Point / Pixel / mm Converter

Convert typography measurements between points, pixels, millimetres, centimetres, inches, and picas with selectable DPI assumptions.

Design

Point, pixel, and mm converter

Convert between print and screen units using a selectable DPI assumption for common design and print contexts.

Common contexts

Examples

Result

1 in

At 96 DPI, 96 px equals 1 in and the rest of the unit sheet below.

Source unit
px
DPI assumption
96 DPI

Print

Points (pt) 72
Picas (pc) 6
Inches (in) 1

Screen

Pixels (px) 96

Metric

Millimeters (mm) 25.4
Centimeters (cm) 2.54

How DPI changes pixels

Higher DPI makes the same pixel count map to a smaller physical size. Lower DPI stretches the same pixels across more inches for screen-to-print planning.

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Typography Units

Point / pixel / mm converter: print, screen, and metric type measurements explained

A point / pixel / mm converter helps you move the same measurement between print-first units such as points and picas, screen-first units such as pixels, and metric dimensions such as millimetres and centimetres. That is useful when a layout brief, design file, printer spec, and CSS handoff all describe size in different ways.

How the unit families connect

Points and picas come from print typography, while pixels are used in digital interfaces and raster exports. Millimetres, centimetres, and inches describe physical size directly. A converter works by translating the source value through one shared physical basis and then deriving the equivalent values in every supported unit.

The practical catch is DPI. A pixel is not a fixed physical size until you decide how many pixels fit into one inch. That is why the same pixel value means something different at 72 DPI, 96 DPI, 150 DPI, or 300 DPI.

1 in = 72 pt = 6 pc

Classic print relationship between inches, points, and picas.

pixels = inches × DPI

Converts a physical inch measurement into a pixel count at the chosen density.

1 in = 25.4 mm = 2.54 cm

Metric conversion used to bridge print and physical measurements.

Why DPI assumptions matter

At 96 DPI, one inch equals 96 pixels, which is a common CSS reference. At 300 DPI, that same inch equals 300 pixels because the output is much denser. This is why screen measurements and print measurements can disagree even when the underlying design looks similar.

If you are checking typography or spacing for both interface and print workflows, the safest approach is to keep the physical measurement constant and change the DPI assumption deliberately rather than treating pixels as universal.

Where this converter is most useful

Use it when you need to compare a typographic measurement from a print brief with a screen mockup, or when a design system uses pixels while a production note uses points or millimetres. It is also useful for packaging, editorial design, signage proofs, and any handoff that mixes print and digital language.

The result sheet is best treated as a translation aid, not as a substitute for checking the final document settings in the software that will produce the printed output.

Frequently asked questions

Why does the pixel value change when I change DPI?

Because pixels describe density-dependent output. A higher DPI packs more pixels into the same inch, so the pixel count needed for a fixed physical size rises as DPI increases.

 What is the difference between points and picas?

A point is a smaller print unit, while a pica is larger. One pica equals 12 points, and six picas equal one inch.

 Should I use 72 DPI or 96 DPI for screen work?

That depends on the reference you are matching. Older digital workflows often mention 72 DPI, while CSS and many modern interface references use 96 DPI as the practical baseline. The important part is to keep the assumption explicit.

 Does this converter decide my final print quality?

No. It translates measurements between unit systems. Final print quality still depends on the actual export settings, viewing distance, printer process, and document setup used downstream.

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