Pressure
Force per area.
Fluid mechanics · Hydraulics
Pressure, force and area
Choose the unknown quantity. The relation F = P·A is applied in coherent SI units.
Created v1.0
By Thibaut Grzelak, Mechanical Analysis Engineer
02
Results
Force
Theoretical force.
Effective area
Required area.
Relation and numerical substitution
F = p · A—
Uniform pressure. Static operation. Friction and back pressure ignored.
01Formulas and symbols
Formulas used
F
p · ATheoretical forcep
F / APressureA
F / pEffective area02Assumptions and limits
Scope of validity
- Uniform pressure.
- Static operation.
- Friction and back pressure ignored.
03Validation example
Reference numerical case
- p = 100 bar and A = 10 cm².
- F = 10 kN.
04References
Technical references
- OpenStax — Pascal’s principle and hydraulics.
- BIPM — SI units; 1 Pa = 1 N/m².