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Pressure Calculator

Pressure from force and area (P = F/A) or fluid depth (P = ρgh), in Pa, bar, psi and atm.

Enter values

Results update as you type.

Result

Pressure

25,000 Pa

Kilopascals
25
Bar
0.25
PSI
3.6259
Atmospheres
0.24673

About the Pressure Calculator

Pressure from force and area (P = F/A) or fluid depth (P = ρgh), in Pa, bar, psi and atm.

Also known as: pressure formula, p = f/a, fluid pressure, hydrostatic pressure, water pressure.

How to use this calculator

  1. Enter calculate from and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

P = F / A · P = ρgh

Worked example

Using the values pre-filled in the calculator above:

  • Calculate from: Force and area
  • Force = 500 N
  • Area = 0.02 m²

the calculator returns:

  • Pressure: 25,000 Pa
  • Kilopascals: 25
  • Bar: 0.25
  • PSI: 3.6259