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CSS pixel to Centimetre

Exact answer: 1 px = 0.026458333333 cm (exact defined factor)

CSS pixel and Centimetre 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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From38 px
Result1.005417 cm
Factor1 px = 0.026458333333 cm
Source basisNIST Guide to SI Appendix B · W3C CSS Values and Units

Examples

0138 px = 1.005417 cm

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 px = 0.75 pt. Then the value is converted through the base unit pt into Centimetre.

Table

CSS pixel to Centimetre
CSS pixelCentimetre
381.005417
962.54
1503.96875
3007.9375
60015.875
1,20031.75

Formula

1 px = 0.75 pt. Then the value is converted through the base unit pt into Centimetre.

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 CSS pixel to Centimetre?

1 px = 0.026458333333 cm

Which formula does CSS pixel to Centimetre use?

1 px = 0.75 pt. Then the value is converted through the base unit pt into Centimetre.

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.