4 × 4 photo size: dimensions, pixels, and print planning

A 4 × 4 inch square print measures 101.6 × 101.6 mm. It is useful for a small square composition or a repeated grid, but most rectangular source images need a deliberate crop to fill it.

Dimensions4 × 4 in
Aspect ratio1:1
Try this size with your photo
4 × 4 in

Explore a pixel density

Change the PPI to calculate the pixels for this physical size. This does not add pixels to a photo.

1,200 × 1,200 pixels

Choose the size for the job

Start by looking for the subject, not the centre of the file. A square crop may work well when a face or object can occupy a compact region. It can remove context from a wide group or a landscape, so check both sides before exporting.

MeasurementValue
Inches4 × 4
Centimetres10.16 × 10.16
Millimetres101.6 × 101.6
Short-edge-to-long-edge ratio1:1

Pixel examples

These examples multiply each edge in inches by the stated PPI. They describe pixel counts for the chosen size, not a universal pass or fail rule for appearance. Use the retained pixels after cropping when checking an existing photo.

Example PPIPixels
150600 × 600
240960 × 960
3001,200 × 1,200

A worked example

A 3000 × 2000 landscape image cropped to its largest square retains 2000 × 2000 pixels. At 4 × 4 inches, that gives 500 PPI and removes one-third of the original area. Keep the whole photo instead and its picture area becomes 4 × 2⅔ inches, with two-thirds-inch borders above and below.

Before you print

Four 4-inch squares do not fit across the 8.5-inch width of Letter; only two do, before gaps and margins. Use the paper layout tool to calculate the actual grid rather than multiplying the number of copies by an assumed paper capacity.

Sources for this page