Pressure from Depth and Density Calculator

What is Pressure from Depth and Density?

Pressure at a given depth in a fluid is determined by the weight of the fluid column above that point. It is calculated using the formula:

• Pressure (P) = Density (ρ) × Gravitational acceleration (g) × Depth (h)

How to Calculate Pressure from Depth and Density

To calculate the pressure at a given depth in a fluid, use the following formula:

• Pressure (P) = ρ × g × h
• Where:
• ρ = Density of the fluid (kg/m³)
• g = Gravitational acceleration (9.81 m/s² on Earth)
• h = Depth of the fluid (m)

Example Calculation

If you want to calculate the pressure at a depth of 10 meters in seawater (with a density of 1025 kg/m³), the calculation would be:

• Pressure (P) = 1025 × 9.81 × 10 = 100,462.5 Pa (Pascal)

Fluid	Density (kg/m³)	Pressure at 10m Depth (Pa)
Water	1000	98,100
Seawater	1025	100,462.5
Mercury	13,600	1,333,680
Oil	850	83,265