm film and most DSLRs shoot 3:2. Solve prints and exports without cropping.
3:2 (1.5:1) comes from 35mm film — 36×24mm — and every full-frame and APS-C camera still shoots it. 6000×4000, 3000×2000 and 1800×1200 are all 3:2. Printing 3:2 on 4×6, 6×9 or 12×18 paper fills edge-to-edge; sending it to 16:9 or 4:3 anywhere crops or pillars.
1920 × 1280
Exact ratio: 3:2 · CSS: aspect-ratio: 3 / 2 · padding-top fallback: 66.67%
Formula
height = width × 2 ÷ 3
width = height × 3 ÷ 2
// padding-top fallback: 66.67% — keeps layout stable before the image loads
aspect-ratio: 3 / 2 — modern replacement for the padding hack
All math runs locally in your browser. No upload. Type either side, the other solves live — and the URL updates so you can share an exact pair (?w=1920&rw=3&rh=2) or bookmark a preset.
Common 3:2 resolutions
| Width | Height | Use |
|---|---|---|
| 320px | 213px | |
| 640px | 427px | |
| 1280px | 853px | |
| 1920px | 1280px | |
| 2560px | 1707px | |
| 3840px | 2560px | 4K |
| 5120px | 3413px | |
| 7680px | 5120px |
Exact known sizes in this ratio
- 6000×4000 — 6000×4000 24MP 3:2 (Full-frame DSLR still (24MP))
When to use 3:2
- DSLR/mirrorless still exports
- 4×6 and 6×9 prints (exact fit, no crop)
- Lightroom classic 3:2 crop
- 35mm film scanning at native ratio
Pitfalls to avoid
- Printing 3:2 at 5×7 or 8×10 crops the long edge — pick 4×6 or crop intentionally
- Instagram 4×5 crops a 3:2 vertical
CSS snippet
Modern:
.frame { aspect-ratio: 3 / 2; width: 100%; overflow: hidden; }
.frame > img { width: 100%; height: 100%; object-fit: cover; }Legacy padding hack (for very old browsers):
.wrap { position: relative; width: 100%; padding-top: 66.67%; }
.wrap > * { position: absolute; inset: 0; }Pair with object-fit: contain to letterbox without cropping, or cover to fill and crop safely.
Platform reference
Frequently asked
What print size is 3:2?
4×6, 6×9, 8×12, 12×18, 16×24 — any size where the long edge is 1.5× the short edge.
Is 3:2 the same as 2:3?
Same frame rotated. 3:2 is landscape, 2:3 is portrait — swap width and height.
How many megapixels is 6000×4000?
24 MP — and perfectly 3:2.
Tip: add ?w=1920 or ?h=1080 to this URL to prefill the calculator — useful for linking from a spec doc.
Other ratios
- 16:9 Aspect Ratio Calculator
- 4:3 Aspect Ratio Calculator
- 1:1 Square Calculator
- 9:16 Vertical Calculator
- 21:9 Ultrawide Calculator
- 16:10 Aspect Ratio Calculator
- 4:5 Portrait Calculator
- 2:1 Aspect Ratio Calculator
Look up by resolution
- 1920×1080 — 1920×1080 Full HD
- 1280×720 — 1280×720 HD
- 3840×2160 — 3840×2160 4K UHD
- 2560×1440 — 2560×1440 QHD
- 1366×768 — 1366×768 WXGA
- 3440×1440 — 3440×1440 UW-QHD
What aspect ratio is 1920×1080? → · Full FAQ →