Pressure Calculator
Find the pressure exerted by a force acting over a given area.
N
m²
- 1
Force (F)
100 - 2
Area (A)
0.5 - 3
Pressure P = F ÷ A
100 ÷ 0.5 = 200One newton per square metre equals one pascal (Pa).
Formula
How this is calculated
Pressure (P) measures how concentrated a force is over the surface it pushes against. The calculator takes two inputs: force — the push applied perpendicular to the surface, entered in newtons (N) — and area — the size of the surface the force is spread across, entered in square metres (m²). It divides one by the other: P = F ÷ A. Because both inputs are in SI base units, the result comes out in pascals (Pa), where 1 Pa equals exactly 1 newton per square metre.
The relationship is inverse in area: holding the force fixed, halving the area doubles the pressure. That is why a force on a tiny area (a needle tip) produces enormous pressure while the same force on a wide area (a flat foot) produces very little. To make the result easier to interpret, it is also shown in kilopascals (Pa ÷ 1000), pounds per square inch (Pa ÷ 6894.757), and bar (Pa ÷ 100000).
The formula assumes the force acts uniformly and at right angles to a flat surface, so it gives an average pressure rather than accounting for uneven loading or a force applied at an angle. Area must be greater than zero — dividing by zero is undefined — and both inputs should be positive for a physically meaningful result.
Examples
| Input | Result |
|---|---|
| F = 100 N, A = 0.5 m² | P = 200 Pa |
About this calculator
Pressure is the amount of force applied perpendicular to a surface per unit area: P = F / A. With force in newtons and area in square metres, pressure is measured in pascals (Pa), where one pascal equals one newton per square metre.
Because pressure depends inversely on area, the same force concentrated on a smaller area produces much higher pressure — which is why a sharp knife cuts more easily than a blunt one. This calculator also converts the result into kilopascals, pounds per square inch (psi) and bar for engineering and everyday use.
Frequently asked questions
Pressure equals force divided by area: P = F / A. Newtons over square metres gives pascals.
Divide the pressure in pascals by 6894.757. For example, 6894.757 Pa equals exactly 1 psi.
For a fixed force, pressure is inversely proportional to area, so concentrating the force over a smaller area raises the pressure substantially.
Also known as
TG we-Calculate Editorial Team. (2026). Pressure Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/pressure-calculator
TG we-Calculate Editorial Team. "Pressure Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/pressure-calculator.
TG we-Calculate Editorial Team, "Pressure Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/pressure-calculator
@misc{wecalculate_pressure_calculator, title = {Pressure Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/pressure-calculator}}, year = {2026}, note = {TG we-Calculate} }
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