Typography Unit Converter

What Is a Typography Unit Converter?

A typography converter translates type and layout measurements between units — pixels to points, points to picas, ems to pixels. Typography inherits units from centuries of print (points and picas) and adds the screen era's pixels and the relative em. The point is the anchor: in modern desktop publishing and CSS, one point is exactly 1/72 of an inch, and 12 points make one pica.

This converter routes through the point using the standard digital definitions. At the common 96 PPI screen resolution, one point equals 1.333 pixels (16 px = 12 pt), which is why CSS treats 1pt as 1/72 inch and 1px as 1/96 inch. The em is relative — it equals the current font size — so its pixel value depends on context, which the tool makes explicit.

This is one category of the full Unit Converter — pair it with our percentage calculator or scientific calculator for related everyday maths.

Core Typography Conversion Factors

Based on the digital point (1/72 inch) and a 96 PPI pixel reference.

How to Use the Typography Converter

1. 1

   Enter the type measurement

   Type the size you want to convert — a font size, a margin, a line measure.

2. 2

   Choose the 'from' unit

   Pick pixels, points, picas, ems, or millimetres as your starting unit.

3. 3

   Choose the 'to' unit

   Select the target unit, or swap the two to reverse direction.

4. 4

   Read every unit at once

   The all-units table shows the measurement in px, pt, pica, and mm together for layout work.

Best Practices for Typography Conversion

• ✓Anchor on 1 pt = 1/72 inch. The modern digital point is exactly 1/72 inch. Older printers' points (~1/72.27 inch) differ slightly; use the DTP point for screen and CSS work.
• ✓Specify the PPI for pixels. Pixels only map to physical size at a stated resolution. CSS uses 96 PPI (1 pt = 1.333 px); high-DPI screens scale by the device pixel ratio.
• ✓Treat ems as relative. An em equals the current font size, so its pixel value changes with context. State the base size when converting ems to pixels.
• ✓Use points for print, pixels for screen. Print specs use points and picas; screen and CSS use pixels (and ems/rems). Convert at the boundary between the two media.
• ✓Round to whole pixels for screens. Sub-pixel type sizes can render blurry. Convert, then round to a whole or half pixel for crisp on-screen text.

Why Typography Conversion Matters

Typography straddles two eras and two media: print, with its points and picas inherited from metal type, and screens, with pixels and the relative em of responsive design. Designers move between them constantly — proofing a web layout for print, matching a CSS size to a style guide in points, or sizing signage in millimetres — and a unit slip yields type that's the wrong size or renders blurry.

Because the point is exactly 1/72 inch and pixels map to physical size only at a stated resolution, getting these relationships right is foundational to consistent, crisp type across web, print, and signage. A converter that routes through the point and exposes px, pica, em, and mm together keeps designers fluent across every typographic convention.