TechTools

Typography Converter

em and rem use the browser default 16 px base font size. Actual values may differ if a custom base size is set.

From
To
Sig. figures:

Pixel (CSS, 96 dpi)

px

16

Em (16 px base)

em

1(input)

Rem (16 px root)

rem

1

Point (DTP/CSS, 1/72 in)

pt

12

Pica (12 pt)

pc

1

Inch

in

0.166667

Centimeter

cm

0.423333

Millimeter

mm

4.23333

Twip (1/20 pt, Word)

twip

240

Didot Point (European)

dd

11.2569

Cicero (12 Didot)

cc

0.938077

Hover any row to copy the value or use it as the new input.

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Convert typographic measurements across 11 units: Screen/Web (px, em, rem), Print/Layout (pt, pc, in, cm, mm, twip), and Traditional European (Didot point dd, Cicero cc). Base: 1 DTP point = 1/72 inch. Key: 1 in = 72 pt = 6 pc = 96 px (CSS); 1 em = 16 px = 12 pt at browser default; 1 px = 0.75 pt; 1 twip = 1/20 pt (Word); 1 Didot ≈ 1.066 pt (European); 1 Cicero = 12 Didot ≈ 12.798 pt. Note: em/rem use 16 px browser default. Quick-reference: body text (10–12 pt), 72 pt = 1 inch. 100% browser-based.

How to Use

  1. 1Type a typographic measurement in the input field
  2. 2Select your starting unit (pt, px, em, mm, etc.) from the From dropdown
  3. 3Select your target unit in the To dropdown
  4. 4All 11 conversions appear across Screen/Web, Print/Layout, and Traditional European groups
  5. 5Hover any row to copy or use as input
  6. 6Click ⇄ to swap From/To units
  7. 7Note: em and rem conversions use the browser default 16 px base font size
  8. 8Open the quick-reference table for body text sizes, inch/point anchor, and Didot comparisons

Features

  • 11 units: px, em, rem + pt, pc, in, cm, mm, twip + Didot point, Cicero
  • Screen/Web, Print/Layout, and Traditional European groups
  • All 11 conversions shown simultaneously
  • Base: 1 DTP point = 1/72 inch (PostScript/CSS standard)
  • em/rem use 16 px browser default - noted in the UI
  • Adjustable sig. figures (3–12)
  • Quick-reference: body text sizes, pt↔px↔em anchors, European Didot system
  • Twip support for Microsoft Word / RTF document workflows
  • 100% browser-based - no server

Frequently Asked Questions

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