Contents

- Piston cylinder pressure & diameter to force calculator
- Force & area to pressure calculator
- Pressure & area to force calculator
- Convert force to different units
- Convert pressure to different units
- Calculate circle area from diameter
- Calculate circle diameter from area

## User Guide

This tool will calculate the pneumatic/hydraulic pressure generated by a piston cylinder for a specified force and piston-cylinder bore diameter.

### Formula

The formula used by this calculator to determine the piston cylinder pressure from force and diameter is:

r = ø/2

A = π·r^{2} = π·(ø/2)^{2}

P = F/A

P = F/π·(ø/2)^{2}

#### Symbols

- P = Pressure
- F = Force
- π = Pi = 3.14159…
- r = Circle radius
- ø = Circle diameter
- A = Circle area

### Applied Force

Enter the reading in any units for the applied force.

### Piston / Cylinder Bore Diameter

Enter the diameter of the cylinder bore or the piston, and for better precision use the average of the two if possible.

### Generated Pressure

This is the pressure generated by a piston/cylinder of a specified diameter and applied force, and can be displayed in a choice of different pressure measurement units.

## Applications

- Hydraulic cylinder
- Pneumatic cylinder
- Hydraulic press

## Questions & Answers

### 150 tonne & 280mm dia press

*I have an application to read force in tonne (1000kg) on a 150 tonne hydraulic press with a press ram piston diameter of 280mm, and want to know what range of pressure gauge I will need to use to monitor the hydraulic pressure?*

Using the above calculator a hydraulic press with a ram piston diameter of 280mm (area of 61575.2 mm²) would require a pressure of 238.894 bar to produce a force of 150 metric tonnes.