Decimal Ratio 0.75 · All iPhones, Google Pixel, Samsung Galaxy, iPad, and Micro Four Thirds cameras

3:4 (4:3) Smartphone Native Aspect Ratio Print Sizes & Pixel Chart

Standard print sizes that match the 3:4 (4:3) Smartphone Native ratio include 6×8, 9×12, 12×16, 18×24, 24×32, 30×40, 36×48 inches. Zero crop from smartphone cameras! Best ratio to print phone photos without cutting edges.

Print Size	Metric (cm)	Pixels @ 300 DPI	Pixels @ 150 DPI	Best Use
9×12"	22.9×30.5 cm	2700×3600 px	1350×1800 px	4:3 smartphone photo enlargement without cropping top or bottom.
12×16"	30.5×40.6 cm	3600×4800 px	1800×2400 px	Native 4:3 iPhone/Pixel photo print at true wall scale.
18×24"	45.7×61 cm	5400×7200 px	2700×3600 px	ArchitecturalA2/medium poster size (3:4 ratio) — fits smartphone shots cleanly.
30×40"	76.2×101.6 cm	9000×12000 px	4500×6000 px	Oversized 3:4 architectural canvas that anchors a whole wall.
36×48"	91.4×121.9 cm	10800×14400 px	5400×7200 px	Extra-large 3:4 gallery piece for vaulted living rooms and lobbies.

Crop Your Photo to 3:4 (4:3) Smartphone Native (9×12")

Runs in your browser — your photos never leave your device. Exports embed true 300 DPI metadata in PNG (pHYs) and JPEG (JFIF).

Print Ratio Presets:

Horizontal Position (0%)Vertical Position (0%)

Width (in)Height (in)Header DPI

Bleed Margin

Source Image:3024 × 4032 px (3:4)

Cropped Output:3024 × 4032 px (3:4)

Area Retained:100% of photo

Effective source resolution:336 PPI at 9×12

File density metadata:300 PPI

Changing the file's DPI metadata doesn't add detail.

Export Print-Ready File (300 DPI Embedded)

Print-readiness summary

9×12 in

336 PPI · Excellent

Aspect ratio: 3:4· no crop needed
Effective resolution: 336 PPI — Excellent (300+ PPI)
Material / wrap: Exact size, no bleed

Verdict: 336 PPI at 9×12 in — Excellent. This photo already matches the print ratio.

9x12 in, 3:4

Ready to Print

Where to print a 9×12 canvas print

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Easy Canvas PrintsOffers 1.5in gallery wrap

Fast U.S. stretched photo canvases in standard & custom wall sizes.

Best for: Homeowners printing phone or camera photos on 0.75" or 1.5" gallery wrap.

Print this at 9×12 on Easy Canvas Prints →

Checked 2026-11-03

CanvasChamp

Budget-friendly custom sizes up to oversized wall formats & split canvases.

Best for: Custom dimensions, multi-panel triptychs, and low entry cost per square foot.

Choose 9×12 on their site after you open the link.

Choose 9×12 on their site →

Checked 2026-11-01

CanvasPop

Hand-stretched archival canvas with optional designer proof inspection.

Best for: Family portraits, wedding photos, and lower-resolution files needing gentle handling.

Choose 9×12 on their site after you open the link.

Choose 9×12 on their site →

Checked 2026-11-01

All Print Aspect Ratios

1:1 Square 4:5 Traditional Portrait 2:3 (3:2) Full-Frame Photo 3:4 (4:3) Smartphone Native 5:7 Greeting & Desk Frame 11:14 Gallery Portrait 16:9 Widescreen Cinema 1:√2 (1:1.414) ISO A-Series