What is the formula for pressure?

The fundamental formula for pressure is P = F / A, where P is pressure, F is force, and A is the area over which the force is distributed.

How do you calculate pressure in Pascals?

To find pressure in Pascals (Pa), divide the force in Newtons by the area in square meters (N/m²).

What is 1 atmosphere (atm) of pressure?

Standard atmospheric pressure at sea level is approximately 101,325 Pascals, or 101.325 kPa.

Why does pressure increase with depth in water?

As you go deeper, you have more water overhead. The weight of this water column increases the force acting on any given area, resulting in higher pressure.

Sistema Matemático Verificado

Pressure Calculator

Solve for Pressure (P), Force (F), or Area (A). Deep dive into Pascals, hydraulics, and fluid dynamics.

Última verificação matemática: Jan 2026

Pressure Parameters

Force (Newtons)

Area (m²)

Solved pressure

O que é Pressure Calculator?

Pressure (P) is defined as the force applied perpendicular to the surface of an object per unit area over which that force is distributed. In the simplest terms, it is how concentrated a force is.

The standard unit of pressure is the Pascal (Pa), which is equivalent to one Newton per square meter (N/m²).

Como Usar

The relationship between these three variables is linear and easy to remember using the formula P = F / A.

Force Up ↑

Pressure increases if area stays same.

Area Up ↑

Pressure decreases if force stays same.

Area Down ↓

Pressure increases (the 'knife effect').

Educação Financeira

Real World Examples

Stiletto Heels:

A person in stiletto heels exerts much higher pressure on the ground than an elephant, because the person's entire weight is concentrated on a tiny area.

Snowshoes:

By increasing the surface area (A) of your contact with the snow, the pressure (P) drops, allowing you to walk on top of the snow instead of sinking.

Atmospheric Pressure

Even though you can't feel it, the air above you has weight. At sea level, the atmosphere pushes down with a pressure of about 101,325 Pascals (or 14.7 pounds per square inch).

"Every square inch of your body is being pressed on by roughly 14.7 pounds of air. You don't get crushed because the internal pressure of your body counteracts it."

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Perguntas Frequentes

Perguntas comuns sobre esta calculadora

What is a Kilopascal (kPa)?

1 kPa is 1,000 Pascals. Since a single Pascal is very small pressure (about the weight of a sheet of paper on a table), kPa is more commonly used in engineering.

Are pressure and force the same?

No. Force is the total 'push', while pressure is how 'sharp' or concentrated that push is. 100N of force on a pinhead is extreme pressure; 100N on a mattress is barely noticeable.

How does depth affect pressure?

In fluids (like water), pressure increases with depth because the weight of the fluid above you is pushing down. For every 10 meters you go underwater, pressure increases by about 1 atmosphere.

What is Absolute vs Gauge pressure?

Gauge pressure is measured relative to atmospheric pressure (showing 0 at sea level). Absolute pressure includes the atmospheric pressure.