Convert millimetres to css pixels

1 mm = 3.77952755906 px — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

3.779 527 559 06px
≈ Rounded to 12 s.f. 1 mm ≈ 3.779 527 559 06 px
As a fraction: 480/127
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1 mm = 3.77952755906 px
Show this value in all 8 typography length units
  • Metres m 0.001
  • Millimetres mm 1
  • Inchs in 0.039 370 078 740 2
  • CSS pixels px 3.779 527 559 06
  • PostScript points pt 2.834 645 669 29
  • Picas pc 0.236 220 472 441
  • Quarter millimetres Q 4
  • Twips twip 56.692 913 385 8

Every row is Millimetre (mm) converted through the meter, in exact rational arithmetic.

How to convert millimetres to css pixels

Multiply the number of millimetres by 3.77952755906 to get css pixels.

CSS pixel: The CSS reference conversion is exactly 96 px per inch; a physical screen pixel can differ.

Millimetre to CSS pixel conversion table

Millimetres (mm) CSS pixels (px)
1 mm 3.779 527 6
2 mm 7.559 055 1
3 mm 11.338 583
5 mm 18.897 638
10 mm 37.795 276
20 mm 75.590 551
25 mm 94.488 189
50 mm 188.976 38
100 mm 377.952 76
250 mm 944.881 89
500 mm 1889.7638
1000 mm 3779.5276

CSS pixel to Millimetre conversion table

CSS pixels (px) Millimetres (mm)
1 px 0.264 583 33
2 px 0.529 166 67
3 px 0.793 75
5 px 1.322 916 7
10 px 2.645 833 3
20 px 5.291 666 7
25 px 6.614 583 3
50 px 13.229 167
100 px 26.458 333
250 px 66.145 833
500 px 132.291 67
1000 px 264.583 33

Frequently asked

How many css pixels are in a millimetre?

One millimetre equals 3.779527559 css pixels (mm → px). That figure is exact, not rounded.

How do you convert millimetres to css pixels?

Multiply the number of millimetres by 3.77952755906 to get css pixels.

What is 1 px in millimetres?

One css pixel is 0.2645833333 millimetres.

What is 10 mm in px?

10 mm = 37.795 276 px.

What exactly is a css pixel?

The CSS reference conversion is exactly 96 px per inch; a physical screen pixel can differ.

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