Convert Millimeter of Water to Pound Force Per Square Inch (mmH2O to Pound Force Per Square Inch)
Millimeter of Water (mmH2O) and Pound Force Per Square Inch (Pound Force Per Square Inch) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert millimeter of water to pound force per square inch. This free online calculator tool makes it simple and easy to perform the conversion from mmH2O unit to the Pound Force Per Square Inch unit.
Millimeter of Water to Pound Force Per Square Inch conversion
Millimeter of Water to Pound Force Per Square Inch Conversion Formula
One Millimeter of Water is equal to 0.001422334391 Pound Force Per Square Inch.
Formula: 1 mmH2O = 0.001422334391 Pound Force Per Square Inch
By using this conversion factor, you can easily convert any pressure measurement from millimeter of water unit to pound force per square inch unit with precision.
How to Convert mmH2O to Pound Force Per Square Inch?
Converting from mmH2O to Pound Force Per Square Inch is a straightforward process. Follow these steps to ensure accurate conversions from millimeter of water to pound force per square inch:
- Select the Millimeter of Water Value: Start by determining the millimeter of water (mmH2O) value you want to convert into pound force per square inch (Pound Force Per Square Inch). This is your starting point.
- Multiply by the Conversion Factor: To calculate millimeter of water to equivalent pound force per square inch amount, multiply the selected mmH2O value by 0.001422334391.
- Illustration of Multiplication:
- 1 mmH2O = 0.001422334391 Pound Force Per Square Inch
- 10 mmH2O = 0.014223343912 Pound Force Per Square Inch
- 100 mmH2O = 0.142233439119 Pound Force Per Square Inch
- Find the Conversion Result: The result of this multiplication is your converted value in pound force per square inch unit. This represents the same pressure but in a different unit.
- Save Your Pound Force Per Square Inch Value: After converting, remember to save the result. This value represents the pressure you initially measured, now expressed in pound force per square inchs.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the millimeter of water value by 703.069549744. This alternative method also gives you the correct pressure in pound force per square inchs.
- Illustration of Division:
- Pound Force Per Square Inch = mmh2o ÷ 703.069549744
What is Pressure?
Pressure is the force applied perpendicular to a surface per unit area: P = F / A. The SI unit is the pascal (Pa), equal to one newton per square metre (1 Pa = 1 N/m²). Practical applications use larger units: the bar (1 bar = 100,000 Pa, close to standard atmospheric pressure), atmosphere (atm) (1 atm = 101,325 Pa), and psi (pounds per square inch, used in the US for tire and gas pressures). Blood pressure is measured in mmHg (millimetres of mercury), also called torr.
What is Millimeter of Water?
The millimeter of water (symbol: mmH₂O or mmH2O) is a non-SI unit of pressure defined as the pressure exerted by a one-millimeter column of water under standard gravity. It is commonly used in ventilation systems, clean rooms, HVAC engineering, and laboratory instruments to measure small pressure differences. Although the pascal is the SI unit of pressure, the millimeter of water remains a practical unit for low-pressure applications. It is based on the concept of a water column.
One millimeter of water is equal to 9.80665 pascals, 0.1 centimeter of water, 0.0000980665 bar, 0.00142233 pounds per square inch, and 0.00980665 kilopascal. The millimeter of water is widely used for measuring very low gas and liquid pressures.
What is Pound Force Per Square Inch?
The pound force per square inch (symbol: psi or lbf/in2) is a non-SI unit of pressure equal to one pound-force applied over an area of one square inch. It is one of the most widely used pressure units in the United States for measuring tire pressure, hydraulic systems, compressed gases, and industrial equipment. Although the pascal is the SI unit of pressure, the psi remains the preferred unit in many engineering applications. More information is available in the pounds per square inch article.
One pound force per square inch is equal to 6,894.76 pascals, 6.89476 kilopascals, 0.0689476 bar, 0.068046 standard atmosphere, and 0.0703069 kilogram-force per square centimetre. The psi is one of the world's most recognized units for measuring pressure.
Some Millimeter of Water to Pound Force Per Square Inch conversions
- 0.1 mmH2O = 0.00014223343911902914 Pound Force Per Square Inch
- 0.2 mmH2O = 0.00028446687823805828 Pound Force Per Square Inch
- 0.3 mmH2O = 0.00042670031735708742 Pound Force Per Square Inch
- 0.4 mmH2O = 0.00056893375647611656 Pound Force Per Square Inch
- 0.5 mmH2O = 0.0007111671955951457 Pound Force Per Square Inch
- 0.6 mmH2O = 0.00085340063471417484 Pound Force Per Square Inch
- 0.7 mmH2O = 0.00099563407383320398 Pound Force Per Square Inch
- 0.8 mmH2O = 0.001137867513 Pound Force Per Square Inch
- 0.9 mmH2O = 0.001280100952 Pound Force Per Square Inch
- 1 mmH2O = 0.001422334391 Pound Force Per Square Inch
- 2 mmH2O = 0.002844668782 Pound Force Per Square Inch
- 3 mmH2O = 0.004267003174 Pound Force Per Square Inch
- 4 mmH2O = 0.005689337565 Pound Force Per Square Inch
- 5 mmH2O = 0.007111671956 Pound Force Per Square Inch
- 6 mmH2O = 0.008534006347 Pound Force Per Square Inch
- 7 mmH2O = 0.009956340738 Pound Force Per Square Inch
- 8 mmH2O = 0.01137867513 Pound Force Per Square Inch
- 9 mmH2O = 0.012801009521 Pound Force Per Square Inch
- 10 mmH2O = 0.014223343912 Pound Force Per Square Inch
- 20 mmH2O = 0.028446687824 Pound Force Per Square Inch
- 30 mmH2O = 0.042670031736 Pound Force Per Square Inch
- 40 mmH2O = 0.056893375648 Pound Force Per Square Inch
- 50 mmH2O = 0.07111671956 Pound Force Per Square Inch
- 60 mmH2O = 0.085340063471 Pound Force Per Square Inch
- 70 mmH2O = 0.099563407383 Pound Force Per Square Inch
- 80 mmH2O = 0.113786751295 Pound Force Per Square Inch
- 90 mmH2O = 0.128010095207 Pound Force Per Square Inch
- 100 mmH2O = 0.142233439119 Pound Force Per Square Inch

Millimeter of Water to Pound Force Per Square Inch Examples
Example 1:
Convert 0.8 Millimeter of Water pressure to Pound Force Per Square Inch unit.
Solution:
We know that one Millimeter of Water is equivalent to 0.001422334391 Pound Force Per Square Inch.
Therefore,
0.8 mmH2O = 0.8 x 0.001422334391 Pound Force Per Square Inch.
0.8 mmH2O = 0.001137867513 Pound Force Per Square Inch.
Hence, 0.8 Millimeter of Water is approximately equal to 0.001137867513 Pound Force Per Square Inch.
Example 2:
Convert 7 Millimeter of Water pressure to Pound Force Per Square Inch unit.
Solution:
We know that one Millimeter of Water is equivalent to 0.001422334391 Pound Force Per Square Inch.
Therefore,
7 mmH2O = 7 x 0.001422334391 Pound Force Per Square Inch.
7 mmH2O = 0.009956340738 Pound Force Per Square Inch.
Hence, 7 Millimeter of Water is approximately equal to 0.009956340738 Pound Force Per Square Inch.
Frequently Asked Questions
How do you convert mmH2O to Pound Force Per Square Inch formula?
The main formula for the conversion of the mmH2O value to Pound Force Per Square Inch amount is to multiply the mmH2O value by 0.001422334391.
There are 0.001422334391 Pound Force Per Square Inch in 1 Millimeter of Water.To convert from Millimeter of Water to Pound Force Per Square Inch, multiply your figure by 0.001422334391 (or divide by 703.069549744).
What is the relation between Millimeter of Water and Pound Force Per Square Inch?
The relationship between Millimeter of Water and Pound Force Per Square Inch is given as follows: 1 mmH2O = 0.001422334391 Pound Force Per Square Inch
What is the value of 1 Millimeter of Water in equivalent Pound Force Per Square Inch?
1 Millimeter of Water pressure is equivalent to 0.001422334391 Pound Force Per Square Inch pressure.
What is the millimeter-of-water in pound-per-square-inch?
1 millimeter-of-water equals 0.001422334391 pound-per-square-inchs.
What is the value of 15 Millimeter of Water in Pound Force Per Square Inchs?
We know that 1 Millimeter of Water is equal to 0.001422334391 Pound Force Per Square Inch, multiply 15 by 0.001422334391 Pound Force Per Square Inch. Therefore, 15 Millimeter of Water = 15 x 0.001422334391 Pound Force Per Square Inch, 15 mmH2O = 0.021335015868 Pound Force Per Square Inch. Hence, the value of 15 Millimeter of Water in Pound Force Per Square Inch is 0.021335015868 Pound Force Per Square Inch.
What Pressure is 1 Pound Force Per Square Inch?
The Pressure of 1 Pound Force Per Square Inch spans 703.069549744 Millimeter of Water.
1 mmH2O how much pound-per-square-inch?
1 Millimeter of Water (mmH2O) corresponds to 0.001422334391 Pound Force Per Square Inch (Pound Force Per Square Inch).
Millimeter of Water to Other Unit Conversions
- mmH2O to Attopascal
- mmH2O to Bar
- mmH2O to Ba
- mmH2O to Centimeter of Mercury
- mmH2O to Centimeter of water