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Centimetre to CSS pixel

Exact answer: 1 cm = 37.795275590551 px (exact defined factor)

Centimetre and CSS pixel describe the same quantity from the Typography family but come from different systems of units. The factor is defined exactly. Typography links point, pixel and millimetre across print, web and layout.

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From1 cm
Result37.795276 px
Factor1 cm = 37.795275590551 px
Source basisNIST Guide to SI Appendix B · W3C CSS Values and Units

Examples

011 cm = 37.795276 px

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

px depends on output context. UnitCloud uses the CSS reference of 96 px per inch.

03Base unit: pt

1 cm = 28.3464566929 pt. Then the value is converted through the base unit pt into CSS pixel.

Table

Centimetre to CSS pixel
CentimetreCSS pixel
137.795276
2.5496
5188.976378
10377.952756
21793.700787
29.71,122.519685

Formula

1 cm = 28.3464566929 pt. Then the value is converted through the base unit pt into CSS pixel.

Sources

NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.W3C CSS Values and UnitsCSS reference units for px, pt and in contexts.

Related conversions

Point to CSS pixelpt → pxTypographyCSS pixel to Pointpx → ptTypographyCSS pixel to Millimetrepx → mmTypographyMillimetre to CSS pixelmm → pxTypography

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Typography. Source basis: NIST Guide to SI Appendix B · W3C CSS Values and Units.

Common questions

What is the factor for Centimetre to CSS pixel?

1 cm = 37.795275590551 px

Which formula does Centimetre to CSS pixel use?

1 cm = 28.346456692913 pt. Then the value is converted through the base unit pt into CSS pixel.

What is the most common mistake?

px depends on output context. UnitCloud uses the CSS reference of 96 px per inch.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.