Advanced Interactive Pressure Calculator
Theory & Formulas
Pressure (P) is defined as the force applied perpendicular to the surface of an object per unit area over which that force is distributed. It is a scalar quantity.
- The standard SI unit of pressure is the Pascal (Pa), which is equivalent to one Newton per square meter (N/m²).
- Other common units include pounds per square inch (psi), atmospheres (atm), and millimeters of mercury (mmHg). This calculator focuses on Pascals.
Common formulas for calculating pressure include:
- Pressure from Force and Area: This is the fundamental definition of pressure.
P = F / A
(Where P is pressure, F is the normal force applied, and A is the area over which the force is distributed.) - Pressure in a Fluid (Hydrostatic Pressure): This formula calculates the pressure exerted by a fluid at a certain depth due to gravity.
P = ρ × g × h
(Where P is pressure, ρ (rho) is the density of the fluid, g is the acceleration due to gravity, and h is the depth or height of the fluid column.)
How to Use:
- Select Formula: Choose the pressure calculation method from the "Select Pressure Calculation Method" dropdown.
- Enter Known Values: Input the required values for the selected formula in the fields that appear. Ensure you use standard SI units as indicated (e.g., Newtons for Force, m² for Area, kg/m³ for Density, m for Height/Depth).
- Calculate: Click the "Calculate Pressure" button.
- View Result: The calculated Pressure (in Pascals), along with the formula used, will be displayed.
- Copy & Log: Use the "Copy Result" button and review the Action Log for input details and calculation steps.
For "Pressure in a Fluid", 'g' (acceleration due to gravity) defaults to 9.81 m/s² if not entered.
Calculation Result:
Calculated Pressure (P):
-
Action Log:
Calculator initialized. Select a calculation method to begin.