Skip to content
Science Calculators

Fluid Pressure at Depth Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
kg/m³
m/s²
m
Verified formula Private

Pressure

98,100.00

In kilopascals
98.10

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Fluid Pressure at Depth Calculator

The Fluid Pressure at Depth Calculator works out your pressure, along with 1 related figure in an instant. Enter fluid density, gravity and depth and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the fluid density.
  2. Enter the gravity.
  3. Enter the depth.
  4. Read off your pressure, together with in kilopascals — the calculator updates automatically, with no button to press.

Formula

The Fluid Pressure at Depth Calculator uses the formula:

Pressure = Fluid density × Gravity × Depth

Worked example

For example, with fluid density of 1,000 kg/m³, gravity of 9.81 m/s² and depth of 10 m, the pressure is 98,100.00.

Inputs used
Fluid density 1,000 kg/m³
Gravity 9.81 m/s²
Depth 10 m
Results
Pressure 98,100.00
In kilopascals 98.10

Results are estimates for educational use, not professional advice.

Key terms explained

Density
Mass per unit volume, calculated as mass ÷ volume.

Frequently asked questions

Multiply density, gravity and depth: P = ρgh. Water 10 m deep gives about 98,100 Pa, or 98 kPa.

No. Hydrostatic pressure depends only on depth, density and gravity, not the container's shape.

This is the pressure from the fluid alone. Add atmospheric pressure for the absolute pressure.

Deeper points support the weight of all the fluid above them, so pressure increases linearly with depth.

Enter the fluid density. Enter the gravity. Enter the depth. Read off your pressure, together with in kilopascals — the calculator updates automatically, with no button to press.

Related calculators