lag RU RO FR EN
 
 
 
 

MENU: home page

unit of measure: the base unit | the supplementary unit | the derived unit

geometry: the area of a flat figure | the area of a solid | the volume of the solid


unit

Pressure

Stress

Definition

The pressure or stress is the physical measure, which defines the force of action on a surface element in its normal direction.

1 pascal is the pressure (mechanical pressure) caused by the force of 1 newton prorated on a normal surface area of 1 metre square.

 

system of units:   SI;
statute:   derived unit (with a special name);
name the value:   P, p, mai rar H, h;
unit name:   pascal;
symbol unit:   Pa;
relationship of definition:   P = F/S;
dimension:   M L-1 T-2;
expression in other units:   bar, atm, kgf/cm²;

Online converter

For separation of number integers and decimals, use the symbol – point [.]

from:


in:

 

 

Units of measurement

namesymbol value in SI unit:
Pa
note
1 atmosphere, standartatm= 101 325 
1 atmosphere, technicalat= 98 066.5 
1 barbar= 104 
1 metre of mercury, conventionalmHg≈ 133 322.4(1)
1 metre of mercurymHg≈ 133 322(2)
1 metre of water, convetionalmH2O= 9 806.65(1)
1 metre of watermH2O≈ 9 806.38(3)
1 dune per square centimeterdyn/cm²= 0.1 
1 foot of mercury, convetionalftHg≈ 40 636.66(1)
1 foot of water, conventionalftH2O≈ 2 989.067(1)
1 foot of waterftH2O≈ 2 988.98(4)
1 gram-force per square centimetregf/cm²= 98.066 5 
1 inch of mercury, convetionalinHg≈ 3 386.389(1)
1 inch of mercuryinHg≈ 3 386.38(5)
1 inch of mercuryinHg≈ 3 376.85(6)
1 inch of water, conventionalinH2O≈ 249.088 9(1)
1 inch of waterinH2O≈ 249.082(4)
1 inch of waterinH2O≈ 248.84(6)
1 kilogram-force per square millimetrekgf/mm²= 9.806 65 × 106(7)
1 kilogram-force per square centimetrekgf/cm²= 98 066.5(7)
1 kilogram-force per square metrekgf/m²= 9.806 65(7)
1 kip per square inchkip/in²≈ 9 894 757.0 
1 newton per square metreN/m²= 1.0 
1 poundal per square foot ≈ 1.488 164 
1 pound-force per square inchlbf/in²≈ 6 894.757 
1 psilbf/in²≈ 6 894.757 
1 torTorr≈ 133.322 34 
1 pièzepz= 103 

Note:

(1) - conventional;

(2) - 0 °C;

(3) - 4 °C;

(4) - 39.2 °F;

(5) - 32 °F;

(6) - 60 °F;

(7) - sisteme MKfS;