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Pressure in a Liquid Calculator

🧱 Forces & Newton’s laws. Use the Pressure in a liquid formula to find pressure, density ρ, g, depth: pick the value you want, type the others, and the answer updates as you go.

p=ρghp = \rho g h
Pressure98100 Pa

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
PressurePa
Density ρkg/m³
gN/kg
Depthm

Worked example

Find the pressure when Density ρ = 1000 kg/m³, g = 9.81 N/kg, Depth = 10 m.

Using p = ρ g h: Pressure = 98100 Pa.

Frequently asked questions

What is the formula for Pressure in a liquid?

p = ρ g h.

What do the letters stand for, and what units are used?

Pressure in Pa, Density ρ in kg/m³, g in N/kg, Depth in m.

How do you calculate pressure?

Put the values into p = ρ g h. For example, with Density ρ = 1000 kg/m³, g = 9.81 N/kg, Depth = 10 m, pressure = 98100 Pa.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (pressure, density ρ, g, depth) and fill in the others: it rearranges the formula for you.

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