Science
Ideal hydraulic press
Apply equal fluid pressure to two pistons to find output force and mechanical advantage; the piston areas must use the same square-centimetre unit.
Calculators / Science / Hydrostatic pressure
Hydrostatic pressure calculator
Calculate the pressure increase below the surface of a stationary liquid from density and depth; atmospheric pressure is excluded from this gauge value.
On this page
Gauge pressure19,613.3Pa
Gauge pressure19.61kPa
Calculator controls
How to calculate
Calculate the pressure increase below the surface of a stationary liquid from density and depth; atmospheric pressure is excluded from this gauge value.
Gauge pressure = rho*g*h Pa; Gauge pressure = rho*g*h/1000 kPa
Worked example
Fluid density (kg/m³): 1000; Depth (m): 2; Gravity (m/s²): 9.80665.
Gauge pressure: 19,613.3 Pa; Gauge pressure: 19.61 kPa.
Assumptions and limits
Calculate the pressure increase below the surface of a stationary liquid from density and depth; atmospheric pressure is excluded from this gauge value. Ideal incompressible fluid with constant density. Gauge pressure excludes atmospheric pressure; the hydraulic press ignores friction and losses.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate the pressure increase below the surface of a stationary liquid from density and depth; atmospheric pressure is excluded from this gauge value.
When this tool is useful
Gauge pressure = rho*g*h Pa; Gauge pressure = rho*g*h/1000 kPa
Understanding your inputs
| Input | What to enter |
|---|---|
| Fluid density (kg/m³) | Enter a number of at least 1e-12 and no more than 1000000000000. |
| Depth (m) | Enter a number of at least 0 and no more than 1000000000000. |
| Gravity (m/s²) | Enter a number of at least 1e-12 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Calculate the pressure increase below the surface of a stationary liquid from density and depth; atmospheric pressure is excluded from this gauge value. Ideal incompressible fluid with constant density. Gauge pressure excludes atmospheric pressure; the hydraulic press ignores friction and losses.
How is the result calculated?
Gauge pressure = rho*g*h Pa; Gauge pressure = rho*g*h/1000 kPa