Print size · US

30×40 in print size

Exactly how many pixels a 30×40 in print needs — and how much your camera's frame gets cropped.

108.0 MP
Needed at 300 DPI
48.0 MP
Needed at 200 DPI
101.6×76.2 cm
Size in cm
1.33:1
Aspect ratio
75 in
Typical viewing distance

Pixels needed for a 30×40 in print#

At normal viewing distance (≈1.5× the diagonal, 1.9 m) about 200 DPI is indistinguishable from 300 DPI for most viewers.

ResolutionQualityPixel dimensionsMegapixels
360 DPIExceptional (close inspection)14,400 × 10,800 px155.5 MP
300 DPIPhoto-lab standard12,000 × 9,000 px108.0 MP
240 DPIFine-art inkjet9,600 × 7,200 px69.1 MP
200 DPILarge wall print8,000 × 6,000 px48.0 MP
150 DPIPoster, viewed from 1 m+6,000 × 4,500 px27.0 MP
100 DPIBillboard / banner4,000 × 3,000 px12.0 MP

Cropping from your camera#

Camera aspect ratioWhat happensImage kept
3:2 (full frame, APS-C)Crop the long side89%
4:3 (MFT, phones)No crop needed100%
16:9Crop the long side75%
1:1Crop the short side75%
Maximum print size—
In centimetres—
Megapixels · aspect ratio—

Will my camera be enough?#

A 24 MP camera (6000 × 4000 px) prints 150 DPI on the long side at 30×40 in — fine at normal viewing distance. A 12 MP phone (4032 × 3024) gives 101 DPI. See the 102 megapixel guide.

Large gallery print.

Other print sizes#

Wallet (2.5×3.5 in)3.5×5 in4×6 in5×5 in5×7 in6×8 in8×8 in8×10 in8.5×11 in (US Letter)8×12 in10×10 in11×14 in12×12 in11×17 in (Tabloid)12×16 in12×18 in13×19 in (Super B / A3+)16×20 in16×24 in18×24 in20×24 in20×30 in24×30 in24×36 in40×60 inA6 (105×148 mm)A5 (148×210 mm)A4 (210×297 mm)A3 (297×420 mm)A3+ (329×483 mm)A2 (420×594 mm)A1 (594×841 mm)A0 (841×1189 mm)10×15 cm13×18 cm20×30 cm30×40 cm30×45 cm40×60 cm50×70 cm60×90 cm

Frequently asked questions#

How many megapixels do I need for a 30×40 in print?

108.0 MP for 300 DPI photo-lab quality, 48.0 MP at 200 DPI, and 27.0 MP at 150 DPI.

What resolution is 30×40 in at 300 DPI?

12,000 × 9,000 pixels.

Last updated October 03, 2026 · How we calculate · Sources