Conversion Form

PT
MM

About the Unit

Point (pt): The point (pt) is a traditional typographic unit commonly used in print, and one of the standard measurement units in printed documents. 1pt is equal to 1/72 of an inch. Although pt is a physical unit and is not very common in digital design, it still has its use, especially when working with documents intended for print or when consistency is needed between digital and printed design. In CSS, using pt to define font size or other layout elements can be useful in print contexts, but its accuracy on digital screens may be affected by the screen's resolution. To ensure typography looks the same across devices, using relative units like em or rem may be more appropriate, but pt still has its place in document design, such as PDFs or other printed media formats.

Pro Tip: pt → mm

1pt = 0.35278mm. Use mm for precision in print designs.

Quick Reference: Unit Conversion by Tens

PTMM
10pt3.527769mm
20pt7.055538mm
30pt10.583307mm
40pt14.111076mm
50pt17.638845mm
60pt21.166614mm
70pt24.694383mm
80pt28.222152mm
90pt31.749921mm
100pt35.27769mm
110pt38.805459mm
120pt42.333227mm
130pt45.860996mm
140pt49.388765mm
150pt52.916534mm
160pt56.444303mm
170pt59.972072mm
180pt63.499841mm
190pt67.02761mm
200pt70.555379mm
210pt74.083148mm
220pt77.610917mm
230pt81.138686mm
240pt84.666455mm
250pt88.194224mm

Live Unit Preview

See how different CSS units affect the size of the box below:

10px

10rem

10em

10%

10vw

10vh

Common Mistake

Be cautious when mixing pt and mm without testing on different screen sizes.

Real Code Example

/* Mobile-first card with pt → mm */
.card {
  padding: 0pt;     /* undefinedmm */
  font-size: 1.5rem;
  width: min(90vw, 40ch);
}
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