Calculate pressure from force and area. This pressure calculator gives results in PSI, pascals, kilopascals, bar, atmospheres, mmHg, and inches of water.
Force:
Enter the force being applied. You can use pounds-force, newtons, kilonewtons, or kilogram-force.
Area:
Enter the surface area the force is acting on. Smaller areas create higher pressure from the same force.
Pressure:
The calculator divides force by area and converts the result into common pressure units.
A pressure calculator helps estimate the amount of force applied over a specific area. It can be useful for physics, hydraulics, pneumatics, plumbing, mechanical projects, engineering estimates, water pressure examples, and general unit conversion.
This calculator is for general estimating and educational use. Real systems may require safety factors, rated equipment, and professional review.
The basic pressure formula is:
P = F ÷ A
Divide force by area. For example, 100 pounds-force spread over 10 square inches equals 10 PSI.
PSI means pounds per square inch. It measures how many pounds-force are applied over each square inch of area.
PSI is commonly used in U.S. pressure measurements, while pascals are the SI metric unit. One PSI is about 6,894.76 pascals.
Yes. When the same force is applied over a smaller area, pressure increases. When the same force is spread over a larger area, pressure decreases.