Convert Pound Force Per Square Inch to Millimeter of Water (psi to Millimeter of Water)
Pound Force Per Square Inch (psi) and Millimeter of Water (Millimeter of Water) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert pound force per square inch to millimeter of water. This free online calculator tool makes it simple and easy to perform the conversion from psi unit to the Millimeter of Water unit.
Pound Force Per Square Inch to Millimeter of Water conversion
Pound Force Per Square Inch to Millimeter of Water Conversion Formula
One Pound Force Per Square Inch is equal to 703.069549744 Millimeter of Water.
Formula: 1 psi = 703.069549744 Millimeter of Water
By using this conversion factor, you can easily convert any pressure measurement from pound force per square inch unit to millimeter of water unit with precision.
How to Convert psi to Millimeter of Water?
Converting from psi to Millimeter of Water is a straightforward process. Follow these steps to ensure accurate conversions from pound force per square inch to millimeter of water:
- Select the Pound Force Per Square Inch Value: Start by determining the pound force per square inch (psi) value you want to convert into millimeter of water (Millimeter of Water). This is your starting point.
- Multiply by the Conversion Factor: To calculate pound force per square inch to equivalent millimeter of water amount, multiply the selected psi value by 703.069549744.
- Illustration of Multiplication:
- 1 psi = 703.069549744 Millimeter of Water
- 10 psi = 7030.695497 Millimeter of Water
- 100 psi = 70306.954974 Millimeter of Water
- Find the Conversion Result: The result of this multiplication is your converted value in millimeter of water unit. This represents the same pressure but in a different unit.
- Save Your Millimeter of Water Value: After converting, remember to save the result. This value represents the pressure you initially measured, now expressed in millimeter of waters.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the pound force per square inch value by 0.001422334391. This alternative method also gives you the correct pressure in millimeter of waters.
- Illustration of Division:
- Millimeter of Water = psi ÷ 0.001422334391
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 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.
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.
Some Pound Force Per Square Inch to Millimeter of Water conversions
- 0.1 psi = 70.306954974 Millimeter of Water
- 0.2 psi = 140.613909949 Millimeter of Water
- 0.3 psi = 210.920864923 Millimeter of Water
- 0.4 psi = 281.227819898 Millimeter of Water
- 0.5 psi = 351.534774872 Millimeter of Water
- 0.6 psi = 421.841729847 Millimeter of Water
- 0.7 psi = 492.148684821 Millimeter of Water
- 0.8 psi = 562.455639795 Millimeter of Water
- 0.9 psi = 632.76259477 Millimeter of Water
- 1 psi = 703.069549744 Millimeter of Water
- 2 psi = 1406.139099 Millimeter of Water
- 3 psi = 2109.208649 Millimeter of Water
- 4 psi = 2812.278199 Millimeter of Water
- 5 psi = 3515.347749 Millimeter of Water
- 6 psi = 4218.417298 Millimeter of Water
- 7 psi = 4921.486848 Millimeter of Water
- 8 psi = 5624.556398 Millimeter of Water
- 9 psi = 6327.625948 Millimeter of Water
- 10 psi = 7030.695497 Millimeter of Water
- 20 psi = 14061.390995 Millimeter of Water
- 30 psi = 21092.086492 Millimeter of Water
- 40 psi = 28122.78199 Millimeter of Water
- 50 psi = 35153.477487 Millimeter of Water
- 60 psi = 42184.172985 Millimeter of Water
- 70 psi = 49214.868482 Millimeter of Water
- 80 psi = 56245.56398 Millimeter of Water
- 90 psi = 63276.259477 Millimeter of Water
- 100 psi = 70306.954974 Millimeter of Water

Pound Force Per Square Inch to Millimeter of Water Examples
Example 1:
Convert 0.2 Pound Force Per Square Inch pressure to Millimeter of Water unit.
Solution:
We know that one Pound Force Per Square Inch is equivalent to 703.069549744 Millimeter of Water.
Therefore,
0.2 psi = 0.2 x 703.069549744 Millimeter of Water.
0.2 psi = 140.613909949 Millimeter of Water.
Hence, 0.2 Pound Force Per Square Inch is approximately equal to 140.613909949 Millimeter of Water.
Example 2:
Convert 10 Pound Force Per Square Inch pressure to Millimeter of Water unit.
Solution:
We know that one Pound Force Per Square Inch is equivalent to 703.069549744 Millimeter of Water.
Therefore,
10 psi = 10 x 703.069549744 Millimeter of Water.
10 psi = 7030.695497 Millimeter of Water.
Hence, 10 Pound Force Per Square Inch is approximately equal to 7030.695497 Millimeter of Water.
Frequently Asked Questions
How do you convert psi to Millimeter of Water formula?
The main formula for the conversion of the psi value to Millimeter of Water amount is to multiply the psi value by 703.069549744.
There are 703.069549744 Millimeter of Water in 1 Pound Force Per Square Inch.To convert from Pound Force Per Square Inch to Millimeter of Water, multiply your figure by 703.069549744 (or divide by 0.001422334391).
What is the relation between Pound Force Per Square Inch and Millimeter of Water?
The relationship between Pound Force Per Square Inch and Millimeter of Water is given as follows: 1 psi = 703.069549744 Millimeter of Water
What is the value of 1 Pound Force Per Square Inch in equivalent Millimeter of Water?
1 Pound Force Per Square Inch pressure is equivalent to 703.069549744 Millimeter of Water pressure.
What is the pound-per-square-inch in millimeter-of-water?
1 pound-per-square-inch equals 703.069549744 millimeter-of-waters.
What is the value of 15 Pound Force Per Square Inch in Millimeter of Waters?
We know that 1 Pound Force Per Square Inch is equal to 703.069549744 Millimeter of Water, multiply 15 by 703.069549744 Millimeter of Water. Therefore, 15 Pound Force Per Square Inch = 15 x 703.069549744 Millimeter of Water, 15 psi = 10546.043246 Millimeter of Water. Hence, the value of 15 Pound Force Per Square Inch in Millimeter of Water is 10546.043246 Millimeter of Water.
What Pressure is 1 Millimeter of Water?
The Pressure of 1 Millimeter of Water spans 0.001422334391 Pound Force Per Square Inch.
1 psi how much millimeter-of-water?
1 Pound Force Per Square Inch (psi) corresponds to 703.069549744 Millimeter of Water (Millimeter of Water).
Pound Force Per Square Inch to Other Unit Conversions
- psi to Ba
- psi to dyn/cm²
- psi to gf/m²
- psi to Kilogram-force per Square Meter
- psi to Metric Ton-force per Square Centimeter