Convert picas (US) to millimeters

Explanation

From this page you can convert picas (US) to millimeters (or P to mm) simply, by using the application above.

In case you are wondering, to convert from picas (US) to millimeters you need to multiply by 4.2175. This factor is calculated using the respective definitions of the two units you can find below.

Formula

1 P≈4.2175 mm

picas (US)P

dimension	length
system	U.S. customary units (USCS)
symbol	P

The US pica (P) is a unit of measure used in typography.

Definition of the pica

The US pica is defined as exactly 0.166044 inches.

Value in terms of the SI

One US pica is equivalent to 4.2175176 millimeters.

US Typography units

point	p
pica	P	12 points
inch	in	6.022500060225 picas

The American Point System

The American point system was defined in 1886 in order to unify the different picas used across the country. The pica of the MacKellar, Smiths, & Jordan Co. foundry of Philadelphia was chosen for the definition as it was considered the most established.

millimetersmm

dimension	length
system	International system of units (SI)
symbol	mm

The millimeter (mm) is a unit of length in the International System of Units.

In ascending order, the millimeter comes after the micrometer and before the centimeter.

Definition of the millimeter

One millimeter is equal to 0.001 meters.

Equivalences

One millimeter is equivalent to:

Some Facts

An acorn between 10 and 60 millimeters in length has the potential to become an oak tree tens of meters tall.
The largest species of praying mantises can measure up to 200 millimeters or roughly the length between the thumb and the middle finger of an adult.

Prefix

milli

10^-3

The prefix milli- comes from the Latin mille meaning a thousand. The associated multiplicative factor is 0.001 or 10^-3.

Metric length units

femtometer	fm	0.000 000 000 000 001
picometer	pm	0.000 000 000 001
nanometer	nm	0.000 000 001
micrometer	µm	0.000 001
millimeter	mm	0.001
centimeter	cm	0.01
decimeter	dm	0.1
meter	m	1
dekameter	dam	10
hectometer	hm	100
kilometer	km	1000
megameter	Mm	1 000 000
gigameter	Gm	1 000 000 000
terameter	Tm	1 000 000 000 000
petameter	Pm	1 000 000 000 000 000
exameter	Em	1 000 000 000 000 000 000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.