Pascal Converter
Convert Pascal to Millimeter Water 4 176 C and more • 57 conversions
0
Unit Explanations
PascalPa
Source UnitThe pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
Fun Fact
The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
Millimeter of Water at 4°CmmH2O
Target UnitThe millimeter of water at 4°C (mmH2O) is a unit of pressure defined as the pressure exerted by a column of pure water at 4 degrees Celsius, at a height of one millimeter. This measurement is based on the unique property of water, which reaches its maximum density at this temperature, providing a standardized reference point for pressure measurements. It is commonly used in various scientific and engineering applications where low pressure ranges are analyzed, particularly in fluid dynamics and hydraulics.
Current Use
Today, the millimeter of water at 4°C is widely utilized in various industries for measuring low pressures, especially in fields such as hydrology, meteorology, and HVAC systems. This unit is particularly useful in applications involving fluid dynamics and pressure drop calculations in piping systems. Engineers and scientists often rely on this measurement to ensure the proper functioning of systems that depend on precise pressure readings.
Fun Fact
Water is most dense at 4°C, making it an ideal reference for pressure measurements.
All Pressure Conversions
105 convertersPopular Conversions
📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
Quick Examples
💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Pascal
pressure • SI Unit
Definition
The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
History & Origin
The pascal was named in honor of Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and the study of pressure. The unit was officially adopted as the SI unit for pressure in 1971, although the concept of pressure itself dates back to early scientific studies of fluids and gases. The pascal provided a standardized way to measure pressure, replacing a variety of non-standard units previously in use across different regions and industries.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
- •One pascal is a very small pressure; it is equivalent to the pressure of a dollar bill lying flat on a table.
- •The human eardrum can detect pressure changes as small as 20 micropascals.
📏 Real-World Examples
🔗 Related Units
Millimeter of Water at 4°C
pressure • Non-SI
Definition
The millimeter of water at 4°C (mmH2O) is a unit of pressure defined as the pressure exerted by a column of pure water at 4 degrees Celsius, at a height of one millimeter. This measurement is based on the unique property of water, which reaches its maximum density at this temperature, providing a standardized reference point for pressure measurements. It is commonly used in various scientific and engineering applications where low pressure ranges are analyzed, particularly in fluid dynamics and hydraulics.
History & Origin
The millimeter of water as a unit of pressure originated from the need to measure fluid pressures in engineering and science. Water's unique properties, especially at 4°C, were utilized to create a reliable standard for pressure measurement. Historically, various units based on water columns have been used, such as inches of mercury, but the millimeter of water provides a more practical scale for many applications.
Etymology: The term 'millimeter' derives from the metric system, where 'milli-' signifies one-thousandth, combined with 'meter,' the base unit of length. 'Water' refers to the common fluid used to establish pressure in this context.
Current Use
Today, the millimeter of water at 4°C is widely utilized in various industries for measuring low pressures, especially in fields such as hydrology, meteorology, and HVAC systems. This unit is particularly useful in applications involving fluid dynamics and pressure drop calculations in piping systems. Engineers and scientists often rely on this measurement to ensure the proper functioning of systems that depend on precise pressure readings.
💡 Fun Facts
- •Water is most dense at 4°C, making it an ideal reference for pressure measurements.
- •1 mmH2O is approximately equal to 9.81 pascals.
- •The millimeter of water is often used in barometers for measuring atmospheric pressure.
📏 Real-World Examples
🔗 Related Units
Related Pressure Conversions
Explore more pressure conversions for your calculations.
Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
Can I convert back to ?▼
Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.