Millimeters to Pixels Converter
Quick answer: To convert millimeters to pixels, multiply by 3.779528. For example, 10 mm is 37.79528 px. One millimeter equals 3.779528 px.
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Use the Millimeters to Pixels Converter
Millimeters to Pixels formula and what each symbol means
px = mm × 3.779528
| Symbol | Meaning |
|---|---|
| mm | Millimeter |
| px | Pixel |
Millimeters to Pixels examples
1 mm
1 mm × 3.779528 = 3.779528 px.
10 mm
10 mm × 3.779528 = 37.79528 px.
100 mm
100 mm × 3.779528 = 377.9528 px.
Millimeters compared with Pixels
One mm is 3.78 times as large as one px, so your number gets bigger when you convert millimeters to pixels and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About millimeters and pixels
Millimeter (mm): One thousandth of a metre. Pixel (px): The CSS pixel, exactly 1/96 inch.
How to calculate Millimeters to Pixels step by step
- Enter the value in mm (the starting unit).
- Multiply by 3.779528, because 1 mm = 3.779528 px.
- The product is the value in px. To go back, divide by 3.779528 or multiply by 0.2645833.
Popular typography conversions
How to read your Millimeters to Pixels result
Quick estimate: multiply by about 3.8 to get pixels from millimeters; this is within 0.6% of the exact factor. So 1 px is 0.75 pt and 1 pt is 1.3333 px.
| MILLIMETERS | PIXELS |
|---|---|
| 1 | 3.779528 |
| 2 | 7.559055 |
| 5 | 18.89764 |
| 10 | 37.79528 |
| 20 | 75.59055 |
| 50 | 188.9764 |
| 100 | 377.9528 |
| 1,000 | 3,779.528 |
Pixels to Millimeters: quick table
| PIXELS | MILLIMETERS |
|---|---|
| 1 | 0.2645833 |
| 5 | 1.322917 |
| 10 | 2.645833 |
| 25 | 6.614583 |
| 50 | 13.22917 |
| 100 | 26.45833 |
| 250 | 66.14583 |
| 500 | 132.2917 |
Common mistakes when calculating Millimeters to Pixels
- Assuming 1 pt equals 1 px: 1 pt is 1.3333 px.
- Dividing when you should multiply: from mm to px multiply by 3.779528; from px to mm divide by 3.779528.
Millimeters to Pixels FAQ
How many px are in 1 mm?
1 mm equals 3.779528 px.
How many mm are in 1 px?
1 px equals 0.2645833 mm.
Is 1 mm = 3.779528 px an exact conversion?
The factor is shown rounded to 7 significant figures (3.779528). The calculator above uses more digits.
What is a pixel (px)?
The CSS pixel, exactly 1/96 inch.
How can I estimate millimeters to pixels in my head?
Quick estimate: multiply by about 3.8 to get pixels from millimeters; this is within 0.6% of the exact factor.
What is 150 mm in pixels?
150 mm = 566.9291 px (since 150 × 3.779528).
What is 0.5 mm in pixels?
0.5 mm = 1.889764 px (since 0.5 × 3.779528).
What is 25 mm in pixels?
25 mm = 94.48819 px (since 25 × 3.779528).
How many decimals should I keep when converting mm to px?
Match the precision of your original measurement. For example, 37.79528 px rounds to 37.8 px at 3 significant figures; keep more digits only for engineering or scientific work.
More in Typography converters
- Picas to Inches Converter
- Millimeters to Centimeters Converter
- Picas to Millimeters Converter
- Inches to Points Converter
- Picas to Pixels Converter
- Inches to Pixels Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: W3C CSS Values and Units: absolute lengths (1in = 96px = 72pt = 6pc)