📏 pt / mm / inch Converter
Easily convert the units most used in print and design.
Note: pt refers to the height of the text, not its weight (boldness).
This tool has been used … times.
Decimal places:
Resolution (DPI):
DPI = dots per inch. Screen and print use different standards, so choose the one that matches your use case.
72 dpi
—
px
96 dpi
—
px
300 dpi
—
px
📐 Presets
Font size
Paper size
📚 History
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ℹ️ Formulas & How to Use
Enter a number and the other units are converted automatically. Your history is saved in your browser so you can refer back to it later.
pt → mm: pt × 0.352778
pt → inch: pt × 0.0138889
mm → pt: mm × 2.834645
mm → inch: mm × 0.0393701
inch → pt: inch × 72
inch → mm: inch × 25.4
inch → px: inch × DPI
FAQ
- What is pt, and how do I convert it to mm?
- pt (point) is a unit mainly used for font sizes and printing; 1pt is about 0.353mm. Enter a value in the pt field above and it is automatically converted to mm, inch, and px.
- Can I convert paper sizes like A4 or a business card to pt / px?
- Yes. Pick a dimension such as A4, A3, B5, or a business card from the “Presets”, and it converts from mm to pt, inch, and px all at once.
- Which DPI should I choose when converting to px?
- For on-screen use, 72dpi (Web) or 96dpi (Windows); for printing, 300dpi is the usual target. Switching DPI changes the px value even for the same length.
- What are the formulas for points, millimeters, and inches?
- The main formulas are pt→mm: ×0.352778, mm→pt: ×2.834645, inch→mm: ×25.4, inch→pt: ×72. See “Formulas & How to Use” above for details.