Convert one torr to millibars

Explanation

To convert one torr to millibars all we need is to know the conversion factor and we are done. Luckily, we can compute that factor using the units' definitions below.

We find that one torr is approximately equal to 1.3332 millibars.

Formula

1 Torr ≈ 1.3332 mbar

torrTorr

dimension	pressure
symbol	Torr

The torr (Torr) a deprecated unit of pressure.

Definition of the torr

One torr is equal to ¹⁰¹³²⁵⁄₇₆₀ pascals.

The International System of Units 1^st edition p. 16

Equivalences

One torr is equivalent to:

History

The torr and millimeter of mercury were once exactly equivalent before their respective definitions diverged when the torr was redefined as 1/760 of the standard atmosphere. The two units are still very similar, one torr behing approximately equal to 0.999999858 millimeter of mercury.

The unit is named after Evangelista Torricelli, an Italian physicist who discovered the principle of the barometer.

Other torr units

millitorr	mTorr	0.001
torr	Torr	1
kilotorr	kTorr	1000
megatorr	MTorr	1 000 000

millibarsmbar

dimension	pressure
symbol	mbar

The millibar (mbar) is a metric unit of pressure not part of the SI.

Definition of the millibar

One millibar is equal to 0.001 bars.

Equivalences

One millibar is equivalent to:

Some Facts

The atmospheric pressure at the surface of Mars varies between 4 and 8.7 millibars depending on the season. So at its maximum, the atmospheric pressure on Mars is less than one hundredth the one on Earth at sea level.

Bar units

millibar	mbar	0.001
centibar	cbar	0.01
decibar	dbar	0.1
bar	bar	1
decabar	dabar	10
hectobar	hbar	100
kilobar	kbar	1000
megabar	Mbar	1 000 000