ucUnitCloudInternational unit matrix

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Point to Millimetre

Exact answer: 1 pt = 0.352777777778 mm (exact defined factor)

Point and Millimetre 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 pt
Result0.352778 mm
Factor1 pt = 0.352777777778 mm
Source basisNIST Guide to SI Appendix B · W3C CSS Values and Units

Examples

011 pt = 0.352778 mm

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 pt = 0.352777777778 mm. Point is the base unit of the family, so the value is converted directly.

Table

Point to Millimetre
PointMillimetre
10.352778
20.705556
62.116667
124.233333
248.466667
7225.4

Formula

1 pt = 0.352777777778 mm. Point is the base unit of the family, so the value is converted directly.

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 → ptTypographyMillimetre to Pointmm → ptTypographyCSS pixel to Millimetrepx → mmTypography

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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 Point to Millimetre?

1 pt = 0.352777777778 mm

Which formula does Point to Millimetre use?

1 pt = 0.352777777778 mm. Point is the base unit of the family, so the value is converted directly.

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.