About the Hydraulic Press Calculator
Pascal's law: output force, pressure and piston travel for a hydraulic press or jack.
Also known as: pascal law calculator, hydraulic force, hydraulic jack, hydraulic pressure calculator.
How to use this calculator
- Enter input force, input piston diameter, output piston diameter, input stroke.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
F₂ = F₁ × A₂ / A₁ (pressure is equal throughout)
Worked example
Using the values pre-filled in the calculator above:
- Input force = 200 N
- Input piston diameter = 20 mm
- Output piston diameter = 200 mm
- Input stroke = 100 mm
the calculator returns:
- Output force: 20,000 N
- Force multiplication: 100 ×
- System pressure: 636,620 Pa
- Pressure (bar): 6.37