📏 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.
1pt = 0.353mm
1mm = 2.835pt
1inch = 25.4mm
1inch = 72pt
📊 pt / mm / inch Conversion Charts
Converted values for commonly used sizes (px is based on a 96dpi screen). Tap a heading to expand or collapse it.
pt
mm
inch
px (96dpi)
8pt
2.82mm
0.111inch
10.67px
9pt
3.18mm
0.125inch
12px
10pt
3.53mm
0.139inch
13.33px
10.5pt
3.70mm
0.146inch
14px
12pt
4.23mm
0.167inch
16px
14pt
4.94mm
0.194inch
18.67px
16pt
5.64mm
0.222inch
21.33px
18pt
6.35mm
0.250inch
24px
20pt
7.06mm
0.278inch
26.67px
24pt
8.47mm
0.333inch
32px
mm
pt
inch
px (96dpi)
1mm
2.83pt
0.039inch
3.78px
5mm
14.17pt
0.197inch
18.90px
10mm
28.35pt
0.394inch
37.80px
50mm
141.73pt
1.969inch
188.98px
55mm (card height)
155.91pt
2.165inch
207.87px
91mm (card width)
257.95pt
3.583inch
343.94px
100mm
283.46pt
3.937inch
377.95px
148mm (A5 width)
419.53pt
5.827inch
559.37px
210mm (A4 width)
595.28pt
8.268inch
793.70px
297mm (A4 height)
841.89pt
11.693inch
1122.52px
inch
mm
pt
px (96dpi)
0.25inch
6.35mm
18pt
24px
0.5inch
12.7mm
36pt
48px
1inch
25.4mm
72pt
96px
1.5inch
38.1mm
108pt
144px
2inch
50.8mm
144pt
192px
3inch
76.2mm
216pt
288px
4inch
101.6mm
288pt
384px
5inch
127mm
360pt
480px
10inch
254mm
720pt
960px
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
- How many mm is 1pt?
- 1pt is about 0.353mm. A point is defined as 1/72 of an inch (25.4mm), so 25.4 ÷ 72 = 0.352778mm. Going the other way, 1mm is about 2.835pt.
- How many mm is 12pt?
- 12pt is about 4.23mm (0.167 inch, or 16px at 96dpi). You can check other common sizes at a glance in the “pt → mm / inch / px” chart above.
- How many mm is 1 inch?
- 1 inch is exactly 25.4mm. This is an international definition rather than an approximation, so inches and millimeters always convert with ×25.4 and ÷25.4.
- How many pt is 1 inch?
- 1 inch is exactly 72pt (the definition of the DTP point). That means 72pt text is exactly 1 inch, or 25.4mm, tall.
- 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.