Convert millimeter water (4°C) to poundal/square foot
Please provide values below to convert millimeter water (4°C) [mmH2O] to poundal/square foot [pdl/ft^2], or Convert poundal/square foot to millimeter water (4°C).
How to Convert Millimeter Water (4°c) to Poundal/square Foot
1 mmH2O = 6.58958313423453 pdl/ft^2
Example: convert 15 mmH2O to pdl/ft^2:
15 mmH2O = 15 × 6.58958313423453 pdl/ft^2 = 98.8437470135179 pdl/ft^2
Millimeter Water (4°c) to Poundal/square Foot Conversion Table
| millimeter water (4°C) | poundal/square foot |
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Millimeter Water (4°c)
Millimeter water (4°C) is a unit of pressure measuring the height of a water column at 4 degrees Celsius that exerts a specific pressure.
History/Origin
The unit originated from the use of water columns to measure pressure, particularly in hydrology and medical applications, with standardization based on the density of water at 4°C.
Current Use
It is primarily used in medical and scientific contexts to measure low pressures, such as intracranial pressure, respiratory pressures, and in calibration of pressure sensors.
Poundal/square Foot
The poundal per square foot (pdl/ft^2) is a unit of pressure representing the force of one poundal applied over an area of one square foot.
History/Origin
The poundal is an imperial unit of force introduced in the 19th century as part of the foot-pound-second system, primarily used in engineering contexts. The unit pdl/ft^2 was used historically in mechanical and civil engineering to measure pressure but has largely been replaced by SI units.
Current Use
The poundal per square foot is rarely used in modern practice, having been largely replaced by the pascal (Pa) in scientific and engineering applications. It may still appear in legacy systems or specific regional engineering contexts.