Enter the depth and the water density into the calculator to determine the underwater pressure. This calculator uses the standard formula for calculating pressure due to the weight of water above a certain depth.

Underwater Pressure Formula

The following formula is used to calculate the underwater pressure:

P = ρ * g * h

Variables:

  • P is the pressure (Pascals)
  • ρ is the water density (kg/m³)
  • g is the acceleration due to gravity (9.81 m/s²)
  • h is the depth (meters)

To calculate the underwater pressure, multiply the water density by the acceleration due to gravity and then by the depth.

What is Underwater Pressure?

Underwater pressure is the force per unit area exerted by water on any surface submerged in it. This pressure increases with depth due to the weight of the water above the point of measurement. It is a crucial factor in various fields such as marine biology, diving, and engineering.

How to Calculate Underwater Pressure?

The following steps outline how to calculate the Underwater Pressure:


  1. First, determine the water density (ρ) in kilograms per cubic meter (kg/m³).
  2. Next, determine the depth (h) in meters.
  3. Use the formula P = ρ * g * h, where g is the acceleration due to gravity (9.81 m/s²).
  4. Finally, calculate the underwater pressure (P) in Pascals.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Water density (ρ) = 1000 kg/m³

Depth (h) = 10 meters