SizeKit reference

12 x 18 Photo Size

Find 12 x 18 Photo size in mm, cm, inches, pixels, and common DPI values.

12 x 18 Photo size is 304.8 x 457.2 mm, or 12 x 18 in. At 300 DPI, 12 x 18 Photo is 3600 x 5400 px.

Immediate answer

12 x 18 Photo at a glance

Use these defaults for quick design, print, or layout decisions.

Compare group
Millimeters 304.8 x 457.2 mm physical size
Inches 12 x 18 in rounded
Pixels at 300 DPI 3600 x 5400 px print-ready default

SizeKit

Use 12 x 18 Photo for

Choose the page path based on the next decision, not on calculator settings.

CMP Compare nearby sizes Open related sizes before choosing a format.

SizeKit

12 x 18 Photo key dimensions

The same values in compact cards for scanning.

Millimeters
304.8 x 457.2
mm
Centimeters
30.48 x 45.72
cm
Inches
12 x 18 in
rounded
300 DPI
3600 x 5400 px
pixels

SizeKit

12 x 18 Photo pixel table

Common DPI values for designers and print workflows. Use the bottom calculator bar for custom DPI or orientation.

DPIPortrait pixelsLandscape pixels
72 DPI864 x 1296 px1296 x 864 px
96 DPI1152 x 1728 px1728 x 1152 px
150 DPI1800 x 2700 px2700 x 1800 px
300 DPI3600 x 5400 px5400 x 3600 px
600 DPI7200 x 10800 px10800 x 7200 px

SizeKit

Formula

SizeKit uses a transparent rounding rule.

pixels = round((millimeters / 25.4) x DPI). Inches = millimeters / 25.4.

SizeKit

FAQ

Quick answers for this paper size.

What is 12 x 18 Photo size in inches?

12 x 18 Photo is 12 x 18 in when rounded to two decimals.

What is 12 x 18 Photo at 300 DPI?

12 x 18 Photo at 300 DPI is 3600 x 5400 px.

Can I switch to landscape?

Yes. Use the bottom calculator and choose landscape to swap width and height.

SizeKit

Related sizes

Compare nearby sizes before choosing a layout.