Unit of Measure Conversions

Pressure Conversions

INPUT value:

OUTPUT values

INPUT unit:	pascal	Pa
	kilogramforce/sq.metre	kgf/m²
	torr	torr
	foot of water (39.2°F)	ft-H₂O
	inch of mercury (32°F)	in-Hg
	poundforce/sq.inch	psi
	kilogramforce/sq.centimetre	kgf/cm²
	bar	bar
	atmosphere	atm

Messages:

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Additional Units and Information

Name	Symbol	Value	Description/Notes
dyne/sq.centimetre	dyn/cm²	1 barye	Equivalent to 1/10 pascal
kip/sq.inch	ksi	6.894757 x 10⁶ pascals	1 kip = 1,000 poundsforce
millibar	mbar	1000 barye; 100 pascals	Equivalent to 1/1000 bar
millimetre mercury	mm-Hg	1 torr
newton/sq.metre	N/m²	1 pascal	Equivalent to 10 baryes
pièze	pz	1,000 pascals
poundal/sq.foot	pdl/ft²	1.488164 pascals
poundforce/sq.foot	lbf/ft²	47.88026 pascals
	psi	14.6959 pounds/sq.inch	Atmospheric pressure at sea level

Useful Approximations

Approximation	% Accuracy
The pressure on an object in water increases by ½ psi per foot of depth	86.7
1 poundforce/sq.inch ≈ 2 inches mercury	98.2
1 poundforce/sq.inch ≈ 50 torr	96.7
1 bar ≈ 750 torr	99.9
1 atmosphere ≈ 1 bar	98.7
1 atmosphere ≈ 1 kilogramforce/sq.centimetre	96.9