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Typography converter

Points, picas, ems and pixels. 6 units, converted from one table of exact factors.

1 point in every other typography unit

Computed by the same engine that runs the converter above, so these can never drift apart from it.

FromEqualsUnit
1 point0.083333333pica (pc)
1 point0.013888889inch (in)
1 point0.35277778millimeter (mm)
1 point1.3333333pixel (96 dpi) (px)
1 point0.083333333em (12 pt) (em)

What each unit actually is

Most converters give you a number and stop. Where a figure is exact by definition we say so, and where it is an average or shifts with conditions we say that too — that is usually the thing you needed to know.

UnitSymbolWhat it actually is
pointptA 72nd of an inch in modern desktop publishing. Older typographic points were slightly different.
picapcTwelve points.
inchinExact, given the modern point.
millimetermm
pixel (96 dpi)pxOnly true at 96 dpi, which is the CSS convention rather than a property of any screen.
em (12 pt)emAn em is the current font size, so this is only right when the type is 12 pt.

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