Pressure-to-Depth and Depth-to-Pressure Calculator

By Rusty

Calculator

This calculator uses simple hydrostatic pressure equations. The pressure, \(P\) of a fluid at depth depends only on the density, \(\rho\), the acceleration of gravity, \(g\), and the depth or height of the fluid column, \(h\).

\[P = \rho g h \]

The calculator uses the following values for these parameters:

\(\rho_{fresh} = 997.0474 \: kg/m^3 \) (for freshwater)
\(\rho_{salt} = 1023.6 \: kg/m^3 \) (for saltwater)
\(g = 9.80665 \: m/s^2 \)

This calculator determines the water depth to reach a given pressure or the pressure at a given depth. You can enter the depth or pressure input with most common units and it will be converted automatically. This calculator does not add air pressure at the surface—the results are relative to the surface pressure. It uses the js-quantities library by gentooboontoo for unit conversions.

Learn More and Explore

For watertight enclosure design, please check out Under Pressure.

Interested in exploring more? Check out these products:

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