Conversion Form

MM
PC

About the Unit

Millimeter (mm): The millimeter (mm) is a physical unit of measurement, 1/10th of a centimeter. Like cm, mm is commonly used in graphic design and printing, where precise physical measurements are needed. In CSS, mm is useful for defining width, height, and other dimensions of elements in layouts that will be printed or converted to other physical formats. Using mm is an effective way to ensure precise and consistent layout dimensions during the printing process. For digital designs, the mm unit may be less practical, as most web interfaces benefit more from relative units to ensure a more adaptive user experience. However, for technical documents or precision graphics, mm may be the best choice.

Pro Tip: mm → pc

1mm = 0.23622pc. Convert mm to pica for print typography.

Quick Reference: Unit Conversion by Tens

MMPC
10mm2.362205pc
20mm4.724409pc
30mm7.086614pc
40mm9.448819pc
50mm11.811024pc
60mm14.173228pc
70mm16.535433pc
80mm18.897638pc
90mm21.259843pc
100mm23.622047pc
110mm25.984252pc
120mm28.346457pc
130mm30.708661pc
140mm33.070866pc
150mm35.433071pc
160mm37.795276pc
170mm40.15748pc
180mm42.519685pc
190mm44.88189pc
200mm47.244094pc
210mm49.606299pc
220mm51.968504pc
230mm54.330709pc
240mm56.692913pc
250mm59.055118pc

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 mm and pc without testing on different screen sizes.

Real Code Example

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

  • Ctrl + C: Convert
  • Ctrl + I: Invert units
  • Esc: Reset values

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