Pressure Calculator
Pressure from force and area, P = F/A.
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Introduction
Pressure Calculator — Pressure from force and area, P = F/A. Enter Force (N), Area (m²) to get an instant, accurate result.
Formula
Pressure is calculated as P = F / A, where F is the force applied perpendicular to a surface and A is the area over which the force is distributed.
Step-by-step
- Enter the Force (N).
- Enter the Area (m²).
- Click Calculate to see your result instantly.
Real-world example
Example: With Force (N) = 100, Area (m²) = 2, the Pressure Calculator gives Pressure Pa: 50.
Frequently Asked Questions
What units are used for pressure?
The SI unit of pressure is the pascal (Pa), equal to one newton per square meter (N/m²). Enter force in newtons and area in square meters to get pressure in pascals.
Why does a smaller area increase pressure?
Since pressure is inversely proportional to area, the same force concentrated over a smaller area produces higher pressure — this is why sharp knives cut more easily than dull ones.
How does this relate to fluid pressure?
This formula gives pressure from a solid force on a surface. For pressure exerted by a fluid due to depth, see the fluid pressure or hydrostatic pressure calculators, which use P = ρgh instead.
What inputs does the Pressure Calculator need?
You'll need to provide: Force (N), Area (m²). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Pressure Calculator?
The Pressure Calculator applies the formula exactly as calculated — Pressure is calculated as P = F / A, where F is the force applied perpendicular to a surface and A is the area over which the force is distributed. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Pressure Calculator free to use?
Yes, the Pressure Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Pressure Calculator
The Pressure Calculator uses a real, verifiable formula — Pressure is calculated as P = F / A, where F is the force applied perpendicular to a surface and A is the area over which the force is distributed. — so results are accurate every time, not an approximation.