PT to MM Converter

Convert points (pt) to millimeters (mm) instantly with our free online tool. Essential for international designers, printers, and anyone working with metric typography measurements.

Conversion Result

Understanding PT to MM Conversion

Points (pt) and millimeters (mm) are both units of measurement used in design and printing, with millimeters being the standard metric unit for precise measurements.

What is a Point (pt)?

A point is a unit of measurement commonly used in typography and print design. The modern PostScript point is defined as exactly 1/72 of an inch (about 0.3528 mm). This standardization makes conversion between points and metric units straightforward.

What is a Millimeter (mm)?

A millimeter is a metric unit of length equal to one thousandth of a meter. It's the standard unit for precise measurements in most countries outside the United States and is widely used in engineering, manufacturing, and design.

How to Convert PT to MM

The conversion from points to millimeters is based on the standardized definition that 1 inch equals 25.4 millimeters and 72 points equal 1 inch:

Formula: millimeters = points × (25.4 / 72) ≈ points × 0.352777778

This means that to convert any point measurement to millimeters, you multiply the point value by approximately 0.3528.

Common Conversion Values

Points (pt) Millimeters (mm) Common Usage
6pt 2.12 mm Very small text
8pt 2.82 mm Footnote text
10pt 3.53 mm Small text
12pt 4.23 mm Standard body text
14pt 4.94 mm Subheadings
18pt 6.35 mm Headings
24pt 8.47 mm Large headings
36pt 12.7 mm Display text
72pt 25.4 mm Very large display text
144pt 50.8 mm Poster text

When to Use PT vs MM

Use points (pt) when:

Use millimeters (mm) when:

International Standards

While points are still widely used in typography, most countries outside the United States use metric measurements for all design and printing specifications. Understanding the conversion between points and millimeters is essential for:

Conversion Tips